

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document by BUL45D2/D
Designer's Data Sheet
High Speed, High Gain Bipolar NPN Power Transistor with Integrated Collector-Emitter Diode and Built-in Efficient Antisaturation Network
The BUL45D2 is state±of±art High Speed High gain BIPolar transistor (H2BIP). High dynamic characteristics and lot to lot minimum spread (±150 ns on storage time) make it ideally suitable for light ballast applications. Therefore, there is no need to guarantee an hFE window.
Main features:
•Low Base Drive Requirement
•High Peak DC Current Gain (55 Typical) @ IC = 100 mA
•Extremely Low Storage Time Min/Max Guarantees Due to the H2BIP Structure which Minimizes the Spread
•Integrated Collector±Emitter Free Wheeling Diode
•Fully Characterized and Guaranteed Dynamic VCE(sat)
•ª6 Sigmaº Process Providing Tight and Reproductible Parameter Spreads
It's characteristics make it also suitable for PFC application.
MAXIMUM RATINGS
BUL45D2
POWER TRANSISTORS
5 AMPERES
700 VOLTS
75 WATTS
CASE 221A±06
TO±220AB
Rating |
Symbol |
Value |
Unit |
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Collector±Emitter Sustaining Voltage |
VCEO |
400 |
Vdc |
Collector±Base Breakdown Voltage |
VCBO |
700 |
Vdc |
Collector±Emitter Breakdown Voltage |
VCES |
700 |
Vdc |
Emitter±Base Voltage |
VEBO |
12 |
Vdc |
Collector Current Ð Continuous |
IC |
5 |
Adc |
Ð Peak (1) |
ICM |
10 |
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Base Current Ð Continuous |
IB |
2 |
Adc |
Base Current Ð Peak (1) |
IBM |
4 |
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*Total Device Dissipation @ TC = 25_C |
PD |
75 |
Watt |
*Derate above 25°C |
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0.6 |
W/_C |
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Operating and Storage Temperature |
TJ, Tstg |
± 65 to 150 |
_C |
THERMAL CHARACTERISTICS
Thermal Resistance |
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_C/W |
Ð Junction to Case |
RqJC |
1.65 |
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Ð Junction to Ambient |
RqJA |
62.5 |
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Maximum Lead Temperature for Soldering Purposes: |
TL |
260 |
_C |
1/8″ from case for 5 seconds |
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(1) Pulse Test: Pulse Width = 5 ms, Duty Cycle ≤ 10%. |
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Designer's and SWITCHMODE are trademarks of Motorola, Inc.
Designer's Data for ªWorst Caseº Conditions Ð The Designer 's Data Sheet permits the design of most circuits entirely from the information presented. SOA Limit curves Ð representing boundaries on device characteristics Ð are given to facilitate ªworst caseº design.
Motorola, Inc. 1995

BUL45D2
ELECTRICAL CHARACTERISTICS (TC = 25°C unless otherwise noted)
Characteristic |
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Symbol |
Min |
Typ |
Max |
Unit |
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OFF CHARACTERISTICS |
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Collector±Emitter Sustaining Voltage |
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VCEO(sus) |
400 |
450 |
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Vdc |
(IC = 100 mA, L = 25 mH) |
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Collector±Base Breakdown Voltage |
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VCBO |
700 |
910 |
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Vdc |
(ICBO = 1 mA) |
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Emitter±Base Breakdown Voltage |
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VEBO |
12 |
14.1 |
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Vdc |
(IEBO = 1 mA) |
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Collector Cutoff Current |
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ICEO |
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100 |
μAdc |
(VCE = Rated VCEO, IB = 0) |
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Collector Cutoff Current (VCE = Rated VCES, VEB = 0) |
@ TC = 25°C |
ICES |
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100 |
μAdc |
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@ TC = 125°C |
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500 |
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Collector Cutoff Current (VCE = 500 V, VEB = 0) |
@ TC = 125°C |
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100 |
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Emitter±Cutoff Current |
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IEBO |
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100 |
μAdc |
(VEB = 10 Vdc, IC = 0) |
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ON CHARACTERISTICS |
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Base±Emitter Saturation Voltage |
@ TC = 25°C |
VBE(sat) |
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Vdc |
(IC = 0.8 Adc, IB = 80 mAdc) |
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0.8 |
1 |
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@ TC = 125°C |
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0.7 |
0.9 |
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(IC = 2 Adc, IB = 0.4 Adc) |
@ TC = 25°C |
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0.89 |
1 |
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@ TC = 125°C |
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0.79 |
0.9 |
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Collector±Emitter Saturation Voltage |
@ TC = 25°C |
VCE(sat) |
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Vdc |
(IC = 0.8 Adc, IB = 80 mAdc) |
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0.28 |
0.4 |
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@ TC = 125°C |
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0.32 |
0.5 |
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(IC = 2 Adc, IB = 0.4 Adc) |
@ TC = 25°C |
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0.32 |
0.5 |
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@ TC = 125°C |
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0.38 |
0.6 |
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(IC = 0.8 Adc, IB = 40 mAdc) |
@ TC = 25°C |
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0.46 |
0.75 |
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@ TC = 125°C |
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0.62 |
1 |
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DC Current Gain |
@ TC = 25°C |
hFE |
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Ð |
(IC = 0.8 Adc, VCE = 1 Vdc) |
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22 |
34 |
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@ TC = 125°C |
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20 |
29 |
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(IC = 2 Adc, VCE = 1 Vdc) |
@ TC = 25°C |
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10 |
14 |
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@ TC = 125°C |
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7 |
9.5 |
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DIODE CHARACTERISTICS |
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Forward Diode Voltage |
@ TC = 25°C |
VEC |
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V |
(IEC = 1 Adc) |
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1.04 |
1.5 |
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@ TC = 125°C |
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0.7 |
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(IEC = 2 Adc) |
@ TC = 25°C |
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1.2 |
1.6 |
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@ TC = 125°C |
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(IEC = 0.4 Adc) |
@ TC = 25°C |
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0.85 |
1.2 |
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@ TC = 125°C |
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0.62 |
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Forward Recovery Time (see Figure 27) |
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Tfr |
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330 |
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ns |
(IF = 1 Adc, di/dt = 10 A/μs) |
@ TC = 25°C |
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(IF = 2 Adc, di/dt = 10 A/μs) |
@ TC = 25°C |
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360 |
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(IF = 0.4 Adc, di/dt = 10 A/μs) |
@ TC = 25°C |
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320 |
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2 |
Motorola Bipolar Power Transistor Device Data |

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BUL45D2 |
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ELECTRICAL CHARACTERISTICS (TC = 25°C unless otherwise noted) |
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Characteristic |
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DYNAMIC CHARACTERISTICS |
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Current Gain Bandwidth |
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fT |
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13 |
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MHz |
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(IC = 0.5 Adc, VCE = 10 Vdc, f = 1 MHz) |
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Output Capacitance |
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Cob |
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50 |
75 |
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pF |
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(VCB = 10 Vdc, IE = 0, f = 1 MHz) |
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Input Capacitance |
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Cib |
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340 |
500 |
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pF |
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(VEB = 8 Vdc) |
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DYNAMIC SATURATION VOLTAGE |
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I |
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= 1 A |
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@ 1 μs |
@ TC = 25°C |
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VCE(dsat) |
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3.7 |
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V |
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C |
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° |
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9.4 |
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@ TC = 125 C |
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Dynamic Saturation |
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IB1 = 100 mA |
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@ 3 μs |
@ TC = 25°C |
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0.35 |
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V |
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Voltage: |
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VCC = 300 V |
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μ |
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@ TC = 125°C |
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2.7 |
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Determined 1 s and |
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3 μs respectively after |
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@ 1 μs |
@ TC = 25°C |
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3.9 |
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V |
rising IB1 reaches |
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I |
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= 2 A |
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C |
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° |
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12 |
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90% of final IB1 |
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I |
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= 0.8 A |
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@ TC = 125 C |
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B1 |
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@ 3 μs |
@ TC = 25°C |
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0.4 |
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V |
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VCC = 300 V |
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@ TC = 125°C |
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1.5 |
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SWITCHING CHARACTERISTICS: Resistive Load (D.C. ≤ 10%, Pulse Width = 20 μs) |
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Turn±on Time |
I |
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= 2 Adc, I |
= 0.4 Adc |
@ TC = 25°C |
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ton |
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90 |
150 |
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ns |
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C |
° |
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105 |
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B1 |
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@ TC = 125 C |
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IB2 = 1 Adc |
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Turn±off Time |
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@ TC = 25°C |
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toff |
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1.15 |
1.3 |
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μs |
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V = 300 Vdc |
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CC |
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@ TC = 125°C |
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1.5 |
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Turn±on Time |
I |
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= 2 Adc, I |
= 0.4 Adc |
@ TC = 25°C |
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ton |
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90 |
150 |
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ns |
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C |
° |
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110 |
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B1 |
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@ TC = 125 C |
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IB2 = 0.4 Adc |
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Turn±off Time |
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@ TC = 25°C |
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toff |
2.1 |
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2.4 |
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μs |
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VCC = 300 Vdc |
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@ TC = 125°C |
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3.1 |
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SWITCHING CHARACTERISTICS: Inductive Load (Vclamp = 300 V, VCC = 15 V, L = 200 μH) |
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Fall Time |
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@ TC = 25°C |
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tf |
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90 |
150 |
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ns |
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IC = 1 Adc |
@ TC = 125°C |
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93 |
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Storage Time |
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@ TC = 25°C |
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ts |
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0.72 |
0.9 |
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μs |
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IB1 = 100 mAdc |
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@ TC = 125°C |
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1.05 |
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IB2 = 500 mAdc |
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Crossover Time |
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@ TC = 25°C |
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tc |
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95 |
150 |
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ns |
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@ TC = 125°C |
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95 |
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Fall Time |
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@ TC = 25°C |
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tf |
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80 |
150 |
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ns |
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IC = 2 Adc |
@ TC = 125°C |
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105 |
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Storage Time |
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@ TC = 25°C |
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ts |
1.95 |
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2.25 |
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μs |
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IB1 = 0.4 Adc |
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@ TC = 125°C |
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2.9 |
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IB2 = 0.4 Adc |
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Crossover Time |
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@ TC = 25°C |
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tc |
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225 |
300 |
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ns |
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@ TC = 125°C |
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450 |
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Motorola Bipolar Power Transistor Device Data |
3 |

BUL45D2
TYPICAL STATIC CHARACTERISTICS
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100 |
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VCE = 1 V |
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GAIN |
80 |
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TJ = 125°C |
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TJ = 25°C |
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CURRENT |
60 |
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40 |
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TJ = ± 20°C |
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, DC |
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FE |
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h |
20 |
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0 |
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0.001 |
0.01 |
0.1 |
1 |
10 |
IC, COLLECTOR CURRENT (AMPS)
Figure 1. DC Current Gain @ 1 Volt
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4 |
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TJ = 25°C |
(VOLTS) |
3 |
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VOLTAGE, |
2 |
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CE |
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5 A |
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V |
1 |
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2 A |
3 A |
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4 A |
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1 A |
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IC = 500 mA |
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0 |
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1 |
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0.001 |
0.01 |
0.1 |
10 |
IB, BASE CURRENT (AMPS)
Figure 3. Collector Saturation Region
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10 |
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IC/IB = 10 |
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(VOLTS) |
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, VOLTAGE |
1 |
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CE |
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TJ = ± 20°C |
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V |
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TJ = 125°C |
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TJ = 25°C |
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0.1 |
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1 |
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0.001 |
0.01 |
0.1 |
10 |
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IC, COLLECTOR CURRENT (AMPS) |
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Figure 5. Collector±Emitter Saturation Voltage
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100 |
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VCE = 5 V |
TJ = 125°C |
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GAIN |
80 |
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TJ = 25°C |
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CURRENT |
60 |
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40 |
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TJ = ± 20°C |
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, DC |
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FE |
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h |
20 |
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0 |
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0.001 |
0.01 |
0.1 |
1 |
10 |
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IC, COLLECTOR CURRENT (AMPS) |
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Figure 2. DC Current Gain @ 5 Volt
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10 |
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IC/IB = 5 |
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TJ = 25°C |
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(VOLTS) |
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, VOLTAGE |
1 |
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TJ = 125°C |
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CE |
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V |
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TJ = ± 20°C |
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0.1 |
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0.001 |
0.01 |
0.1 |
1 |
10 |
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IC, COLLECTOR CURRENT (AMPS) |
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Figure 4. Collector±Emitter Saturation Voltage
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10 |
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IC/IB = 20 |
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(VOLTS) |
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,VOLTAGE |
1 |
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° |
TJ = 125°C |
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CE |
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TJ = 25 C |
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TJ = ± 20°C |
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V |
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0.1 |
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0.001 |
0.01 |
0.1 |
1 |
10 |
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IC, COLLECTOR CURRENT (AMPS) |
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Figure 6. Collector±Emitter Saturation Voltage
4 |
Motorola Bipolar Power Transistor Device Data |

BUL45D2
TYPICAL STATIC CHARACTERISTICS
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10 |
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IC/IB = 5 |
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(VOLTS) |
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TJ |
= 25°C |
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, VOLTAGE |
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1 |
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TJ = ± 20°C |
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BE |
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TJ = 125°C |
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V |
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0.1 |
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0.001 |
0.01 |
0.1 |
1 |
10 |
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IC, COLLECTOR CURRENT (AMPS) |
|
Figure 7. Base±Emitter Saturation Region
|
10 |
|
|
|
|
|
IC/IB = 20 |
|
|
|
|
(VOLTS) |
|
|
|
|
|
, VOLTAGE |
1 |
|
TJ = ± 20°C |
|
|
|
|
|
TJ = 125°C |
|
|
BE |
|
|
|
|
|
V |
|
TJ = 25°C |
|
|
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|
|
|
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||
|
0.1 |
|
|
|
10 |
|
0.001 |
0.01 |
0.1 |
1 |
|
|
|
IC, COLLECTOR CURRENT (AMPS) |
|
Figure 9. Base±Emitter Saturation Region
|
1000 |
|
|
|
|
C |
ib |
(pF) |
TJ = 25°C |
|
|
|
f(test) = 1 MHz |
|
|
|
|
|
|
(pF) |
100 |
|
|
|
CAPACITANCE |
|
|
|
Cob (pF) |
10 |
|
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|
|
C, |
|
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|
1 |
|
|
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|
1 |
|
10 |
100 |
VR, REVERSE VOLTAGE (VOLTS)
Figure 11. Capacitance
|
10 |
|
|
|
|
|
|
IC/IB = 10 |
|
|
|
(VOLTS) |
|
|
|
|
|
, VOLTAGE |
1 |
|
TJ = ± 20°C |
|
|
|
|
TJ = 125°C |
|
|
|
BE |
|
|
|
|
|
V |
|
|
TJ = 25°C |
|
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|
|
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|
|
|
0.1 |
|
|
|
|
|
0.001 |
0.01 |
0.1 |
1 |
10 |
IC, COLLECTOR CURRENT (AMPS)
Figure 8. Base±Emitter Saturation Region
|
10 |
|
|
|
VOLTAGE (VOLTS) |
1 |
|
25°C |
|
FORWARD DIODE |
|
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||
|
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||
|
|
125°C |
|
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|
0.1 |
|
1 |
|
|
0.01 |
0.1 |
10 |
|
|
|
REVERSE EMITTER±COLLECTOR CURRENT (AMPS) |
|
Figure 10. Forward Diode Voltage
|
1000 |
|
|
|
900 |
BVCER @ 10 mA |
TJ = 25°C |
|
|
||
(VOLTS) |
800 |
|
|
700 |
|
|
|
BVCER |
|
|
|
600 |
|
|
|
|
|
|
|
|
|
BVCER(sus) @ 200 mA |
|
|
500 |
|
|
|
400 |
|
|
|
10 |
100 |
1000 |
|
|
RBE (Ω) |
|
Figure 12. BVCER = f(ICER)
Motorola Bipolar Power Transistor Device Data |
5 |

BUL45D2
TYPICAL SWITCHING CHARACTERISTICS
|
1000 |
|
|
|
|
|
|
|
5 |
|
|
IBon = IBoff |
|
|
TJ = 125°C |
|
|
|
|
|
800 |
VCC = 300 V |
|
|
TJ = 25°C |
|
|
|
4 |
|
PW = 20 μs |
|
|
|
|
|
|
||
(ns) |
600 |
|
|
|
|
|
|
( μs) |
3 |
|
|
|
|
|
|
|
|
||
TIME |
400 |
|
|
IC/IB = 10 |
|
|
|
TIME |
2 |
t, |
|
|
|
|
|
|
t, |
||
|
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|
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|
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||
|
|
|
|
|
|
|
IC/IB = 5 |
|
|
|
200 |
|
|
|
|
|
|
|
1 |
|
0 |
1 |
1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
0 |
|
0.5 |
|
|
|
|
|
|
|
IBon = IBoff |
|
|
|
I /I |
= 10 |
|
|
VCC = 300 V |
|
|
|
C B |
|
|
|
PW = 20 μs |
|
|
|
|
|
|
|
|
|
|
|
TJ = 125°C |
|
IC/IB = 5 |
|
|
|
|
|
|
|
|
|
|
|
|
|
TJ = 25°C |
|
|
|
|
|
0.5 |
1 |
1.5 |
2 |
2.5 |
3 |
3.5 |
4 |
IC, COLLECTOR CURRENT (AMPS) |
IC, COLLECTOR CURRENT (AMPS) |
Figure 13. Resistive Switch Time, ton |
Figure 14. Resistive Switch Time, toff |
|
4 |
|
|
|
|
|
|
IC/IB = 5 |
|
IBon = IBoff |
|
|
|
|
VCC = 15 V |
||
|
|
|
|
||
|
3 |
|
|
VZ = 300 V |
|
|
|
|
LC = 200 |
μH |
|
|
|
|
|
||
μs) |
|
|
|
|
|
( |
|
|
|
|
|
t, TIME |
2 |
|
|
|
|
|
|
|
|
|
|
|
1 |
TJ = 125°C |
|
|
|
|
|
|
|
|
|
|
|
TJ = 25°C |
|
|
|
|
0 |
|
|
|
|
|
0 |
1 |
2 |
3 |
4 |
IC, COLLECTOR CURRENT (AMPS)
|
5 |
|
|
|
|
|
|
|
|
IBon = IBoff |
|
|
4 |
|
|
VCC = 15 V |
|
|
|
|
VZ = 300 V |
|
|
|
|
|
|
|
|
|
|
|
|
LC = 200 μH |
|
μs) |
3 |
|
|
|
|
|
|
|
|
|
|
t, TIME ( |
2 |
|
|
|
|
|
1 |
TJ = 125°C |
|
|
|
|
|
TJ = 25°C |
|
|
|
|
0 |
|
|
|
|
|
0 |
1 |
2 |
3 |
4 |
IC, COLLECTOR CURRENT (AMPS)
Figure 15. Inductive Storage Time,
|
|
|
tsi @ IC/IB = 5 |
|
|
|
600 |
|
|
|
|
|
|
IBon = IBoff |
TJ = 125°C |
|
|
|
500 |
VCC = 15 V |
TJ = 25°C |
|
|
|
|
VZ = 300 V |
|
|
|
|
400 |
LC = 200 μH |
|
|
tc |
|
|
|
|
|
|
(ns) |
|
|
|
|
|
t, TIME |
300 |
|
|
|
|
|
|
|
|
|
|
|
200 |
|
|
|
|
|
100 |
|
|
|
|
|
0 |
|
|
|
tfi |
|
0 |
1 |
2 |
3 |
4 |
IC, COLLECTOR CURRENT (AMPS)
Figure 17. Inductive Switching,
tc & tfi @ IC/IB = 5
Figure 16. Inductive Storage Time,
|
|
tsi @ IC/IB = 10 |
|
|
|
|
400 |
|
|
|
|
|
|
IBoff = IBon |
|
|
|
|
|
VCC = 15 V |
|
|
|
|
300 |
VZ = 300 V |
|
|
|
|
|
LC = 200 μH |
|
|
|
(ns) |
|
|
|
|
|
t, TIME |
200 |
|
|
|
|
|
|
|
|
|
|
|
100 |
|
|
|
|
|
|
TJ = 125°C |
|
|
|
|
|
TJ = 25°C |
|
|
|
|
0 |
|
|
|
|
|
0 |
1 |
2 |
3 |
4 |
IC, COLLECTOR CURRENT (AMPS)
Figure 18. Inductive Switching,
tfi @ IC/IB = 10
6 |
Motorola Bipolar Power Transistor Device Data |

BUL45D2
TYPICAL SWITCHING CHARACTERISTICS
1500 |
|
|
|
|
|
IBoff = IBon |
TJ = 125°C |
|
|
|
VCC = 15 V |
TJ = 25°C |
|
|
|
VZ = 300 V |
|
|
|
1000 |
LC = 200 μH |
|
|
|
t, TIME (ns) |
|
|
|
|
500 |
|
|
|
|
0 |
|
|
|
|
0 |
1 |
2 |
3 |
4 |
IC, COLLECTOR CURRENT (AMPS)
Figure 19. Inductive Switching,
|
|
|
|
|
tc @ IC/IB = 10 |
|
|
|
||
|
450 |
|
|
|
|
|
|
|
|
|
|
|
IBoff = IBon |
|
|
TJ = 125°C |
|
|
|
|
|
|
|
VCC = 15 V |
|
|
TJ = 25°C |
|
|
|
|
|
|
350 |
VZ = 300 V |
|
|
|
|
|
IC = 1 A |
|
|
TIME (ns) |
LC = 200 |
μH |
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|||
250 |
|
|
|
|
|
|
|
|
|
|
, FALL |
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
fi |
|
|
|
|
|
|
|
|
|
|
t |
|
|
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|
|
|
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|
|
|
|
150 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
IC = 2 A |
|
|
50 |
4 |
6 |
|
10 |
12 |
|
|
|
|
|
2 |
8 |
14 |
16 |
18 |
20 |
hFE, FORCED GAIN
Figure 21. Inductive Fall Time
3000 |
|
|
|
|
|
|
|
|
|
|
|
IB1 = IB2 |
|
IBon = IBoff |
|
|
|
|
|
|
|
VCC = 15 V |
|
|
|
|
|
|
|
VZ = 300 V |
|
2000 |
|
|
|
|
|
LC = 200 μH |
|
|
|
|
|
|
|
|
|
(ns) |
|
|
|
|
|
|
|
t, TIME |
IB = 50 mA |
|
|
|
|
|
|
IB = 100 mA |
|
|
|
|
|
||
1000 |
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
IB = 200 mA |
|
|
|
|
|
|
|
|
IB = 500 mA |
|
|
|
|
|
0 |
|
|
IB = 1 A |
|
|
|
|
|
|
|
|
|
3.5 |
4 |
|
0.5 |
1 |
1.5 |
2 |
2.5 |
3 |
IC, COLLECTOR CURRENT (AMPS)
Figure 23. Inductive Storage Time, tsi
|
5 |
|
|
|
|
|
|
TJ = 125°C |
|
IBon = IBoff |
|
|
|
TJ = 25°C |
|
VCC = 15 V |
|
(μs) |
|
|
IC = 1 A |
VZ = 300 V |
|
|
|
LC = 200 μH |
|
||
4 |
|
|
|
||
, STORAGE TIME |
|
|
|
|
|
3 |
|
|
|
|
|
si |
|
|
|
|
|
t |
|
IC = 2 A |
|
|
|
|
|
|
|
|
|
|
2 |
|
|
|
|
|
0 |
5 |
10 |
15 |
20 |
|
|
hFE, FORCED GAIN |
|
|
Figure 20. Inductive Storage Time
|
1400 |
|
|
|
|
|
|
|
|
|
|
1200 |
IBon = IBoff |
|
|
TJ = 125°C |
|
|
|
||
|
VCC = 15 V |
|
|
TJ = 25°C |
|
|
|
|||
(ns) |
|
|
|
|
|
|
||||
1000 |
VZ = 300 V |
|
|
|
|
|
|
|
||
TIME |
LC = 200 μH |
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|||
800 |
|
|
|
|
|
|
|
IC = 2 A |
|
|
, CROSSOVER |
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
||
600 |
|
|
|
|
|
|
|
|
|
|
400 |
|
|
|
|
|
|
|
|
|
|
c |
|
|
|
|
|
|
|
|
|
|
t |
|
|
|
|
|
|
|
|
|
|
|
200 |
|
|
|
|
|
|
|
|
|
|
0 |
|
|
|
|
|
|
|
IC = 1 A |
|
|
2 |
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
hFE, FORCED GAIN
Figure 22. Inductive Crossover Time
|
360 |
|
|
|
|
(ns) |
|
dI/dt = 10 A/μs |
|
|
|
TIME |
|
|
|
|
|
|
TC = 25°C |
|
|
|
|
RECOVERY |
340 |
|
|
|
|
|
|
|
|
|
|
, FORWARD |
320 |
|
|
|
|
|
|
|
|
|
|
fr |
|
|
|
|
|
t |
|
|
|
|
|
|
300 |
|
|
|
|
|
0 |
0.5 |
1 |
1.5 |
2 |
|
|
IF, FORWARD CURRENT (AMP) |
|
Figure 24. Forward Recovery Time tfr
Motorola Bipolar Power Transistor Device Data |
7 |

BUL45D2
TYPICAL SWITCHING CHARACTERISTICS
VCE |
|
dyn 1 μs |
|
|
dyn 3 μs |
0 V |
|
90% IB |
|
1 μs |
|
IB |
μs |
3 |
|
|
TIME |
Figure 25. Dynamic Saturation
Voltage Measurements
10 |
|
|
|
|
|
|
|
|
9 |
IC |
|
|
|
|
90% IC |
|
|
|
|
|
|
|
|
|
||
8 |
|
|
tsi |
|
|
tfi |
|
|
7 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
6 |
|
|
|
|
|
|
10% IC |
|
5 |
Vclamp |
|
10% Vclamp |
|
|
|
|
|
|
|
|
tc |
|
|
|||
4 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3 |
IB |
90% IB1 |
|
|
|
|
|
|
2 |
|
|
|
|
|
|||
|
|
|
|
|
|
|
|
|
1 |
|
|
|
|
|
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|
|
0 |
|
|
|
|
|
|
|
|
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
|
|
|
|
TIME |
|
|
|
|
Figure 26. Inductive Switching Measurements
|
|
VFRM |
VFR (1.1 VF unless |
|
|
|
|
|
otherwise specified) |
|
|
VF |
|
tfr |
|
VF |
|
|
|
|
|
|
|
|
0.1 VF |
|
|
|
|
0 |
|
|
|
|
|
IF |
10% IF |
|
|
|
|
|
|
|
|
|
|
0 |
2 |
4 |
6 |
8 |
10 |
Figure 27. tfr Measurements
8 |
Motorola Bipolar Power Transistor Device Data |

BUL45D2
TYPICAL SWITCHING CHARACTERISTICS
Table 1. Inductive Load Switching Drive Circuit
+15 V |
|
|
|
|
|
|
|
1 μF |
150 Ω |
100 Ω |
|
MTP8P10 |
100 μF |
|
|
|
|
|
|||||
|
3 W |
|
3 W |
|
|
|
|
|
|
|
|
|
|
|
|
MPF930 |
|
|
|
|
MTP8P10 |
RB1 |
VCE |
|
|
|
|
MUR105 |
IB1 |
||
|
MPF930 |
|
|
||||
+10 V |
|
|
Iout |
I |
|||
|
|
|
|
|
|
|
B |
|
|
|
|
|
|
A |
|
50 Ω |
|
|
|
|
MJE210 |
RB2 |
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
COMMON |
|
|
|
150 Ω |
MTP12N10 |
|
V(BR)CEO(sus) |
|
|
|
|
|
|||
|
|
|
|
|
|
||
|
500 |
μ |
F |
3 W |
|
|
L = 10 mH |
|
|
|
|
|
RB2 = ∞ |
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 μF |
VCC = 20 Volts |
|
|
|
|
|
|
|
IC(pk) = 100 mA |
±Voff
IC PEAK
VCE PEAK
IB2
Inductive Switching
L = 200 μH
RB2 = 0
VCC = 15 Volts RB1 selected for desired IB1
RBSOA
L = 500 μH
RB2 = 0
VCC = 15 Volts RB1 selected for desired IB1
TYPICAL CHARACTERISTICS
|
100 |
|
|
|
(AMPS) |
10 |
|
|
1 μs |
|
|
10 μs |
|
|
CURRENT |
|
|
|
|
1 |
5 ms |
1 ms |
SOA |
|
|
|
|||
COLLECTOR |
|
|
EXTENDED |
|
|
DC |
|
||
0.1 |
|
|
||
|
|
|
||
, |
|
|
|
|
C |
|
|
|
|
I |
|
|
|
|
|
0.01 |
|
|
|
|
10 |
100 |
|
1000 |
VCE, COLLECTOR±EMITTER VOLTAGE (VOLTS)
Figure 28. Forward Bias Safe Operating Area
|
6 |
|
|
|
|
|
|
(AMPS) |
5 |
|
|
|
|
TC ≤ 125°C |
|
|
|
|
|
GAIN ≥ |
5 |
||
|
|
|
|
|
LC = 2 mH |
||
CURRENT |
4 |
|
|
|
|
|
|
3 |
|
|
|
|
|
|
|
, COLLECTOR |
|
|
|
|
|
|
|
2 |
|
|
|
|
± 5 V |
|
|
|
|
|
|
|
|
||
1 |
|
|
|
|
|
|
|
C |
|
|
0 V |
|
|
|
|
I |
|
|
±1.5 V |
|
|
||
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
0 |
|
|
500 |
|
|
|
|
200 |
300 |
400 |
600 |
700 |
800 |
VCE, COLLECTOR±EMITTER VOLTAGE (VOLTS)
Figure 29. Reverse Bias Safe Operating Area
Motorola Bipolar Power Transistor Device Data |
9 |

BUL45D2
TYPICAL CHARACTERISTICS
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1 |
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SECOND BREAKDOWN |
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FACTOR |
0.8 |
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DERATING |
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0.6 |
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DERATING |
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THERMAL DERATING |
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0.4 |
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POWER |
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0.2 |
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0 |
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20 |
40 |
60 |
80 |
100 |
120 |
140 |
160 |
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TC, CASE TEMPERATURE (°C) |
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Figure 30. Forward Bias Power Derating
There are two limitations on the power handling ability of a transistor: average junction temperature and second breakdown. Safe operating area curves indicate IC ±VCE limits of the transistor that must be observed for reliable operation; i.e., the transistor must not be subjected to greater dissipation than the curves indicate. The data of Figure 28 is based
on TC = 25°C; TJ(pk) is variable depending on power level. Second breakdown pulse limits are valid for duty cycles to
10% but must be derated when TC > 25°C. Second breakdown limitations do not derate the same as thermal limitations. Allowable current at the voltages shown on Figure 28 may be found at any case temperature by using the appropriate curve on Figure 30.
TJ(pk) may be calculated from the data in Figure 31. At any case temperatures, thermal limitations will reduce the power
that can be handled to values less than the limitations imposed by second breakdown. For inductive loads, high voltage and current must be sustained simultaneously during turn±off with the base to emitter junction reverse biased. The safe level is specified as a reverse biased safe operating area (Figure 29). This rating is verified under clamped conditions so that the device is never subjected to an avalanche mode.
TYPICAL THERMAL RESPONSE
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1 |
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TRANSIENT THERMAL RESISTANCE |
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0.5 |
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0.2 |
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(NORMALIZED) |
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0.1 |
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P(pk) |
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RθJC(t) = r(t) RθJC |
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0.1 |
0.05 |
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RθJC = 2.5°C/W MAX |
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D CURVES APPLY FOR POWER |
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0.02 |
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t1 |
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PULSE TRAIN SHOWN |
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READ TIME AT t1 |
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SINGLE PULSE |
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t |
2 |
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TJ(pk) ± TC = P(pk) RθJC(t) |
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DUTY CYCLE, D = t1/t2 |
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r(t), |
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0.01 |
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0.01 |
0.1 |
1 |
10 |
100 |
1000 |
t, TIME (ms)
Figure 31. Typical Thermal Response (ZθJC(t)) for BUL45D2
10 |
Motorola Bipolar Power Transistor Device Data |