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3–231
Motorola Bipolar Power Transistor Device Data
The BU323A is a monolithic darlington transistor designed for automotive ignition,
switching regulator and motor control applications.
• VCE Sat Specified at –40_C = 2.0 V Max. at IC = 6 A.
• Photoglass Passivation for Reliability and Stability.
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Collector–Emitter Voltage
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Collector Current — Continuous
Peak (1)
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Base Current — Continuous
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Total Power Dissipation@ TC = 25_C
@ TC = 100_C
Derate above 25_C
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Operating and Storage Junction
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Thermal Resistance, Junction to Case
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Maximum Lead Temperature for Soldering
Purposes: 1/8″ from Case for 5 Seconds
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_
C
(1) Pulse Test: Pulse Width = 5.0 ms, Duty Cycle v 10%.
SEMICONDUCTOR TECHNICAL DATA
Order this document
by BU323A/D
16 AMPERE PEAK
POWER TRANSISTOR
DARLINGTON NPN
SILICON
400 VOLTS
175 WATTS
CASE 1–07
TO–204AA
(TO–3)
COLLECTOR
EMITTER
BASE
≈
1 k≈ 30
REV 7
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BU323A
3–232
Motorola Bipolar Power Transistor Device Data
ELECTRICAL CHARACTERISTICS (T
C
= 25_C unless otherwise noted)
Collector–Emitter Sustaining Voltage (Figure 1)
L = 10 mH
(IC = 200 mAdc, IB = 0, V
clamp
= Rated V
CEO
)
Collector–Emitter sustaining Voltage (Figure 1)
(IC = 3 A, RBE = 100 Ohms, L = 500 µH)
Unclamped
Collector Cutoff Current (Rated V
CER
, RBE = 100 Ohms)
Collector Cutoff Current (Rated V
CBO
, IE = 0)
Emitter Cutoff Current (VEB = 6 Vdc, IC = 0)
DC Current Gain
(IC = 3 Adc, VCE = 6 Vdc)
(IC = 6 Adc, VCE = 6 Vdc)
(IC = 10 Adc, VCE = 6 Vdc)
Collector–Emitter Saturation Voltage
(IC = 3 Adc, IB = 60 mAdc)
(IC = 6 Adc, IB = 120 mAdc)
(IC = 10 Adc, IB = 300 mAdc)
(IC = 6 Adc, IB = 120 mAdc, TC = –40_C)
Base–Emitter Saturation Voltage
(IC = 6 Adc, IB = 120 mAdc)
(IC = 10 Adc, IB = 300 mAdc)
(IC = 6 Adc, IB = 120 mAdc, TC = –40_C)
Base–Emitter On Voltage (IC = 10 Adc, VCE = 6 Vdc)
Diode Forward Voltage (IF = 10 Adc)
Output Capacitance (VCB = 10 Vdc, IE = 0, f
test
= 100 kHz)
SWITCHING CHARACTERISTICS
(VCC – 12 Vdc, IC = 6 Adc,
IB1 = IB2 = 0.3 Adc) Fig. 2
Second Breakdown Collector Current with
Base–Forward Biased
Pulsed Energy Test (See Figure 12)
mJ
1
Pulse Test: Pulse Width = 300 µs, Duty Cycle = 2%.
0 V
t
1
20 ms
*
470
≈
1K≈ 30
L
47
1N4001
BC337
V
CEO
V
CER
100
B
TUT
C
*
E
V
clamp
UNCLAMPED
CLAMPED
* Adjust t1 such that
* IC reaches Required
* value.
VCC = 16 Vdc
f
test
= 200 Hz
PULSE WIDTH = 1 ms
≈
1K≈ 30
B
TUT
C
E
40
51 100
IB = 0.3 Adc
VCC = 12 Vdc
2
Ω
/20 W
IC = 6 Adc
≈
15 Vdc
0 Vdc
1N4001
Figure 1. Sustaining Voltage Test Circuit Figure 2. Switching Times Test Circuit
(V