BU941 Datasheet, PDF (3/4 Pages) STMicroelectronics – HIGH VOLTAGE IGNITION COIL DRIVER NPN POWER DARLINGTON

UTC BU941
NPN EPITAXIAL SILICON TRANSISTOR
FUNCTION TEST CIRCUIT
DRIVER AND
CURRENT
LIMITING
CIRCUIT
24V
L=7mH
Vz
T.U.T.
100Ω
0.22 μF
0.2Ω
INPUT
SIGNAL
16.6ms
11.6ms
0
BASE
CURRENT
0
COLLECTOR
CURRENT
0
COLLECTOR
EMITTER
VOLTAGE ₀
24V
IB=0.3A
IC=8A
Vclamp
8 VCE=2V
6
4
DC Current Gain
2
10³
8
6
4 ^125℃
2
10²
-40℃
8
6
Tc=25℃
4
2
10¹
10^-1
2
4 6 8₁
2
4 68
Collector Current, IC(A)
Collector-emitter Saturation Voltage
4.0
3.5
2.5
10A
86 ₄₂
1.5
1
0.5
0
50
100
150
200
Base Current, IB (mA)
8 _VCE=10V
6
4
DC Current Gain
2
10³
8
6 _125℃
4
2
-40℃
10²
8
Tc=25℃
6
4
2
10¹
2
4 68
2
10^-1
1
4 68
Collector Current, IC (A)
Collctor-emitter Saturation Voltage
1.4 ^hFE=100
1.2
1
-40℃
0.8
0.6
Tc=25℃
125℃
0.4
0.2
0
1
2
4 6 8 10
12
Collector Current, Ic (mA)
UTC UNISONIC TECHNOLOGIES CO. LTD ³
QW-R203-025,A