UTC BU941
NPN EPITAXIAL SILICON TRANSISTOR
NPN POWER DARLINGTON HIGH VOLTAGE IGNITION COIL DRIVER
FEATURES
*NPN darlington *Integrated antiparallel collector-emitter diode
1
APPLICATIONS
* High ruggedness electric ignitions
TO-220
1: BASE 2:COLLECTOR 3: EMITTER
INTERNAL SCHEMATIC DIAGRAM
C (2)
B (1)
(3) E
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Collector-Emitter Voltage Collector-Emitter Voltage Emitter-Base Voltage Collector Current Collector Peak Current Base Current Base Peak Current Total Dissipation (Tc=25°C) Storage Temperature Operating Junction Temperature
SYMBOL
VCES VCEO VEBO Ic IcM IB IBM Ptot Tstg Tj
RATINGS
500 400 5 15 30 1 5 150 -65 ~ 175 175
UNIT
V V V A A A W W °C °C
UTC
UNISONIC TECHNOLOGIES
CO. LTD
1
QW-R203-025,A
UTC BU941
PARAMETER
NPN EPITAXIAL SILICON TRANSISTOR
SYMBOL TEST CONDITIONS MIN
400 100 0.5 100 0.5 20 1.6 1.8 2 2.2 2.5 2.7 300 2.5 10 15 0.5 V A μs
ELECTRICAL CHARACTERISTICS (Tc=25°C, unless otherwise specified)
TYP MAX UNIT
V μA mA μA mA mA V Collector-Emitter Sustaining Voltage Ic=100mA, Vclamp=400V, L=10mH VCEO(sus)* (see fig. 1) Collector Cut-off Current VCE=500V, VBE=0 ICES VCE=500V, VBE=0, Tj=125°C Collector Cut-off Current VCE=450V, IB=0 ICEO VCE=450V, IB=0, Tj=125°C Emitter Cut-off Current IEBO VEB=5V, Ic=0 Collector-Emitter Saturation Voltage IC=8A, IB=100mA VCE(sat)* IC=10A, IB=250mA IC=12A, IB=300mA Base-Emitter Saturation Voltage IC=8A, IB=100mA VBE(sat)* IC=10A, IB=250mA IC=12A, IB=300mA DC Current Gain HFE* VCE=10V, Ic=5A, Diode Forward Voltage VF IF=10A Functional Test Vcc=24V, Vclamp=400V, L=7mH (see Functional Test Circuit) Vcc=12V, Vclamp=300V, VBE=0, Fall Time tf RBE=47Ω, L=7mH, Ic=7A, IB=70mA Storage Time ts (see fig.2) *Pulsed: Pulse duration=300μs, duty cycle 1.5%
V
Vcc=16V 0V
t1 20ms
VD
12V
C B R1 T.U.T. R2 E Vclamp Vin
7mH
T.U.T. 47Ω
Vclamp
Fig. 1 Sustaining Voltage Test Circuit
Fig. 2 Switching Time Test Circuit
UTC
UNISONIC TECHNOLOGIES
CO. LTD
2
QW-R203-025,A
UTC BU941
NPN EPITAXIAL SILICON TRANSISTOR
24V L=7mH Vz INPUT SIGNAL 0 BASE CURRENT 0 COLLECTOR CURRENT 0 0.2Ω COLLECTOR EMITTER VOLTAGE Vclamp 24V 0 IC=8A IB=0.3A 16.6ms 11.6ms
FUNCTION TEST CIRCUIT
DRIVER AND CURRENT LIMITING CIRCUIT
T.U.T. 100Ω
0.22 μF
DC Current Gain
8 6 4
DC Current Gain
8 6 4 2
VCE=2V
VCE=10V
DC Current Gain, hFE
DC Current Gain, Hfe
2
103
103
8 6 4 2
8 6
4 2
125℃
125℃ -40℃ Tc=25℃
102
-40℃ Tc=25℃
102
8 6 4 2
8 6 4
2
101 10-1
2
1 Collector Current, IC(A)
4
6
8
2
4
6
8
101 10-1
2
1 Collector Current, IC (A)
4
6
8
2
4
6
8
Collector-emitter Saturation Voltage, VCE(sat) (V)
4.0
Collector-emitter Saturation Voltage, VCE(sat) (V)
Collector-emitter Saturation Voltage
Collctor-emitter Saturation Voltage 1.4 1.2 1 0.8 0.6 0.4 0.2 0 1 2 4 6 8 10 12 125℃
Tc=25℃
hFE=100
3.5
-40℃
2.5 10A 8 1.5 6 4 2
0.5 0
1 50 100 150 Base Current, IB (mA) 200
Collector Current, Ic (mA)
UTC
UNISONIC TECHNOLOGIES
CO. LTD
3
QW-R203-025,A
UTC BU941
Base-emitter Saturation Voltage, VBE(sat) (V) 2.4 2.2 hFE=100
NPN EPITAXIAL SILICON TRANSISTOR
Switching Time Vclamp=300V, VCC=12V, hFE=100, RBE=47Ω, L=7mH, Tc=25℃ Switching Time, μs 10 ts
Base-emitter Saturation Voltage
2 1.8 -40℃ 1.6 Tc=25℃ 1.4 1.2 0 1 125℃
1 tf
2
4 6 8 10 Collector Current, IC(A)
12
10-1 1
2
4 6 8 10 Collector current, IC(A)
12
Safe Operating Area Ic MAX PULSED
PULSE OPERATION *
4 2
10μs Ic MAX CONT 100
μs
Collector Current, Ic (A)
1018
6 4 2
1008
6 4 2
1ms
10ms
10-1
8 6 4 2
* For single non repelitive pulse
2
D.C.
4 68 2 4 68
10-2 100
101 102 Collector-Emitter Voltage, VCE (V)
4
68
2
UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
UTC
UNISONIC TECHNOLOGIES
CO. LTD
4
QW-R203-025,A