HIGH VOLTAGE IGNITION COIL DRIVER POWER DARLINGTON VERY RUGGED BI
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BU941Z/BU941ZP BU941ZPFI
HIGH VOLTAGE IGNITION COIL DRIVER POWER DARLINGTON
VERY RUGGED BIPOLAR TECHNOLOGY BUILT CLAMPING ZENER HIGH OPERATING JUNCTION TEMPERATURE WIDE RANGE PACKAGES
TO-3
APPLICATIONS HIGH RUGGEDNESS ELECTRONIC IGNITIONS
TO-218
ISOWATT218
INTERNAL SCHEMATIC DIAGRAM
TO-3 Emitter: Base: pin1 Collector:
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter BU941Z Collector-Emitter Voltage Emitter-Base Voltage Collector Current Collector Peak Current Base Current Base Peak Current Total Dissipation Storage emperature Max. perating Junction Temperature
Value BU941Z BUB941ZPFI
January 2000
BU941Z/BU941ZP/BU941ZPFI
THERMAL DATA
TO-3 hj-ca Thermal Resistance Junct ion-case 0.97 TO-218 0.97 ISOW T218
ELECTRICAL CHARACTERISTICS (Tcase unless otherwise specified)
Symb CE(sat Parameter Collector Cut-off Current Emitter Cut-off Current Clamping Voltage Collector-Emitter Saturation Voltage Base-Emitt Saturation Voltage Current Gain Test Cond ition
Min.
Max.
BE(s
Diode orward Voltage Functional (see fig.
INDUCTIVE Storage Time Fall Time (see fig.
Pulsed: Pulse duration duty cycle
Safe Operating Area
Current Gain
BU941Z/BU941ZP/BU941ZPFI
Current Gain Collector-emitter Saturation Voltage
Collector-emitter Saturation Voltage
Base-emitter Saturation Voltage
Base-emitter Saturation Voltage
Collector-emitter Saturation Voltage
BU941Z/BU941ZP/BU941ZPFI
FIGURE Functional Test Circuit FIGURE Functional Test Waveforms
FIGURE Switching Time Test Circuit
BU941Z/BU941ZP/BU941ZPFI
TO-3 MECHANICAL DATA
MIN. 11.00 0.97 1.50 8.32 19.00 10.70 16.50 25.00 4.00 38.50 30.00 TYP. MAX. 13.10 1.15 1.65 8.92 20.00 11.10 17.20 26.00 4.09 39.30 30.30 MIN. 0.433 0.038 0.059 0.327 0.748 0.421 0.649 0.984 0.157 1.515 1.187 inch TYP. MAX. 0.516 0.045 0.065 0.351 0.787 0.437 0.677 1.023 0.161 1.547 1.193
DIM.
P003F
BU941Z/BU941ZP/BU941ZPFI
TO-218 (SOT-93) MECHANICAL DATA
MIN. 3.95 12.2 0.157 10.8 14.7 4.15 0.155 1.220 0.480 0.161 1.17 0.78 11.1 15.2 16.2 0.019 0.043 0.425 0.578 0.708 0.163 TYP. MAX. 1.37 MIN. 0.185 0.046 0.098 0.030 0.051 0.437 0.598 0.637 inch TYP. MAX. 0.193 0.054
DIM.
P025A
BU941Z/BU941ZP/BU941ZPFI
ISOWATT218 MECHANICAL DATA
DIM. TYP. inch TYP.
MIN. 5.35 3.30 2.90 1.88 0.75 1.05 1.50 1.90 10.80 15.80 20.80 19.10 22.80 40.50 4.85 20.25
MAX. 5.65 3.80 3.10 2.08 0.95 1.25 1.70 2.10 11.20 16.20 21.20 19.90 23.60 42.50 5.25 20.75
MIN. 0.211 0.130 0.114 0.074 0.030 0.041 0.059 0.075 0.425 0.622 0.819 0.752 0.898 1.594 0.191 0.797 0.083
MAX. 0.222 0.150 0.122 0.082 0.037 0.049 0.067 0.083 0.441 0.638 0.835 0.783 0.929 1.673 0.207 0.817 0.091
0.354
0.138
0.181 0.146
Weight (typ.) Maximum Torque (applied mounting flange) Recommended Maximum: side dissipator must flat within
P025C/A
BU941Z/BU941ZP/BU941ZPFI
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