HIGH VOLTAGE IGNITION COIL DRIVER POWER DARLINGTON DARLINGTON INT
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BU941/BU941P BU941PFI
HIGH VOLTAGE IGNITION COIL DRIVER POWER DARLINGTON
DARLINGTON INTEGRATED ANTIPARALLEL COLLECTOR-EMITTER DIODE VERY RUGGED BIPOLAR TECHNOLOGY 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 BU941 Collector-Emitter Voltage Collector-Emitter Voltage Emitter-Base Voltage Collector Current Collector Peak Current Base Current Base Peak Current Total Dissipation Storage Temperature Max. Operating Junction Temperature Value BU941P BUB941PFI
Unit
December 1999
BU941 BU941P BUB941PFI
THERMAL DATA
TO-3 thj-case Thermal Resistance Junction-case 0.97 TO-218 0.97 ISOWATT218
ELECTRICAL CHARACTERISTICS (Tcase unless otherwise specified)
Symbol Parameter Collector Cut-off Current Collector Cut-off Current Emitter Cut-off Current Test Conditions Clamp (See FIG.4) Min. Typ. Max. Unit
CEO(sus) Collector-Emitter Sustaining Voltage CE(sat) Collector-Emitter Saturation Voltage Base-Emitter Saturation Voltage Current Gain
BE(sat)
Diode Forward Voltage Functional Test (see fig. Clamp Clamp
INDUCTIVE LOAD Storage Time Fall Time (see fig.
Pulsed: Pulse duration duty cycle
Safe Operating Area
Current Gain
BU941 BU941P BUB941PFI
Current Gain Collector-emitter Saturation Voltage
Collector-emitter Saturation Voltage
Base-emitter Saturation Voltage
Switching Time Inductive Load (see fig.3)
BU941 BU941P BUB941PFI
FIGURE Functional Test Circuit FIGURE Functional Test Waveforms
FIGURE Switching Time Test Circuit
FIGURE Sustaining Voltage Test Circuit
BU941 BU941P BUB941PFI
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
BU941 BU941P BUB941PFI
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
BU941 BU941P BUB941PFI
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
BU941 BU941P BUB941PFI
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