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BUL128FP
HIGH VOLTAGE FAST-SWITCHING NPN POWER TRANSISTOR
BUL128FPHIGH VOLTAGE FAST-SWITCHING
NPN POWER TRANSISTOR STMicroelectronics PREFERRED
SALESTYPE NPN TRANSISTOR HIGH VOLTAGE CAPABILITY LOW SPREAD OF DYNAMIC PARAMETERS MINIMUM LOT-TO-LOT SPREAD FOR
RELIABLE OPERATION VERY HIGH SWITCHING SPEED
APPLICATIONS: ELECTRONIC BALLASTS FOR
FLUORESCENT LIGHTING
DESCRIPTION The device is manufactured using high voltage
Multi Epitaxial Planar technology for high
switching speeds and medium voltage capability.
It uses a Cellular Emitter structure with planar
edge termination to enhance switching speeds
while maintaining the wide RBSOA.
The device is designed for use in lighting
applications and low cost switch-mode power
supplies.
September 2001
ABSOLUTE MAXIMUM RATINGS1/7
THERMAL DATA
ELECTRICAL CHARACTERISTICS (Tcase = 25 o C unless otherwise specified)
∗ Pulsed: Pulse duration = 300 μs, duty cycle 1.5 %
BUL128FP2/7
Safe Operating Areas
DC Current Gain
Collector Emitter Saturation Voltage
Derating Curve
DC Current Gain
Base Emitter Saturation Voltage
BUL128FP3/7
Inductive Fall Time Inductive Storage Time
Resistive Fall Time Resistive Load Storage Time
Reverse Biased SOA
BUL128FP4/7
Figure 1: Inductive Load Switching Test Circuit.
Figure 2: Resistive Load Switching Test Circuit.
BUL128FP5/7
BUL128FP6/7