廬
VB027ASP
HIGH VOLTAGE IGNITION COIL DRIVER
POWER IC
TYPE
VB027ASP
s
s
s
s
V
clamp
345 V
I
cl
9.5 A
Il im
160 mA
s
PRIMARY COIL VOLTAGE INTERNALLY SET
COIL CURRENT LIMIT INTERNALLY SET
LOGIC LEVEL COMPATIBLE INPUT
DRIVING CURRENT QUASI
PROPORTIONAL TO COLLECTOR
CURRENT
DOUBLE FLAG-ON COIL CURRENT
10
DESCRIPTION
The VB027ASP is a high voltage power
integrated circuits made using STMicroelectronics
Vertical Intelligent Power Technology, with
vertical current flow power darlington and logic
level compatible driving circuits.
Built-in protection circuits for coil current limiting
and collector voltage clamping allows the
VB027ASP to be used as a smart, high voltage,
high current interface in advanced electronic
ignition systems.
1
Power SO-10
TM
BLOCK DIAGRAM
* Pins 1-5 = Power GND, Pin 6 signal GND. Pin 6 must be connected to pins 1-5 externally.
June 1999
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