VB027ASP

HIGH VOLTAGE IGNITION COIL DRIVER

POWER IC

®

June 1999

1

10

Power SO-10

TM

BLOCK DIAGRAM

TYPE

Il im

VB027ASP

345 V

9.5 A

160 mA

s

PRIMARY COIL VOLTAGE INTERNALLY SET

s

COIL CURRENT LIMIT INTERNALLY SET

s

LOGIC LEVEL COMPATIBLE INPUT

s

DRIVING CURRENT QUASI

PROPORTIONAL TO COLLECTOR

CURRENT

s

DOUBLE FLAG-ON COIL CURRENT

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.

* Pins 1-5 = Power GND, Pin 6 signal GND. Pin 6 must be connected to pins 1-5 externally.

1/8