VB027SP Datasheet, PDF (1/7 Pages) STMicroelectronics – HIGH VOLTAGE IGNITION COIL DRIVER POWER I.C.

®
VB027SP
HIGH VOLTAGE IGNITION COIL DRIVER
POWER I.C.
TYPE
VB027SP
V_cl
300V
I_cl
I_d(on)
9A
130mA
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 VB027SP is a high voltage power integrated
circuit made using the STMicroelectronics
VIPower™ technology, with vertical current flow
power darlington and logic level compatible
driving circuit. Built-in protection circuit for coil
current limiting and collector voltage clamping
allows the device to be used as smart, high
10
1
PowerSO-10™
voltage, high current interface in advanced
electronic ignition system.
BLOCK DIAGRAM
V_d
HV_C
INPUT
DRIVER
FLAG
OVERTEMP.
PROTECTION
FLAG 1
+
-
-
FLAG 2
+
QUASI PROP.
BASE CURRENT
REFERENCE
R_SENSE
June 1999
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