廬
VB027
/
VB027(011Y) / VB027(012Y)
HIGH VOLTAGE IGNITION COIL DRIVER
POWER I.C.
TYPE
VB027
VB027(011Y)
VB027(012Y)
s
V
cl(min)
300V
I
cl(max)
9A
I
d(on)max
130mA
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 VB027, VB027(011Y), VB027(012Y) is a high
voltage power integrated circuit made using the
STMicroelectronics VIPower鈩?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 voltage, high current interface in advanced
electronic ignition system.
BLOCK DIAGRAM
V
d
PENTAWATT HV PENTAWATT HV (011Y)
PENTAWATT HV (012Y)
ORDER CODES:
PENTAWATT HV
VB027
PENTAWATT HV (011Y)
VB027(011Y)
PENTAWATT HV (012Y)
VB027(012Y)
HV
C
INPUT
DRIVER
OVERTEMP.
PROTECTION
FLAG 1
QUASI PROP.
BASE CURRENT
+
-
-
R
SENSE
FLAG
FLAG 2
+
REFERENCE
GND
June 1999
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