VB024 Datasheet, PDF (1/8 Pages) STMicroelectronics – HIGH VOLTAGE IGNITION COIL DRIVER POWER IC

VB024
HIGH VOLTAGE IGNITION COIL DRIVER
POWER IC
TYPE
VB024
VCL
400 V
IC
Id
8A
100 mA
s PRIMARY COIL CURRENT INTERNALLY SET
s PRIMARY COIL VOLTAGE INTERNALLY SET
s AUTOMATIC SHUT-OFF AT MAX CURRENT
s LOGIC LEVEL COMPATIBLE INPUT
s DIGITAL SIGNAL FEEDBACK TO INDICATE
A PREDETERMINED CURRENT LEVEL
DESCRIPTION
The VB024 is a high voltage integrated circuit
made using SGS-THOMSON VIPower thecnology,
with vertical current flow power darlington and logic
level compatible driving circuit.
The device performs the following functions:
power stage for driving the primary side of the
ignition coil, digital signal feedback to the control
IC to indicate a predetermined current level,
automatic shut-off at maximum current, self
clamping for voltage flyback and logic level input.
ISOWATT7
BLOCK DIAGRAM
September 1993
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