CS452/453
2.4A/4.4A Injector Solenoid Driver
Description
Features
The CS452/453 is a monolithic inte-
the load current by a 4:1 ratio and
operates as a constant current
source. This condition holds the
injector open and reduces system
Microprocessor
Compatible Inputs
■
grated circuit designed for medium
current solenoid driver applica-
tions. Its typical function is to sup-
■ On-Chip Power Device
2.4A Peak, Typical CS-452
4.4A Peak, Typical CS453
ply full battery voltage to fuel injec- power dissipation.
tor(s) for rapid current rise, in order
to produce positive injector open-
ing.
Other solenoid or relay applications
can be equally well served by the
CS452/453. Two high impedance
inputs are provided which permit a
variety of control options and can
be driven by TTL or CMOS logic.
■ Low Thermal Resistance
To Grounded Tab
When load current reaches a preset
level (2.4A for CS452, or 4.4A for
CS453), the injector driver reduces
■ 60V Peak Transient
Voltage
Absolute Maximum Ratings
■ Low Saturation Voltage
■ Operates Over a 4.5V to
Power Supply Voltage (VCC) .........................................................................24V
VIN..........................................................................................................-6.0 to 24V
Control ..................................................................................................-6.0 to 24V
Peak Transient Voltage (46V Load Dump)..................................................60V
Internal Regulator Current.........................................................................50mA
Junction Temperature Range....................................................-40¡C to +150¡C
Operating Temperature Range (Tab Temperature)..............-40¡C to +125¡C
Storage Temperature Range .....................................................-65¡C to +150¡C
Lead Temperature Soldering
24V Battery Range
Wave Solder (through hole styles only)...10 sec. max, 260¡C peak
Package Options
Typical Application Diagram
5 Lead TO-220
Tab (Gnd)
300W
19kW
VBAT
4.5V to 24V
(60V Transient)
IOUT
V
CC
VIN
OUT
V
IN
Injector
CS452/453
CONTROL
40VZ (max)
1 VIN
2 CONTROL
3 Gnd
1
Gnd
1kW
4 OUT
5 VCC
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: info@cherry-semi.com
Web Site: www.cherry-semi.com
Rev. 12/18/97
1
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Company