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Features

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Microprocessor

Compatible Inputs

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On-Chip Power Device

2.4A Peak, Typical CS-452

4.4A Peak, Typical CS453

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Low Thermal Resistance

To Grounded Tab

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60V Peak Transient

Voltage

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Low Saturation Voltage

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Operates Over a 4.5V to

24V Battery Range

Package Options

5 Lead TO-220

Tab (Gnd)

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2.4A/4.4A Injector Solenoid Driver

CS452/453

Description

Typical Application Diagram

Absolute Maximum Ratings

2 CONTROL

3 Gnd

4 OUT

December, 2001 - Rev. 2

ON Semiconductor

2000 South County Trail, East Greenwich, RI 02818

Tel: (401)885–3600 Fax: (401)885–5786

N. American Technical Support: 800-282-9855

Web Site: www.cherry–semi.com

The CS452/453 is a monolithic inte-

grated circuit designed for medium

current solenoid driver applica-

tions. Its typical function is to sup-

ply full battery voltage to fuel injec-

tor(s) for rapid current rise, in order

to produce positive injector open-

ing.

When load current reaches a preset

level (2.4A for CS452, or 4.4A for

CS453), the injector driver reduces

the load current by a 4:1 ratio and

operates as a constant current

source. This condition holds the

injector open and reduces system

power dissipation.

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.

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

Wave Solder (through hole styles only)...10 sec. max, 260°C peak

CS452/453

4.5V to 24V

(60V Transient)

Injector

OUT

300

Ω

Gnd

CONTROL

1k

Ω

19k

Ω