© Semiconductor Components Industries, LLC, 2000

November, 2000 – Rev. 6

1

Publication Order Number:

CS4124/D

CS4124

High Side PWM FET

Controller

The CS4124 is a monolithic integrated circuit designed primarily to

control the rotor speed of permanent magnet, direct current (DC)

brush motors. It drives the gate of an N channel power MOSFET or

IGBT with a user–adjustable, fixed frequency, variable duty cycle,

pulse width modulated (PWM) signal. The CS4124 can also be used to

control other loads such as incandescent bulbs and solenoids.

Inductive current from the motor or solenoid is recirculated through an

external diode.

The CS4124 accepts a DC level input signal of 0 to 5.0 V to control

the pulse width of the output signal. This signal can be generated by a

potentiometer referenced to the on–chip 5.0 V linear regulator, or a

filtered 0% to 100% PWM signal also referenced to the 5.0 V

regulator.

The IC is placed in a sleep state by pulling the CTL lead below 0.5 V.

In this mode everything on the chip is shutdown except for the on–chip

regulator and the overall current draw is less than 275

µA. There are a

number of on–chip diagnostics that look for potential failure modes

and can disable the external power MOSFET.

Features

http://onsemi.com

A

= Assembly Location

WL, L

= Wafer Lot

YY, Y

= Year

WW, W

= Work Week

PIN CONNECTION AND

MARKING DIAGRAM

16

1

SNI

PGND

PMP

CTL

FLT

INH

BOOST

GND

OUTPUT

Device

Package

Shipping

ORDERING INFORMATION*

CS4124YN16

DIP–16

25 Units/Rail

DIP–16

N SUFFIX

CASE 648

1

16

* Contact your local sales representative for 16-lead SOIC wide package.