© Semiconductor Components Industries, LLC, 2001

March, 2001 – Rev. 4

1

Publication Order Number:

CS8312/D

CS8312

IGBT Ignition Predriver with

Dynamic Current Regulation

The CS8312 is a bipolar microprocessor interface IC designed to

drive an IGBT (or logic level MOSFETs) powering large inductive

loads in harsh operating environments. The IC’s dynamic current

limit function lets the microprocessor adjust the current limit threshold

to the real time needs of the system.

CLI, the current limit input, sets the current limit for the IGBT high

or low as directed by the system microprocessor. CLI also raises and

lowers the threshold on the diagnostic FLAG output signal. The

FLAG output signals the microprocessor when the current level

approaches current limit on the IGBT. The CTRL input enables the

FLAG function.

Features

Figure 1. Block Diagram

CTRL

FLAG

OUT

SENSE+

SENSE–

CLI

GND

Control

Logic

Latch

Gate

Driver

5.0 V

http://onsemi.com

A

= Assembly Location

WL, L

= Wafer Lot

YY, Y

= Year

WW, W = Work Week

MARKING

DIAGRAMS

DIP–8

N SUFFIX

CASE 626

1

8

Device

Package

Shipping

ORDERING INFORMATION

CS8312YN8

DIP–8

50 Units/Rail

1

8

CS8312YN8

AWL

YYWW

OUT

GND

CLI

SENSE–

CTRL

SENSE+

FLAG

1

PIN CONNECTIONS

SO–8

D SUFFIX

CASE 751

1

CS831

ALYW2

8

1

8

CS8312YD8

SO–8

95 Units/Rail

CS8312YDR8

SO–8

2500 Tape & Reel