CS8312 Cherry Semiconductor Corporation, CS8312 Datasheet

CS8312

Manufacturer Part Number

CS8312

Description

IGBT Ignition Predriver with Dynamic Current Regulation

Manufacturer

Cherry Semiconductor Corporation

Datasheet

1.CS8312.pdf (5 pages)

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Rev. 4/7/97

Supply Voltage.................................................................................-0.3V to +12V

Digital Input Currents....................................................................................2mA

Internal Power Dissipation (T

Junction Temperature Range.....................................................-40¡C to +150¡C

Storage Temperature Range ......................................................-55¡C to +165¡C

Lead Temperature Soldering

Electrostatic Discharge (Human Body Model) ............................................2kV

The CS8312 is a bipolar micropro-

cessor interface IC designed to

drive an IGBT (or logic level

MOSFETs) powering large induc-

tive loads in harsh operating envi-

ronments. The ICÕs dynamic cur-

rent limit function lets the micro-

processor adjust the current limit

threshold to the real time needs of

the system.

CTRL

FLAG

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

Reflow (SMD styles only).............60 sec. max above 183¡C, 230¡C peak

with Dynamic Current Regulation

Gnd

Latch

Absolute Maximum Ratings

IGBT Ignition Predriver

Description

Block Diagram

= 25¡C) .................................................700mW

Control

Logic

CLI

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 diag-

nostic FLAG output signal. The

FLAG output signals the micropro-

cessor when the current level

approaches current limit on the

IGBT. The CTRL input enables the

FLAG function.

CS8312

Driver

Gate

SENSEÐ

REF

OUT

SENSE+

2000 South County Trail, East Greenwich, RI 02818

SENSE+

SENSEÐ

Tel: (401)885-3600 Fax: (401)885-5786

Cherry Semiconductor Corporation

FLAG

Web Site: www.cherry-semi.com

Gnd

µP Compatible Inputs

Adjustable Current Limit

Thresholds

External Sense Resistor

Flag Signal to Indicate

Output Status

Email: info@cherry-semi.com

Package Options

8L PDIP & SO Narrow

Features

Company

CTRL

CLI

OUT

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