TD230 データシートの表示（PDF） - STMicroelectronics

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TD230

ELECTRONIC CIRCUIT BREAKER

STMicroelectronics 

®

TD230

ELECTRONIC CIRCUIT BREAKER

. TWO N-CHANNEL MOSFETs CONTROL AND

DUAL INDEPENDANT CURRENT SUPERVI-

SION FOR OVER CURRENT PROTECTION

. DUAL SUPPLY OPERATION

. FROM +3/-5 TO +18/-18V OPERATING VOLT-

AGE

. STEP-UPCONVERTER : VCC +13.5V OUTPUT

VOLTAGE

. ADJUSTABLE PROTECTION MODE

(CTRIP1/2)

. INHIBIT FUNCTION

. SHUTDOWN OUTPUT STATUS

. FEW EXTERNAL COMPONENTS

N

DIP16

(Plastic Package)

D

SO16

(Plastic Micropackage)

DESCRIPTION

The TD230 is designed to control two N-channel

MOSFETs used as power switches in circuit break-

ing applications.

Its current supervision and immediate action on the

switches ensure high security for the boards and

the supplies thus protected against short-circuit or

over current.

In case of short-circuit or over current detection,the

TD230 immediately switches off the corresponding

MOSFET, thus disconnecting the board from the

supply. After several automatic restart attempts, a

definitive shutdown of the circuit is done if the

shortcircuit or over current persists over an exter-

nally adjustable time, until the TD230 is reset by

temporary INHIBIT signal or temporary switching

off of the power supply (hot disconnection/recon-

nection).

If the board is disconnected from the positive sup-

ply by the TD230 it will automatically be disjoncted

from the negative supply too.

TD230 integrates an induction step-up converter

that provides 13.5V above the positive rail to drive

the high side MOSFET.

ORDER CODES

Part Number

TD230I

Temperature

Range

-40oC, +125oC

PIN CONNECTIONS

Package

N

D

•

•

P Vcc

1

LBOOS T 2

CBOOST 3

OS CGND 4

P M1

5

GND

6

P M2

7

NVcc

8

16 REF1

15 GC1

14 S ENSP

13 INHIBIT

12 SHUTDOWN

11 SENS N

10 GC2

9 REF2

October 1998

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