TDE1798DP View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TDE1798DP

0.5A INTELLIGENT POWER SWITCH

STMicroelectronics 

®

TDE1798

0.5A INTELLIGENT POWER SWITCH

HIGH OUTPUT CURRENT 500mA

SHORT-CIRCUIT PROTECTION UP TO

VCC = +35V

INTERNAL THERMAL PROTECTION WITH

EXTERNAL RESET AND SYNCRONIZATION

CAPABILITY

OPEN GROUND PROTECTION

OUTPUT VOLTAGE CAN BE LOWER THAN

GROUND FOR FAST INDUCTIVE LOAD DE-

MAGNETIZATION

DIFFERENTIAL INPUTS FOR ANY LOGIC

SYSTEM COMPATIBILITY

INPUT VOLTAGE CAN BE HIGHER THAN VCC

LARGE SUPPLY VOLTAGE RANGE FROM

6V TO 35V

SINK AND SOURCE ALARM OUTPUTS

NO NEED FOR EXTERNAL CLAMPING DI-

ODE FOR DEMAGNETIZATION ENERGY UP

TO 150mJ

SEVERAL DEVICES CAN BE CONNECTED

IN PARALLEL

DESCRIPTION

The TDE1798 is an interface circuit delivering

high currents and capable of driving any type of

loads.

The output is protected from short-circuits with

the positive supply or ground. In addition thermal

shut down is provided to keep the IC from over-

heating. If internal dissipation becomes too high,

PIN CONNECTION (Top view)

Minidip

ORDERING NUMBER: TDE1798DP

the driver will shut down to prevent excessive

heating. The output stays null after the overload is

off, if the reset input is low. If high, the output will

alternatively switch on and off until the overload is

removed.

Higher current can be obtained by paralleling the

outputs of several devices. In this case, the de-

vices can be reactivated simultaneously after an

overload if their reset input are connected in par-

allel.

The device operates over a wide range of supply

voltages from standard ±15 operational amplifier

supplies to the single ±6V or +35V used for indus-

trial electronic systems. Input voltage can be

higher than the VCC. The output is low in open

ground conditions.

September 2003

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