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E-TDE1707BFP

INTELLIGENT POWER SWITCH

STMicroelectronics 

®

TDE1707BFP

INTELLIGENT POWER SWITCH

PRODUCT PREVIEW

0.5A OUTPUT CURRENT

LOW SIDE OR HIGH SIDE SWITCH CON-

FIGURATION

6V TO 48V SUPPLY VOLTAGE RANGE

OVERLOAD AND SHORT CIRCUIT PROTEC-

TIONS

INTERNAL VOLTAGE CLAMPING

SUPPLY AND OUTPUT REVERSAL PRO-

TECTION

THERMAL SHUTDOWN

GND AND VS OPEN WIRE PROTECTION

ADJUSTABLE DELAY AT SWITCH ON

INDICATOR STATUS LED DRIVER

+5V REGULATED AUX. VOLTAGE

HIGH BURST IMMUNITY

DESCRIPTION

The TDE1707BFP is a 0.5A Integrated Power

Switch with up to 48V Power supply capability.

Two output configurations are possible:

- Load to Gnd. (High Side Mode)

- Load to VS (Low side Mode)

Especially dedicated to proximity detectors, its in-

BLOCK DIAGRAM

SO8

ORDERING NUMBER: TDE1707BFP

ternal +5V supply can be used to supply external

circuits (See also AN495/0692). A signal is inter-

nally generated to block the In signal, and prevent

activation of the output switch, as long as an ab-

normal condition is detected. The power-on tran-

sition, as well as the chip overtemperature and

the output overcurrent, concurr to the generation

of such signal. A minimum delay of 25µs (Typ.

value) is added to the trailing edge of such signal

to ensure that a stable normal situation is present

when the signal disappears. The delay (of the dis-

apperance of the block signal; no delay at its on

set) can be further increased connecting a ca-

pacitor between pin3 and ground. It can drive re-

sistive or inductive loads.

September 2003

1/6

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

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