TDE1708DFT 查看數據表（PDF） - STMicroelectronics

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TDE1708DFT

Intelligent power switch

STMicroelectronics 

TDE1708DFT

Intelligent power switch

Features

■ Low side or high side switch configuration

■ 6 V to 48 V supply voltage range

■ Overload and short circuit protections

■ Internal voltage clamping

■ Supply and output reversal protection

■ Thermal shutdown

■ GND and VS open wire protection

■ Adjustable delay at switch on

■ Indicator status led driver

■ +5 V regulated aux. voltage

■ High burst immunity

Description

The TDE1708DFT is an integrated power switch

with up to 48 V 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

internal +5 V supply can be used to supply

external circuits (See also AN495).

Table 1. Device summary

Order code

Temp. range, °C

TDE1708DFT

-25 °C to +85 °C

DFN (4x4)

A signal is internally generated to block the In

signal, and prevent activation of the output switch,

as long as an abnormal condition is detected. The

power-on transition, as well as the chip over

temperature and the output overcurrent, concur to

the generation of such signal. A minimum delay of

25 ms (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 disappearance of the block

signal; no delay at its on set) can be further

increased connecting a capacitor between pin3

and ground. It can drive resistive or inductive

loads.

Package

DFN (4x4)

Packing

Tape and reel

February 2009

Rev 4

www.st.com

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