L9857-TR-LF datasheet(1/11 Pages) STMICROELECTRONICS

Part #	L9857-TR-LF

Description	High voltage high-side driver

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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October 2009

Doc ID 12896 Rev 2

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11

L9857

High voltage high-side driver

Features

■ High voltage rail up to 450 V

■ dV/dt immunity ±50 V/nsec in full temperature

range

■ Driver current capability:

500 mA source,

500 mA sink

■ Switching times 100 ns rise/fall with 2.5 nF load

■ CMOS/TTL Schmitt trigger inputs with

hysteresis and pull down

■ Under voltage lock out

■ Clamping on VCC

■ Non inverting input

■ Reset circuitry

■ SO8 package

Description

The L9857 is an high voltage device,

manufactured with the BCD "off-line" technology.

It has the capability of driving N channel

PowerMOS transistors. The upper (floating)

section is enabled to work with voltage rail up to

450 V. The logic inputs are CMOS/TTL

compatible for ease of interfacing with controlling

devices..

SO-8

Table 1.

Device summary

Order code

Op. temp range,

°CPackage

Packing

L9857-TR

-40 to +125

SO-8

Tape and reel

L9857-TR-LF

-40 to +125

SO-8

Tape and reel

www.st.com

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