October 2009

Doc ID 12896 Rev 2

1/11

11

L9857

High voltage high-side driver

Features

range

500 mA source,

500 mA sink

hysteresis and pull down

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