L9857 Datasheet, PDF (1/11 Pages) STMicroelectronics – High voltage high-side driver

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 V_CC
■ Non inverting input
■ Reset circuitry
■ SO8 package
Description
The L9857 is an high voltage device,
manufactured with the BCD "off-line" technology.
Table 1. Device summary
Order code
Op. temp range, °C
L9857-TR
-40 to +125
L9857-TR-LF
-40 to +125
SO-8
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..
Package
SO-8
SO-8
Packing
Tape and reel
Tape and reel
October 2009
Doc ID 12896 Rev 2
1/11
www.st.com
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