FAN7842_07 Datasheet, PDF (1/13 Pages) Fairchild Semiconductor – High and Low Side Gate Driver

FAN7842
High and Low Side Gate Driver
February 2007
Features
„ Floating Channels Designed for Bootstrap Operation
to +200V
„ Typically 350mA/650mA Sourcing/Sinking Current
Driving Capability for Both Channels
„ Common-Mode dv/dt Noise Canceling Circuit
„ Extended Allowable Negative V_S Swing to -9.8V for
Signal Propagation at V_CC=V_BS=15V
„ V_CC & V_BS Supply Range from 10V to 20V
„ UVLO Functions for Both Channels
„ TTL-Compatible Input Logic Threshold Levels
„ Matched Propagation Delay Below 50ns
„ Output In-phase with Input Signal
Applications
„ Half- and Full-Bridge Converters
„ Current-Fed Push-Pull Converters
„ Synchronous Buck Converters
Description
The FAN7842, a monolithic high and low side gate drive
IC, which can drive MOSFETs and IGBTs that operate up
to +200V.
Fairchild’s high-voltage process and common-mode
noise canceling technique provide stable operation of the
high-side driver under high-dv/dt noise circumstances.
An advanced level-shift circuit allows high-side gate
driver operation up to V_S=-9.8V (typical) for V_BS=15V.
The input logic level is compatible with standard TTL-
series logic gates.
The UVLO circuits for both channels prevent malfunction
when V_CC and V_BS are lower than the specified thresh-
old voltage. Output driver current (source/sink) is typi-
cally 350mA/650mA, respectively.
8-SOP
Ordering Information
Part Number
FAN7842M⁽¹⁾
FAN7842MX⁽¹⁾
Operating Temp.
Range
-40°C to +125°C
Pb-Free
Yes
Note:
1. These devices passed wave soldering test by JESD22A-111.
Package
8-SOP
Packing Method
Tube
Tape & Reel
© 2006 Fairchild Semiconductor Corporation
FAN7842 Rev. 1.0.2
www.fairchildsemi.com