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December 2009
FAN73933
Half-Bridge Gate Drive IC
Features
Floating Channel for Bootstrap Operation to +600V
Typically 2.5A/2.5A Sourcing/Sinking Current Driving
Capability
Extended Allowable Negative V S Swing to -9.8V for
Signal Propagation at V BS =15V
Output in Phase with Input Signal
3.3V and 5V Input Logic Compatible
Matched Propagation Delay for Both Channels
Built-in UVLO Functions for Both Channels
Built-in Common-Mode dv/dt Noise Cancelling Circuit
Programmable Dead-Time Control Function
Internal 220ns Minimum Dead Time at R DT =0 Ω
Applications
High-Speed Power MOSFET and IGBT Gate Driver
Induction Heating
High-Power DC-DC Converter
Synchronous Step-Down Converter
Description
The FAN73933 is a half-bridge, gate-drive IC with pro-
grammable dead-time control functions that can drive
high-speed MOSFETs and IGBTs operating up to +600V.
It has a buffered output stage with all NMOS transistors
designed for high-pulse-current driving capability and
minimum cross-conduction.
Fairchild’s high-voltage process and common-mode
noise canceling techniques provide stable operation of
the high-side driver under high dv/dt noise circum-
stances. An advanced level-shift circuit offers high-side
gate driver operation up to V S =-9.8V (typical) for
V BS =15V.
The UVLO circuit prevents malfunction when V DD and
V BS are lower than the specified threshold voltage.
The high-current and low-output voltage drop feature
makes this device suitable for diverse half- and full-
bridge inverters; motor drive inverters, switching mode
power supplies, induction heating, and high-power DC-
DC converter applications.
Motor Drive Inverter
14-SOP
Ordering Information
Part Number
FAN73933M
FAN73933MX
Package
14-Lead, Small Outline Integrated
Circuit (SOIC), Non-JEDEC, .150
Inch Narrow Body, 225SOP
Operating
Temperature
Range
-40°C to +125°C
Eco
Status
RoHS
Packing Method
Tube
Tape & Reel
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html .
? 2009 Fairchild Semiconductor Corporation
FAN73933 ? Rev. 1.0.0
www.fairchildsemi.com
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