Fairchild Fan73933 Half-Bridge Gate Drive IC Data Handbook
Summary
The FAN73933 is a robust half-bridge gate driver IC designed for high-speed power switching applications up to +600V. This manual details the device's advanced features, including programmable dead-time control and built-in noise cancellation, ensuring stable operation in harsh environments. It is essential reading for electrical engineers and designers of complex power electronics, such as motor drive inverters, DC-DC converters, and high-power bridge circuits.
Page 1 Text Content
FA 73933 — alf-B ridge G ate D river
December 2009
FAN73933 Half-Bridge Gate Drive IC
Features Description Floating Channel for Bootstrap Operation to +600V The FAN73933 is a half-bridge, gate-drive IC with pro-
Typically 2.5A/2.5A Sourcing/Sinking Current Driving grammable dead-time control functions that can drive Capability high-speed MOSFETs and IGBTs operating up to +600V. It has a buffered output stage with all NMOS transistors
Extended Allowable Negative VS Swing to -9.8V for
designed for high-pulse-current driving capability and
Signal Propagation at VBS=15V
minimum cross-conduction.
Output in Phase with Input Signal
Fairchild’s high-voltage process and common-mode
3.3V and 5V Input Logic Compatible
noise canceling techniques provide stable operation of
Matched Propagation Delay for Both Channels
the high-side driver under high dv/dt noise circum-
Built-in UVLO Functions for Both Channels
stances. An advanced level-shift circuit offers high-side
Built-in Common-Mode dv/dt Noise Cancelling Circuit
gate driver operation up to VS=-9.8V (typical) for
Programmable Dead-Time Control Function
VBS=15V.
Internal 220ns Minimum Dead Time at RDT=0Ω
The UVLO circuit prevents malfunction when VDD and VBS are lower than the specified threshold voltage.
Applications
The high-current and low-output voltage drop feature High-Speed Power MOSFET and IGBT Gate Driver makes this device suitable for diverse half- and full- bridge inverters; motor drive inverters, switching mode
Induction Heating
power supplies, induction heating, and high-power DC-
High-Power DC-DC Converter
DC converter applications.
Synchronous Step-Down Converter Motor Drive Inverter
14-SOP
Ordering Information
Operating
Part Number Package Temperature Packing Method
Status
Range
FAN73933M 14-Lead, Small Outline Integrated Tube
Circuit (SOIC), Non-JEDEC, .150 -40°C to +125°C Ro HS
FAN73933MX Tape & Reel
Inch Narrow Body, 225SOP
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN73933 • Rev. 1.0.0
Page Summary Contents For Fairchild Fan73933 Half-Bridge Gate Drive IC Data Handbook
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 17 |
| File Size | 1.92 MB |
| Published | July 07, 2026 |
Enter the captcha to get the download link:
Frequently Asked Questions
How do I program the dead time?
Dead-time control can be managed externally using the dedicated DT pin and an external resistor.
What protective features prevent malfunctions during voltage drops?
The built-in UVLO (Under Voltage Latch-Up) circuit prevents malfunction when V/DD are lower than the specified threshold voltage.
Are there specific requirements for my PCB layout design?
Yes, regarding JESD51-2, the ground plane should not be placed under or near the high-voltage floating side.
What applications is this gate driver suitable for?
It is suitable for diverse half- and full-bridge inverters, motor drive inverters, and DC converters.