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FAN3111

Fairchild Semiconductor
Part Number FAN3111
Manufacturer Fairchild Semiconductor
Description Low-Side Gate Driver
Published Jul 25, 2009
Detailed Description FAN3111 — Single 1A High-Speed, Low-Side Gate Driver January 2015 FAN3111 — Single 1A High-Speed, Low-Side Gate Driver...
Datasheet PDF File FAN3111 PDF File

FAN3111
FAN3111

Overview
FAN3111 — Single 1A High-Speed, Low-Side Gate Driver January 2015 FAN3111 — Single 1A High-Speed, Low-Side Gate Driver Features  1.
4 A Peak Sink / Source at VDD = 12 V  1.
1 A Sink / 0.
9 A Source at VOUT = 6 V  4.
5 to 18 V Operating Range  FAN3111C Compatible with FAN3100C Footprint  Two Input Configurations:  Dual CMOS Inputs Allow Configuration as Non-Inverting or Inverting with Enable Function  Single Non-Inverting, Low-Voltage Input for Compatibility with Low-Voltage Controllers  Small Footprint Facilitates Distributed Drivers for Parallel Power Devices  15 ns Typical Delay Times  9 ns Typical Rise / 8 ns Typical Fall times with 470 pF Load  5-Pin SOT23 Package  Rated from –40°C to 125°C Ambient Description The FAN3111 1A gate driver is designed to drive an Nchannel enhancement-mode MOSFET in low-side switching applications.
Two input options are offered: FAN3111C has dual CMOS inputs with thresholds referenced to VDD for use with PWM controllers and other input-signal sources that operate from the same supply voltage as the driver.
For use with low-voltage controllers and other inputsignal sources that operate from a lower supply voltage than the driver, that supply voltage may also be used as the reference for the input thresholds of the FAN3111E.
This driver has a single, non-inverting, low-voltage input plus a DC input VXREF for an external reference voltage in the range 2 to 5 V.
The FAN3111 is available in a lead-free finish industrystandard 5-pin SOT23.
Applications  Switch-Mode Power Supplies  Synchronous Rectifier Circuits  Pulse Transformer Driver  Logic to Power Buffer  Motor Control VDD 1 GND 2 IN+ 3 5 OUT 4 IN− Figure 1.
FAN3111C (Top View) © 2008 Fairchild Semiconductor Corporation FAN3111 • Rev.
1.
6 VDD 1 GND 2 IN+ 3 5 OUT 4 XREF Figure 2.
FAN3111E (Top View) www.
fairchildsemi.
com FAN3111 — Single 1A High-Speed, Low-Side Gate Driver Ordering Information Part Number FAN3111CSX FAN3111ESX Input Threshold CMOS Externa...


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