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FAN3122 - Low-Side Gate Driver

Download the FAN3122 datasheet PDF. This datasheet also covers the FAN3121 variant, as both devices belong to the same low-side gate driver family and are provided as variant models within a single manufacturer datasheet.

General Description

The FAN3121 and FAN3122 MOSFET drivers are designed to drive N channel enhancement MOSFETs in low

side switching applications by providing high peak current pulses.

proportional CMOS input thresholds

Key Features

  • Industry.
  • Standard Pin.
  • out with Enable Input.
  • 4.5.
  • V to 18.
  • V Operating Range.
  • 11.4 A Peak Sink at VDD = 12 V.
  • 9.7.
  • A Sink / 7.1.
  • A Source at VOUT = 6 V.
  • Inverting Configuration (FAN3121) and.
  • Non.
  • Inverting Configuration (FAN3122).
  • Internal Resistors Turn Driver Off if No Inputs.
  • 23.
  • ns / 19.
  • ns Typical Rise/Fall Times (10 nF Load).
  • 18 ns to 23 ns Typ.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (FAN3121-ONSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number FAN3122
Manufacturer onsemi
File Size 1.62 MB
Description Low-Side Gate Driver
Datasheet download datasheet FAN3122 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
FAN3122 (FAN3121 / FAN3122) Low-Side Gate Driver Fairchild Semiconductor
FAN3121 (FAN3121 / FAN3122) Low-Side Gate Driver Fairchild Semiconductor
FAN3100 Low-Side Gate Driver Fairchild Semiconductor
FAN3111 Low-Side Gate Driver Fairchild Semiconductor
FAN301 PWM Controller Fairchild Semiconductor

Other Datasheets by onsemi

Part Number Description
FAN3121 Low-Side Gate Driver
FAN3100C Single 2A High-Speed Low-Side Gate Driver
FAN3100T Single 2A High-Speed Low-Side Gate Driver
FAN3111C Low-Side Gate Driver
FAN3111E Low-Side Gate Driver

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Gate Drivers, High-Speed, Low-Side, Single 9-A FAN3121, FAN3122 Description The FAN3121 and FAN3122 MOSFET drivers are designed to drive N−channel enhancement MOSFETs in low−side switching applications by providing high peak current pulses. The drivers are available with either TTL input thresholds (FAN312xT) or VDD−proportional CMOS input thresholds (FAN312xC). Internal circuitry provides an under−voltage lockout function by holding the output low until the supply voltage is within the operating range. FAN312x drivers incorporate the MillerDrive™ architecture for the final output stage. This bipolar / MOSFET combination provides the highest peak current during the Miller plateau stage of the MOSFET turn−on / turn−off process.