STMicroelectronics PM8841 Low-Side Gate Driver

STMicroelectronics PM8841 Low-Side Gate Driver is a high frequency single channel low-side MOSFET driver specifically designed to work with digital power conversion microcontrollers, such as the STMicroelectronics STLUX™ family of products. The PM8841 output can sink 1A and source 0.8A. The input levels of the driver are derived by the voltage present at the IN_TH pin (between 2V and 5.5V). This pin is typically connected at the same voltage of the microcontroller supply voltage. The PM8841 device includes both input and output pull-down resistors. UVLO circuitry for input and output stages is present preventing the IC from driving the external MOSFET in unsafe condition.

Features

  • Low-side MOSFET driver
  • 1A sink and 0.8A source capability
  • External reference for input threshold
  • Wide supply voltage range (10V to 18V)
  • Input and output pull-down resistors
  • Short propagation delays
  • Input and output UVLO
  • -40°C to +125°C operating temperature range
  • SOT23-5 package

Applications

  • SMPS
  • Digital lighting
  • Wireless battery chargers
  • Digitally controlled MOSFETs

Block Diagram

STMicroelectronics PM8841 Low-Side Gate Driver
Published: 2015-01-16 | Updated: 2022-03-11