PM8851 Datasheet, PDF (1/14 Pages) STMicroelectronics – Short propagation delays

PM8851
1 A low-side gate driver with configurable asymmetric sink/source
SOT23-6L
Features
 Low-side MOSFET driver
 1 A sink and 0.8 A source capability
 Complementary outputs for source and sink
driving
 Ext. reference for input threshold
 Wide supply voltage range (10 V ÷ 18 V)
 Input and output pull-down resistors
 Short propagation delays
 Input and output UVLO
 Wide operating temperature range:
-40 °C to 125 °C
 SOT23-6L package
Applications
 SMPS
 Digital lighting
 Wireless battery chargers
 Digitally controlled MOSFETs
Datasheet - production data
Description
The PM8851 device 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 PM8851 has complementary output pins to
differentiate sink and source driving with a current
capability of respectively 1 A and 0.8 A.
The input levels of the driver are derived by the
voltage present at the IN_TH pin (between 2 V
and 5.5 V). This pin is typically connected at the
same voltage of the microcontroller supply
voltage.
The PM8851 includes both input and output pull-
down resistors.
UVLO circuitry for input and output stages is
present preventing the IC from driving external
MOSFET in unsafe condition.
Table 1. Device summary
Order code
Option
Package
PM8851D
Low input threshold SOT23-6L
October 2014
This is information on a product in full production.
DocID027090 Rev 1
1/14
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