PM8851D STMicroelectronics

PM8851 1 A low-side gate driver with configurable asymmetric sink/source 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. SOT23-6L The PM8851 has complementary output pins to differentiate sink and source driving with a current capability of respectively 1 A and 0.8 A. Features The input levels of the driver are derived by the Low-side MOSFET driver voltage present at the IN TH pin (between 2 V 1 A sink and 0.8 A source capability and 5.5 V). This pin is typically connected at the same voltage of the microcontroller supply Complementary outputs for source and sink voltage. driving The PM8851 includes both input and output pull- Ext. reference for input threshold down resistors. Wide supply voltage range (10 V 18 V) UVLO circuitry for input and output stages is Input and output pull-down resistors present preventing the IC from driving external Short propagation delays MOSFET in unsafe condition. Input and output UVLO Table 1. Device summary Wide operating temperature range: -40 C to 125 C Order code Option Package SOT23-6L package PM8851D Low input threshold SOT23-6L Applications SMPS Digital lighting Wireless battery chargers Digitally controlled MOSFETs June 2018 DocID027090 Rev 2 1/15 This is information on a product in full production. www.st.comContents PM8851 Contents 1 Block diagram 3 2 Pin connection 4 3 Maximum ratings 5 4 Electrical characteristics . 6 5 Typical applications . 8 6 Application guidelines 10 6.1 Power supply 10 6.2 Layout suggestions . 10 6.3 Driving switches .11 6.4 Power dissipation 11 7 Package information 12 7.1 SOT23-6L package information 13 8 Revision history . 14 2/15 DocID027090 Rev 2