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TPS2833D Datasheet(PDF) 3 Page - Texas Instruments |
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TPS2833D Datasheet(HTML) 3 Page - Texas Instruments |
3 / 17 page TPS2832, TPS2833 FAST SYNCHRONOUSBUCK MOSFET DRIVERS WITH DEADTIME CONTROL SLVS195C − FEBRUARY 1999 − REVISED JANUARY 2001 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 detailed description low-side driver The low-side driver is designed to drive low Rds(on) N-channel MOSFETs. The current rating of the driver is 2 A, source and sink. high-side driver The high-side driver is designed to drive low Rds(on) N-channel MOSFETs. The current rating of the driver is 2 A, source and sink. The high-side driver can be configured as a ground-reference driver or a floating bootstrap driver. The internal bootstrap diode, is a Schottky for improved drive efficiency. The maximum voltage that can be applied between the BOOT terminal and ground is 30 V. dead-time (DT) control† Dead-time control prevents shoot through current from flowing through the main power FETs during switching transitions by controlling the turn-on times of the MOSFET drivers. The high-side driver is not allowed to turn on until the gate drive voltage to the low-side FET is low, and the low-side driver is not allowed to turn on until the voltage at the junction of the power FETs (Vdrain) is low; the DT terminal connects to the junction of the power FETs. IN† The IN terminal is a digital terminal that is the input control signal for the drivers. The TPS2832 has a noninverting input; the TPS2833 has an inverting input. †High-level input voltages on IN and DT must be greater than or equal to 0.7VCC. |
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