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TPS2833D Datasheet(PDF) 2 Page - Texas Instruments |
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TPS2833D Datasheet(HTML) 2 Page - Texas Instruments |
2 / 17 page TPS2832, TPS2833 FAST SYNCHRONOUSBUCK MOSFET DRIVERS WITH DEADTIME CONTROL SLVS195C − FEBRUARY 1999 − REVISED JANUARY 2001 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 functional block diagram DT 3 IN VCC LOWDR BOOTLO HIGHDR BOOT PGND 1 4 8 7 6 5 VCC 2 (TPS2832 Only) (TPS2833 Only) Terminal Functions TERMINAL I/O DESCRIPTION NAME NO. I/O DESCRIPTION BOOT 8 I Bootstrap terminal. A ceramic capacitor is connected between BOOT and BOOTLO terminals to develop the floating bootstrap voltage for the high-side MOSFET. The capacitor value is typically between 0.1 µF and 1 µF. A 1-MΩ resistor should be connected across the bootstrap capacitor to provide a discharge path when the driver has been powered down. BOOTLO 6 O This terminal connects to the junction of the high-side and low-side MOSFETs. DT 3 I Dead-time control terminal. Connect DT to the junction of the high-side and low-side MOSFETs HIGHDR 7 O Output drive for the high-side power MOSFET IN 1 I Input signal to the MOSFET drivers (noninverting input for the TPS2832; inverting input for the TPS2833). LOWDR 5 O Output drive for the low-side power MOSFET PGND 2 Power ground. Connect to the FET power ground. VCC 4 I Input supply. Recommended that a 1 µF capacitor be connected from VCC to PGND. |
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