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TPS2831D Datasheet(PDF) 1 Page - Texas Instruments |
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TPS2831D Datasheet(HTML) 1 Page - Texas Instruments |
1 / 22 page TPS2830, TPS2831 FAST SYNCHRONOUSBUCK MOSFET DRIVERS WITH DEADTIME CONTROL SLVS196C − JANUARY1999 − REVISED JANUARY 2001 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Floating Bootstrap or Ground-Reference High-Side Driver D Adaptive Dead-Time Control D 50-ns Max Rise/Fall Times and 100-ns Max Propagation Delay − 3.3-nF Load D Ideal for High-Current Single or Multiphase Power Supplies D 2.4-A Typical Peak Output Current D 4.5-V to 15-V Supply Voltage Range D Internal Schottky Bootstrap Diode D SYNC Control for Synchronous or Nonsynchronous Operation D CROWBAR for OVP, Protects Against Faulted High-Side Power FETs D Low Supply Current....3-mA Typical D −40°C to 125°C Operating Virtual Junction Temperature Range D Available in SOIC and TSSOP PowerPAD Packages description The TPS2830 and TPS2831 are MOSFET drivers for synchronous-buck power stages. These devices are ideal for designing a high-performance power supply using switching controllers that do not have MOSFET drivers. The drivers are designed to deliver 2.4-A peak currents into large capacitive loads. The high-side driver can be configured as a ground-reference driver or as a floating bootstrap driver. An adaptive dead-time control circuit eliminates shoot-through currents through the main power FETs during switching transitions, providing higher efficiency for the buck regulator. The TPS2830/31 drivers have additional control functions: ENABLE, SYNC, and CROWBAR. Both drivers are off when ENABLE is low. The driver is configured as a nonsynchronous-buck driver, disabling the low side driver when SYNC is low. The CROWBAR function turns on the low-side power FET, overriding the IN signal, for over-voltage protection against faulted high-side power FETs. The TPS2830 has a noninverting input. The TPS2831 has an inverting input. The TPS2830/31 drivers are available in 14-terminal SOIC and thermally-enhanced TSSOP PowerPAD packages, and operate over a virtual junction temperature range of − 40 °C to 125°C. Related Synchronous MOSFET Drivers DEVICE NAME ADDITIONAL FEATURES INPUTS TPS2832 W/O ENABLE, SYNC, and CROWBAR CMOS Noninverted TPS2833 W/O ENABLE, SYNC, and CROWBAR CMOS Inverted TPS2834 ENABLE, SYNC, and CROWBAR TTL Noninverted TPS2835 ENABLE, SYNC, and CROWBAR TTL Inverted TPS2836 W/O ENABLE, SYNC, and CROWBAR TTL Noninverted TPS2837 W/O ENABLE, SYNC, and CROWBAR TTL Inverted Copyright 2001, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 1 2 3 4 5 6 7 14 13 12 11 10 9 8 PWP PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 14 13 12 11 10 9 8 ENABLE IN CROWBAR NC SYNC DT PGND BOOT NC HIGHDR BOOTLO LOWDR NC VCC D PACKAGE (TOP VIEW) NC − No internal connection ENABLE IN CROWBAR NC SYNC DT PGND BOOT NC HIGHDR BOOTLO LOWDR NC VCC Thermal Pad PowerPAD is a trademark of Texas Instruments Incorporated. |
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