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TPS2831

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2.4-A, 28-V half bridge gate driver with enable for inverting fast synchronous buck in SOIC-14

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Data sheet

TPS2831

ACTIVE
Data sheet Order now

Product details

Bootstrap supply voltage (max) (V) 28 Power switch MOSFET Input supply voltage (min) (V) 4.5 Input supply voltage (max) (V) 15 Peak output current (A) 2.4 Operating temperature range (°C) -40 to 125 Rating Catalog Propagation delay time (µs) 0.075 Rise time (ns) 50 Fall time (ns) 50 Iq (mA) 3 Input threshold CMOS Channel input logic CMOS Switch node voltage (V) 0 Features Dead time control, Enable, Synchronous Rectification Driver configuration Inverting
Bootstrap supply voltage (max) (V) 28 Power switch MOSFET Input supply voltage (min) (V) 4.5 Input supply voltage (max) (V) 15 Peak output current (A) 2.4 Operating temperature range (°C) -40 to 125 Rating Catalog Propagation delay time (µs) 0.075 Rise time (ns) 50 Fall time (ns) 50 Iq (mA) 3 Input threshold CMOS Channel input logic CMOS Switch node voltage (V) 0 Features Dead time control, Enable, Synchronous Rectification Driver configuration Inverting
SOIC (D) 14 51.9 mm² 8.65 x 6
  • Floating Bootstrap or Ground-Reference High-Side Driver
  • Adaptive Dead-Time Control
  • 50-ns Max Rise/Fall Times and 100-ns Max Propagation Delay \x96 3.3-nF Load
  • Ideal for High-Current Single or Multiphase Power Supplies
  • 2.4-A Typical Peak Output Current
  • 4.5-V to 15-V Supply Voltage Range
  • Internal Schottky Bootstrap Diode
  • SYNC Control for Synchronous or Nonsynchronous Operation
  • CROWBAR for OVP, Protects Against Faulted High-Side Power FETs
  • Low Supply Current....3-mA Typical
  • \x9640°C to 125°C Operating Virtual Junction Temperature Range
  • Available in SOIC and TSSOP PowerPAD Packages

PowerPAD is a trademark of Texas Instruments Incorporated.
  • Floating Bootstrap or Ground-Reference High-Side Driver
  • Adaptive Dead-Time Control
  • 50-ns Max Rise/Fall Times and 100-ns Max Propagation Delay \x96 3.3-nF Load
  • Ideal for High-Current Single or Multiphase Power Supplies
  • 2.4-A Typical Peak Output Current
  • 4.5-V to 15-V Supply Voltage Range
  • Internal Schottky Bootstrap Diode
  • SYNC Control for Synchronous or Nonsynchronous Operation
  • CROWBAR for OVP, Protects Against Faulted High-Side Power FETs
  • Low Supply Current....3-mA Typical
  • \x9640°C to 125°C Operating Virtual Junction Temperature Range
  • Available in SOIC and TSSOP PowerPAD Packages

PowerPAD is a trademark of Texas Instruments Incorporated.

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 PowerPADE packages, and operate over a virtual junction temperature range of \x9640°C to 125°C.

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 PowerPADE packages, and operate over a virtual junction temperature range of \x9640°C to 125°C.
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Type Title Date
* Data sheet Synchronous-Buck Mosfet Driver With Dead TIme Control datasheet (Rev. C) 21 Dec 1999
Application brief External Gate Resistor Selection Guide (Rev. A) 28 Feb 2020
Application brief Understanding Peak IOH and IOL Currents (Rev. A) 28 Feb 2020
Application note Optimizing MOSFET Characteristics by Adjusting Gate Drive Amplitude (Rev. A) 14 Nov 2018
More literature Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A) 29 Oct 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018

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