TPS2834 Series

2.4-A, 28-V half bridge gate driver with TTL inputs and enable for non-inverting synchronous buck

Catalog

2.4-A, 28-V half bridge gate driver with TTL inputs and enable for non-inverting synchronous buck

Part	Gate Type	High Side Voltage - Max (Bootstrap) [Max]	Input Type	Logic Voltage - VIL, VIH	Rise / Fall Time (Typ) [custom]	Rise / Fall Time (Typ) [custom]	Package / Case [x]	Package / Case [y]	Package / Case	Channel Type	Operating Temperature [Min]	Operating Temperature [Max]	Driven Configuration	Voltage - Supply [Min]	Voltage - Supply [Max]	Current - Peak Output (Source, Sink) [custom]	Current - Peak Output (Source, Sink) [custom]	Mounting Type	Number of Drivers	Supplier Device Package
Texas Instruments TPS2834DR	N-Channel MOSFET	28 V	Non-Inverting	1 V 2 V	40 ns	50 ns	0.154 in	3.9 mm	14-SOIC	Synchronous	-40 °C	125 ¯C	Half-Bridge	4.5 V	15 V	2.7 A	2.4 A	Surface Mount	2
Texas Instruments TPS2834PWPR	N-Channel MOSFET	28 V	Non-Inverting	1 V 2 V	40 ns	50 ns	0.173 in	4.4 mm	14-PowerTSSOP	Synchronous	-40 °C	125 ¯C	Half-Bridge	4.5 V	15 V	2.7 A	2.4 A	Surface Mount	2	14-HTSSOP
Texas Instruments TPS2834PWP	N-Channel MOSFET	28 V	Non-Inverting	1 V 2 V	40 ns	50 ns	0.173 in	4.4 mm	14-PowerTSSOP	Synchronous	-40 °C	125 ¯C	Half-Bridge	4.5 V	15 V	2.7 A	2.4 A	Surface Mount	2	14-HTSSOP

Catalog

2.4-A, 28-V half bridge gate driver with TTL inputs and enable for non-inverting synchronous buck

Key Features

• Floating Bootstrap or Ground-Reference High-Side DriverAdaptive Dead-Time Control50-ns Max Rise/Fall Times With 3.3-nF Load2.4-A Typical Output Current4.5-V to 15-V Supply Voltage RangeTTL-Compatible InputsInternal Schottky Bootstrap DiodeSYNC Control for Synchronous or Nonsynchronous OperationCROWBAR for OVP, Protects Against Faulted High-Side Power FETsLow Supply Current....3 mA TypicalIdeal for High-Current Single or Multiphase Power Supplies–40°C to 125°C Operating Virtual Junction Temperature RangeAvailable in SOIC and TSSOP PowerPAD PackagesPowerPAD is a trademark of Texas Instruments Incorporated.Floating Bootstrap or Ground-Reference High-Side DriverAdaptive Dead-Time Control50-ns Max Rise/Fall Times With 3.3-nF Load2.4-A Typical Output Current4.5-V to 15-V Supply Voltage RangeTTL-Compatible InputsInternal Schottky Bootstrap DiodeSYNC Control for Synchronous or Nonsynchronous OperationCROWBAR for OVP, Protects Against Faulted High-Side Power FETsLow Supply Current....3 mA TypicalIdeal for High-Current Single or Multiphase Power Supplies–40°C to 125°C Operating Virtual Junction Temperature RangeAvailable in SOIC and TSSOP PowerPAD PackagesPowerPAD is a trademark of Texas Instruments Incorporated.

Description

The TPS2834 and TPS2835 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 include on-chip MOSFET drivers. The drivers are designed to deliver minimum 2-A peak currents into large capacitive loads. The high-side driver can be configured as ground-reference or as floating-bootstrap. An adaptive dead-time control circuit eliminates shoot-through currents through the main power FETs during switching transitions, and provides high efficiency for the buck regulator. The TPS2834 and TPS2835 have additional control functions: ENABLE, SYNC, and CROWBAR. Both high-side and low-side 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 overvoltage protection against faulted high-side power FETs. The TPS2834 has a noninverting input, while the TPS2835 has an inverting input. These drivers are available n 14-terminal SOIC and thermally enhanced TSSOP PowerPAD™ packages and operate over a junction temperature range of –40°C to 125°C. The TPS2834 and TPS2835 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 include on-chip MOSFET drivers. The drivers are designed to deliver minimum 2-A peak currents into large capacitive loads. The high-side driver can be configured as ground-reference or as floating-bootstrap. An adaptive dead-time control circuit eliminates shoot-through currents through the main power FETs during switching transitions, and provides high efficiency for the buck regulator. The TPS2834 and TPS2835 have additional control functions: ENABLE, SYNC, and CROWBAR. Both high-side and low-side 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 overvoltage protection against faulted high-side power FETs. The TPS2834 has a noninverting input, while the TPS2835 has an inverting input. These drivers are available n 14-terminal SOIC and thermally enhanced TSSOP PowerPAD™ packages and operate over a junction temperature range of –40°C to 125°C.