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TPS2834

アクティブ

複数の TTL 入力採用、イネーブル搭載、非反転型同期整流降圧向け、2.4A、28V、ハーフブリッジ・ゲート・ドライバ

ご注文はこちら
データシート

TPS2834

アクティブ
データシート ご注文はこちら

製品詳細

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) 0.07 Rise time (ns) 50 Fall time (ns) 40 Iq (mA) 3 Input threshold TTL Channel input logic TTL Switch node voltage (V) 0 Features Dead time control, Enable, Synchronous Rectification Driver configuration Noninverting
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) 0.07 Rise time (ns) 50 Fall time (ns) 40 Iq (mA) 3 Input threshold TTL Channel input logic TTL Switch node voltage (V) 0 Features Dead time control, Enable, Synchronous Rectification Driver configuration Noninverting
HTSSOP (PWP) 14 32 mm² 5 x 6.4 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 With 3.3-nF Load
  • 2.4-A Typical Output Current
  • 4.5-V to 15-V Supply Voltage Range
  • TTL-Compatible Inputs
  • 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
  • Ideal for High-Current Single or Multiphase Power Supplies
  • –40°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 With 3.3-nF Load
  • 2.4-A Typical Output Current
  • 4.5-V to 15-V Supply Voltage Range
  • TTL-Compatible Inputs
  • 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
  • Ideal for High-Current Single or Multiphase Power Supplies
  • –40°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 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.
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種類 タイトル 最新の英語版をダウンロード 日付
* データシート Synchronous-Buck MOSFET Drivers With Deadtime Control データシート (Rev. B) 2002年 8月 13日

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  • リード端子の仕上げ / ボールの原材料
  • MSL 定格 / ピーク リフロー
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  • 使用原材料
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