二极管

USB

三极管

可控硅(晶闸管)

场效应管(MOSFET)

集成电路

连接器

LED系列产品

电感器

继电器

传感器

电容器

电阻器

保护器件

光电器件

压电晶体

开关原件

功率模块

说明

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.

特性

• 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