ISL6594D中文资料高级同步降压 MOSFET 驱动器，带 3V PWM 接口和高级保护功能数据手册Renesas规格书

描述 Description

The ISL6594D is high frequency MOSFET driver specifically designed to drive upper and lower power N-Channel MOSFETs in a synchronous rectified buck converter topology. This driver combined with the ISL6594D Digital Multi-Phase Buck PWM controller and N-Channel MOSFETs forms a complete core-voltage regulator solution for advanced microprocessors.
The ISL6594D drives both upper and lower gates over a range of 4.5V to 13.2V. This drive-voltage provides the flexibility necessary to optimize applications involving trade-offs between gate charge and conduction losses.
An advanced adaptive zero shoot-through protection is integrated to prevent both the upper and lower MOSFETs from conducting simultaneously and to minimize the dead time. The ISL6594D includes an overvoltage protection feature operational before VCC exceeds its turn-on threshold, at which the PHASE node is connected to the gate of the low side MOSFET (LGATE). The output voltage of the converter is then limited by the threshold of the low side MOSFET, which provides some protection to the microprocessor if the upper MOSFET(s) is shorted.
The ISL6594D also features an input that recognizes a high-impedance state, working together with Intersil multiphase PWM controllers to prevent negative transients on the controlled output voltage when operation is suspended. This feature eliminates the need for the Schottky diode that may be utilized in a power system to protect the load from negative output voltage damage.

特性 Features

• Dual MOSFET Drives for Synchronous Rectified Bridge
• Advanced Adaptive Zero Shoot-Through Protection
• Auto-zero of rDS(ON) Conduction Offset Effect
• 36V Internal Bootstrap Schottky Diode
• Supports High Switching Frequency (up to 2MHz)
• Fast Rise/Fall Times and Low Propagation Delays
• Three-State PWM Input for Output Stage Shutdown
• Pre-POR Overvoltage Protection
• Expandable Bottom Copper Pad for Enhanced Heat Sinking
• Near Chip-Scale Package Footprint; Improves PCB Efficiency and Thinner in Profile
• Pb-Free (RoHS Compliant)

应用 Application

• Optimized for POL DC/DC Converters for IBA Systems
• High Current DC/DC Converters
• High Frequency and High Efficiency VRM and VRD