Three-Phase Buck PWM Controller with Two Integrated MOSFET Drivers and One External Driver Signal

The ISL6566A three-phase PWM control IC provides a precision voltage regulation system for advanced microprocessors. The integration of power MOSFET drivers into the controller IC marks a departure from the separate PWM controller and driver configuration of previous multiphase product families. By reducing the number of external parts, this integration is optimized for a cost and space saving power management solution.

Features

? Integrated Multi-Phase Power Conversion

- 1 or 2-Phase Operation with Internal Drivers

- 3-Phase Operation with External PWM Driver Signal

? Precision Core Voltage Regulation

- Differential Remote Voltage Sensing

- ±0.5 System Accuracy Over Temperature

- Adjustable Reference-Voltage Offset

? Precision Channel Current Sharing

- Uses Loss-Less rDS(ON) Current Sampling

? Accurate Load Line Programming

- Uses Loss-Less Inductor DCR Current Sampling

? Variable Gate Drive Bias: 5V to 12V

? Microprocessor Voltage Identification Inputs

- Up to a 6-Bit DAC

- Selectable between Intel’s VRM9, VRM10, or AMD Hammer DAC codes

- Dynamic VID-on-the-fly Technology

? Multi-tiered Overvoltage and Overcurrent Protection

? Digital Soft-Start

? Selectable Operation Frequency up to 1.5MHz Per Phase

? Pb-Free Plus Anneal Available (RoHS Compliant)

ISL6566ACRZ屬于集成電路（IC） > 特殊用途穩(wěn)壓器。瑞薩科技有限公司制造生產(chǎn)的ISL6566ACRZ特殊用途穩(wěn)壓器該系列產(chǎn)品用于電源控制、某種形式的轉(zhuǎn)換，適用于特定的復(fù)雜應(yīng)用。因此，各種產(chǎn)品特性集差異較大，包括空燃比傳感器接口、汽車交流發(fā)電機(jī)電壓調(diào)節(jié)、DDR 端接、液體透鏡控制、摩托車轉(zhuǎn)向信號控制、熱電 (peltier) 冷卻器控制、壓電觸覺控制、閥門控制、小型發(fā)動機(jī)管理等。