Intersil ISL68137数字双输出多相PWM控制解决方案

Intersil公司的ISL68137是具有自适应电压缩放接口(AVSBus)的数字双输出灵活的多相(X+Y ≤ 7)PWM控制器,支持7+0, 6+1, 5+2, 4+2, 3+3, 3+2相操作,和PMBus 1.3 以及AVSBus兼容,支持ISL99227 60A 智能功率级,主要用在网络设备,电信/数据通信设备,服务器/存储设备,点负载电源(存储器,DSP,ASIC,FPGA).本文介绍了ISL68137主要特性,框图和几种典型应用电路,以及评估板ISL68137-61P-EV1Z主要特性,框图,电路图,材料清单和PCB元件布局图.
The ISL68137 is a digital dual output, flexible multiphase (X+Y ≤ 7) PWM controller with AVSBus (Adaptive Voltage Scaling interface). The ISL68137 can be configured to support any desired phase assignments up to a maximum of 7 phases across the 2 outputs (X+Y). For example, 6+1, 5+2, 4+2, 3+3, 3+2, or even a single output operation as a 7+0 configuration are supported. The flexible phase arrangement, combined with PMBus and AVSBus interfaces, allows the device to support any demanding power supply requirement. The ISL68137 with AVSBus complements PMBus by providing a common interface that accelerates point-to-point communication between the controller and the load to statically and dynamically control the processor voltage, thus delivering a balanced and power efficient solution. AVSBus can be used exclusively once the device is configured via PMBus. The ISL68137 utilizes Intersil’s proprietary linear synthetic digital current modulation scheme to achieve the industry’s best combination of transient response and ease of tuning while addressing the challenges of modern multiphase designs.
Device configuration and telemetry monitoring is accomplished using Intersil’s intuitive PowerNavigator™ GUI. The ISL68137 device supports on-chip nonvolatile memory to store various configuration settings that are user selectable via pin-strap, giving system designers increased power density to configure and deploy multiple configurations. The device supports an automatic phase add/drop feature to allow maximum efficiency across all load ranges. Thresholds for automatic pha...