Renesas Electronics ISL681xx数字多相PWM控制器
Renesas/Intersil ISL681xx数字多相PWM（脉宽调制）控制器提供稳健的故障管理和高度精确的调节能力，仅需极少外部元件即可实现高性能多相稳压器。这些器件最多提供7个相位，可以在两个输出上以任意组合进行分配。这些控制器结合智能功率级，如Intersil ISL99227，以提供一个10A - 450A的可扩展解决方案。结果是增强了功率优化并实现了更节能的网络和通信基础设施设备。Intersil ISL681xx PWM控制器采用专有的线性合成数字电流调制方案来实现出色的瞬态响应，且易于调节，同时满足现代多相设计的挑战。
特性
- PMBus™ 1.3 compliant
- AVSBus compliant (ISL68137, ISL68134)
- Advanced linear digital modulation scheme
- Zero-latency synthetic current control for excellent HF current balance
- Dual edge modulation for fastest transient response
- Auto phase add/drop for excellent load vs efficiency profile
- Flexible phase configuration
- Diode braking for overshoot reduction
- Differential remote voltage sensing supports ±0.5% closed-loop system accuracy over load, line, and temperature
- Highly accurate current sensing for excellent load line regulation and accurate OCP
- Supports ISL99227 Renesas 60A Smart Power Stage
- Supports DCR sense with integrated temperature compensation
- Comprehensive fault management enables high-reliability systems
- Pulse-by-pulse phase current limiting
- Total output current protection
- Output and input OV/UV
- Open voltage sense lead detect
- Black box recording capability for faults
- Intuitive configuration via PowerNavigator™GUI
- NVM to store up to 8 configurations
- Pb-free (RoHS compliant)
- Package
- 40-pin TQFN (ISL68134, ISL68124)
- 48-pin QFN (ISL68137, ISL68137)
应用
- Networking equipment
- Telecom/datacom equipment
- Server/storage equipment
- Point-of-load power supply (Memory, DSP, ASIC, FPGA)
规范
- Phases (max)
- 4 (ISL68124, ISL68134)
- 7 (ISL68127, ISL68137)
- 2 outputs
- 240A to 450A current range
- 4.5V to 18V voltage range
发布日期: 2016-12-02
| 更新日期: 2022-03-11