Digital Multiphase Controllers & Smart Power Stage for 10A‑450A Solutions
Intersil's ISL681xx and ISL691xx digital multiphase PWM controllers provide up to seven phases that are assignable in any combination across two outputs. They combine with smart power stages, like the ISL99227, to provide a scalable solution from 10A to 450A. The result is enhanced power optimization and more energy-efficient networking and communications infrastructure equipment.
Intersil's easy-to-use PowerNavigator™ GUI software supports the ISL681xx and ISL691xx products. PowerNavigator connects to development boards communicating across PMBus and AVSBus, allowing engineers to set up and control all parameters, optimize efficiency via precise current thresholds for adding/dropping phases, and adjust the loop tuning.
Key Differences in Family
|Product||Phase Configuration Output X/Output Y||Intel VR Specification Supported||Package||Datasheet|
|ISL68137||X+Y ≤ 7||PMBus/AVSBus||QFN 48 Ld, 6x6mm||isl68137.pdf|
|ISL68134||X+Y ≤ 4||PMBus/AVSBus||TQFN 40 Ld, 5x5mm||isl68134.pdf|
|ISL68127||X+Y ≤ 7||PMBus||QFN 48 Ld, 6x6mm||isl68127.pdf|
|ISL68124||X+Y ≤ 4||PMBus||TQFN 40 Ld, 5x5mm||isl68124.pdf|
- 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
- PMBus 1.3 support
- Telemetry - VIN, VOUT, IOUT, power IN/OUT, temperature, and various fault status registers
- Up to 1MHz bus interface
- Flexible phase configuration
- 7+0, 6+1, 5+2, 4+3 phase operation
- Operation using less than 7 phases between 2 outputs is also supported
- 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 the ISL99227 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 detect
- Black box recording capability for faults
- Intuitive configuration via PowerNavigator™ GUI
- NVM to store up to eight configurations
- Pb-free (RoHS compliant)
The ISL68127 is a digital dual output, flexible multiphase (X+Y ≤ 7) PWM controller supporting the latest PMBus 1.3 specifications. Either output can be configured to support any desired phase assignments up to a maximum of seven phases across the two 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 ISL68127 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 ISL68127 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 phase add/drop are user-programmable using the powerful PowerNavigator™ GUI.
The ISL68127 supports a comprehensive fault management system to enable the design of highly reliable systems. From a multitiered overcurrent protection scheme, to the configurable power-good and output overvoltage/undervoltage fault thresholds and temperature monitoring, virtually any need is accommodated.
With minimal external components, easy configuration, robust fault management, and highly accurate regulation capability, implementing a high-performance, multiphase regulator has never been easier.
- Networking equipment
- Telecom/datacom equipment
- Server/storage equipment
- Point-of-load power supply (Memory, DSP, ASIC, FPGA)
|Max # of Outputs||2||2||2||2|
|Max # of Phases||7||7||4||4|
|VIN (min) (V)||4.5||4.5||4.5||4.5|
|VIN (max) (V)||18||18||18||18|
|VOUT (min) (V)||0||0||0||0|
|VOUT (max) (V)||3.05||3.05||3.05||3.05|
|IOUT (max) (A)||450||450||240||240|
|VBIAS (V)||3.3V ±5%||3.3V ±5%||3.3V ±5%||3.3V ±5%|
|Applications||Networking equipment, Telecom/datacom equipment, Server/storage equipment, Point-of-load power supply (Memory, DSP, ASIC, FPGA)||Networking equipment, Telecom/datacom equipment, Server/storage equipment, Point-of-load power supply (Memory, DSP, ASIC, FPGA)||Networking equipment, Telecom/datacom equipment, Server/storage equipment, Point-of-load power supply (Memory, DSP, ASIC, FPGA)|
Digital Dual Output, 7-Phase Configurable, PWM Controller with PMBus™
28 Sep 2016
|28 Sep 2016||920 KB|
|PowerNavigator Software v5.3.45|
Use the PowerNavigator GUI to setup and configure supported digital power devices.
28 Oct 2016
|ZIP||28 Oct 2016||65.74 MB|
|Production Configuration Utility v5.3.45|
Production Configuration Utility software for quick loading and verification of config files into Intersil digital power controller/modules
02 Mar 2015
|ZIP||02 Mar 2015||65.74 MB|
|PowerNavigator User Guide for Digital Multiphase|
Setup and configure a digital multiphase power device using Intersil's PowerNavigator GUI version 5.3.45 or later.
28 Oct 2016
|28 Oct 2016||5.91 MB|
|Production Configuration Utility User Guide|
User guide for production configuration utility software, version 5.3.45
28 Oct 2016
|28 Oct 2016||714 KB|
|Powering IoT Infrastructure Systems with Digital Multiphase|
Examine the evolution of multiphase converter architecture from analog to digital implementations, and compare various control mode schemes.
16 Nov 2016
|16 Nov 2016||449 KB|