Renesas Electronics ISL681x Digital Multiphase PWM Controllers
Renesas Electronics ISL681x Digital Multiphase PWM (Pulse Width Modulation) Controllers offer robust fault management, highly accurate regulation capability, and require minimal external components, simplifying the implementation of high-performance multiphase regulators. These devices provide up to seven phases that are assignable in any combination across two outputs. Renesas Electronics controllers 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. The SL681x PWM Controllers utilize a proprietary linear synthetic digital current modulation scheme to achieve excellent transient response and ease of tuning while addressing the challenges of modern multiphase designs.Features
- 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)
Applications
- Networking equipment
- Telecom/datacom equipment
- Server/storage equipment
- Point-of-load power supply (Memory, DSP, ASIC, FPGA)
Specifications
- Phases (max)
- 4 (ISL68124, ISL68134)
- 7 (ISL68127, ISL68137)
- 2 outputs
- 240A to 450A current range
- 4.5V to 18V voltage range
Publicado: 2016-12-02
| Actualizado: 2022-03-11
