概览

The ISL8115 is a synchronous buck PWM controller with current sharing capability. The current sharing function allows multiple modules to be connected in parallel to achieve higher output current and to reduce input and output ripple current, resulting in fewer components and reduced output dissipation. Utilizing voltage-mode control with input voltage feed-forward compensation, the ISL8115 maintains a constant loop gain for optimal transient response, especially for applications with a wide input voltage range. The ISL8115 protects against overcurrent conditions by inhibiting the PWM operation while monitoring the current with DCR of the output inductor, or a precision resistor. It also has a pre-POR overvoltage protection option, which provides some protection to the load if the upper MOSFET(s) is shorted. The ISL8115 features remote ground sensing, programmable input voltage UVLO, output under/overvoltage protection, power-good indication, and fault Hand Shake capability.

ISL8115 Functional Diagram
ISL8115 Functional Diagram
  • Wide VIN range operation: 2.97V to 36V; up to 5.5V output and 30A load current per phase
  • Fast transient response
  • Voltage-mode PWM leading-edge modulation with non-linear control
  • Input voltage feed-forward
  • Integrated 5V high speed 4A MOSFET gate drivers
  • Internal bootstrap diode
  • Excellent output voltage regulation
  • 0.6V ±1.0% internal reference (-40°C ~ 125°C)
  • 0.6V ±0.7% internal reference (-40°C ~ 105°C)
  • Differential voltage sensing
  • Excellent current balancing and overcurrent protection
  • Peak and average overcurrent protection
  • Output current monitor on the ISET pin
  • Oscillator programmable from 150kHz to 1.5MHz
  • Frequency synchronization to external clock signal
  • Diode emulation mode for light load efficiency improvement
  • Power-good open drain output
  • Pre-bias start-up function
  • Output OVP, UVP; OTP
  • Adjustable Soft-Start

应用

  • Power supply for datacom/telecom and POL
  • Wide input voltage range buck regulators
  • High current density power supplies RF power amplifier bias
  • compensation

文档

= 相关文档
类型 文档标题 日期
数据手册
ISL8115 Datasheet
PDF 1.41 MB
产品变更通告
PCN20029A - Alternate bond wire material and assembly facility of the listed Renesas QFN packaged products
PDF 326 KB
指南
ISL8115DEMO1Z User Guide
PDF 1.43 MB
手册 - 开发工具
ISL8115EVAL2Z User Guide
PDF 908 KB
指南
ISL8115EVAL1Z User Guide
PDF 910 KB
应用文档
AN1681: Grounding Techniques
PDF 509 KB
应用文档
AN1684: Nonideality of Ground
PDF 397 KB
7 items

设计和开发

软件下载
类型 文档标题 日期
PCB设计文档
ISL8115DEMO1Z Design Files
ZIP 762 KB
PCB设计文档
ISL8115EVAL1Z Design Files
ZIP 967 KB
PCB设计文档
ISL8115EVAL2Z Design Files
ZIP 934 KB
3 items

开发板与套件

ISL8115DEMO1Z Demonstration Board

ISL8115DEMO1Z

演示
了解更多

High Voltage Synchronous Buck PWM Controller with Integrated Gate Driver Demonstration Board

The ISL8115DEMO1Z is a compact reference design synchronous buck converter (28.19mm x 16.89mm) for implementing Renesas' ISL8115 wide input range PWM controller....

特色文件:
ISL8115DEMO1Z User Guide
ISL8115EVAL1Z Synchronous Buck Converter Evaluation Board

ISL8115EVAL1Z

评估
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Synchronous Buck Converter Evaluation Board

The ISL8115EVAL1Z is a synchronous buck converter evaluation board that is used to implement Renesas' ISL8115 wide input range pulse width modulation (PWM) controller....

特色文件:
ISL8115EVAL1Z User Guide
ISL8115EVAL2Z Synchronous Buck Converter Evaluation Board

ISL8115EVAL2Z

评估
了解更多

Synchronous Buck Converter Evaluation Board

The ISL8115EVAL2Z is a synchronous buck converter evaluation board that is used to implement Renesas' ISL8115 wide input range pulse width modulation (PWM) controller....

特色文件:
ISL8115EVAL2Z User Guide

ECAD 模块

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

扩展 ECAD 模块
Diagram of ECAD Models

产品选择

    Processing table
    Pkg. Type
    Carrier Type
    MOQ
    购买 / 样片
    器件号
    ISL8115FRTZ
    circle过时
    memory
    spa
    view_in_ar
    		TQFN Tube 1500
    ISL8115FRTZ-T
    circle过时
    memory
    spa
    view_in_ar
    		TQFN Reel 6000
    Parametric Table tips

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