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IR3510MPBF: 产品描述IC xphase control 32-mlpq; 产品类别半导体电源管理; 文件大小635KB，共36页; 制造商International Rectifier （ Infineon ）; 官网地址http://www.irf.com/; 标准

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IR3510MPBF概述

IC xphase control 32-mlpq

IR3510MPBF规格参数

参数名称	属性值
Datasheets
IR3510
Standard Package	100
Category	Integrated Circuits (ICs)
Family	PMIC - Power Management - Specialized
系列 Packaging	Cut Tape (CT)
Applications	Process
Mounting Type	Surface Mou
封装 / 箱体 Package / Case	32-VFQFN Exposed Pad
Supplier Device Package	32-MLPQ (5x5)

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IR3510

DATA SHEET

HOT-SWAP N+1 REDUNDANT XPHASE CONTROL IC

DESCRIPTION

The IR3510 Hot-Swap N+1 Redundant X-Phase Controller combines input isolation control for hot-

swappable application, X-Phase VRM/VRD control and output OR-ing control for N+1 redundant

application. It interfaces with microcontroller and X-Phase phase ICs to provide a full featured and

flexible solution for powering high-end CPUs and servers.

The IR3510 interfaces with system logic to receive “ENABLE”, “VSET” which is the analog reference

voltage for controlling VRM output voltage, constant current limit “OCPSET” and OVP limit “OVPSET”.

It feeds back to the system load current “IO”, VRM status “VRRDY”, OR-ing FETs status “ORING” and

input fault “IOCD”.

The IR3510 works with existing X-Phase phase ICs to provide a full featured multiphase VRM control,

including soft-start, voltage regulation, constant current limit, remote sense and open sense leads

protection.

The IR3510 continuously monitors the 12V input current and VRM output voltage. Once the input

current exceeds the programmable threshold, it goes to current limit mode and turn off the input FETs

when the OC delay times out. It immediately turns off the input FETs when an OV condition is detected

on the VRM output. It also has UVLO for both the 12V input and the supply voltage to the VRM.

The IR3510 has built-in OR-ing control function for N+1 redundant application. When the VRM output

voltage is higher than the output voltage bus, it turns on the OR-ing FETs; When the VRM output is

sinking current from the output voltage bus, it turns off the OR-ing FETs.

FEATURES

•

Two ENABLE thresholds for turning on input FET and VRM output

Input isolation FET control for hot-swap, input OCP and output OVP

Programmable input OCP limit and delay

Input isolation FET short detection

Integrated Charge Pump drives input isolation FETs and output OR-ing FETs

Programmable 150KHz to 1MHz oscillator

Programmable two-stage soft-start

Analog voltage setting for output voltage control, OVP limit and OCP limit

True remote voltage sense with open-sense-lead protection

Programmable output impedance

Gain adjustable analog load current report with thermal compensation capability

Average Current Mode control improving current sharing between paralleled modules

Constant output current limit

Compatible with existing IR3086A and IR3088A Phase ICs

OR-ing control with adjustable reverse current cut-off threshold

Input Fault, VRRDY and OR-ing status indications

Operation from 12V input with 9V Under-Voltage Lockout

6.8V Bias Voltage provides system reference

32-lead MLPQ 5x5mm package

Page 1 of 36

IR Confidential

May 18, 2009

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