CMPWR025 查看數據表（PDF） - ON Semiconductor

零件编号

产品描述 (功能)

生产厂家

CMPWR025

Dual Input SmartOR Power Switch

ON Semiconductor 

CMPWR025

Dual Input SmartORt Power

Switch

Product Description

The SmartORt CMPWR025 is a dual input power switch that

selects between two different power inputs and delivers it to one

output. The device integrates two very low impedance power switches

and automatically implements an OR function that selects the higher

of the two inputs. Hysteresis is built in (and is user selectable) to

prevent switch chatter.

The CMPWR025 is a much−improved solution over simply ORing

two diodes, due to the greatly reduced losses of the CMPWR025 when

compared to low forward drop Schottky diodes.

The CMPWR025 is designed to operate above the 1 W (375 mA at

3.3 V) sleep mode rating stated in the PCI Rev 2.2 spec. In fact the

CMPWR025 current rating is dependent upon the power dissipation

resulting from the voltage drop across the internal switch elements.

See the Typical DC Characteristics section in this data sheet for

details.

For IAPC (Instantly Available Personal Computer) applications see

ON Semiconductor Application Note “Instantly Available PCI Card

Power Management”.

The CMPWR025 is housed in a 8−lead MSOP package and is

available with RoHS compliant lead−free finishing.

Features

 Implements Logical “Input VCC1 OR Input VCC2”

 Integrated Low Impedance Switches (0.2 W TYP)

 Operating Supply Range from 2.8 V to 5.5 V

 Provides Up to 600 mA Output Current

 Glitch−Free Output During Supply Switching Transitions

 Low Operating Supply Current of 20 mA (TYP)

 User−Selectable Hysteresis for Supply Selection

 8−Pin MSOP Package

 These Devices are Pb−Free and are RoHS Compliant

Applications

 PCI Cards for Wake−On−LAN/Wake−On−Ring

 Dual Power Systems

 Systems with Standby Capabilities

 Battery Backup Systems

 See also Application Note AP−211

 USB Enabled Mobile Electronics such as MP3 Players, PDAs,

Digital Cameras and Wireless Handsets

http://onsemi.com

MSOP 8

R SUFFIX

CASE 846AD

MARKING DIAGRAM

R025

R025 = CMPWR025R

ORDERING INFORMATION

Device

CMPWR025R

Package

Shipping†

MSOP 8 4000/Tape & Reel

(Pb−Free)

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

 Semiconductor Components Industries, LLC, 2011

1

April, 2011 − Rev. 4

Publication Order Number:

CMPWR025/D

Share Link: