SP2526A-2EN-L/TR 데이터 시트보기 (PDF) - Exar Corporation

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SP2526A-2EN-L/TR

Dual Channel USB Power Distribution Switch

Exar Corporation 

November 2011

SP2526A

Dual Channel USB Power Distribution Switch

Rev. 2.1.0

GENERAL DESCRIPTION

The SP2526A device is a dual +3.0V to +5.5V

USB Supervisory Power Control Switch ideal

for self-powered and bus-powered Universal

Serial Bus (USB) applications.

Each switch has low on-resistance (110mΩ

typical) and can supply 500mA minimum. The

fault currents are limited to 1.0A typical and

the flag output pin for each switch is available

to indicate fault conditions to the USB

controller. The thermal shutdown feature will

prevent damage to the device when subjected

to excessive current loads. The undervoltage

lockout feature will ensure that the device will

remain off unless there is a valid input voltage

present.

The SP2526A is offered in a RoHS compliant

“green”/halogen free 8-pin NSOIC package.

APPLICATIONS

 Self Powered USB 2.0 and 3.0 Hubs

 USB Compliant VBUS Power Distribution

 Audio-Video Equipments

 Generic Power Switching

FEATURES

 +3.0V to +5.5V Input Voltage Range

 Two Independent Power Switches

 Two Error Flag Outputs, Open Drain

 2.6V Undervoltage Lockout

 1.25A Short Circuit Current Limit

 150mΩ Maximum On-Resistance

 110μA On-State Supply Current

 1μA Shutdown Current

 Output can be Forced Higher than

Input (Off-State)

 Thermal Shutdown

 1ms Soft Start Power Up, Fast Turn Off

 Active-high Version: SP2526A-1

 Active-low Version: SP2526A-2

 RoHS Compliant, Green/Halogen Free

8-Pin NSOIC Package

TYPICAL APPLICATION DIAGRAM

Fig. 1: SP2526A Application Diagram – Two Port Self Powered Hub

Exar Corporation

48720 Kato Road, Fremont CA 94538, USA

www.exar.com

Tel. +1 510 668-7000 – Fax. +1 510 668-7001

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