SP2526A Datasheet, PDF (1/9 Pages) Sipex Corporation – Dual USB High-Side Power Switch

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 V_BUS 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. [phone] – Fax. [phone]