SP2525A Datasheet, PDF (1/10 Pages) Sipex Corporation – USB High-Side Power Switch

November 2011
SP2525A
Single Channel USB Power Distribution Switch
Rev. 2.1.0
GENERAL DESCRIPTION
The SP2525A device is an integrated high-side
power switch ideal for self-powered and bus-
powered Universal Serial Bus (USB)
applications.
The high-side switches are MOSFETs with
70mΩ R_DS(ON), which meets USB voltage drop
requirements for maximum transmission wire
length. Multi-purpose open-drain fault flag
output indicates over-current limiting, thermal
shutdown, or under voltage lockout. Output
current is typically limited to 0.85A below the
5A safety requirement, and the thermal
shutdown function shuts the switch off to
prevent damage under overcurrent conditions.
Guaranteed minimum output rise time limits
inrush current during hot plug-in, minimizing
EMI and preventing the voltage at the
upstream port from dropping excessively.
The SP2525A is offered in a RoHS compliant
“green”/halogen free 8-pin NSOIC package.
TYPICAL APPLICATION DIAGRAM
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
 500mA Continuous Load Current
per Channel
 2.6V Undervoltage Lockout
 1.25A Short Circuit Current Limit
 100mΩ Maximum On-Resistance
 75μA On-State Supply Current
 1μA Shutdown Current
 Output can be Forced Higher than
Input (Off-State)
 Thermal Shutdown
 Slow Turn On and Fast Turn Off
 Active-high Version: SP2525A-1
 Active-low Version: SP2525A-2
 RoHS Compliant, Green/Halogen Free
8-Pin NSOIC Package
Fig. 1: SP2525A Application Diagram – Single Port Self Powered Hub
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. [phone] – Fax. [phone]