SSPP22552255AA SSiinnggllee CChhaannnneell UUSSBB PPoowweerr DDiissttrriibbuuttiioonn SSwwiittcchh November 2011 Rev. 2.1.0 GENERAL DESCRIPTION APPLICATIONS The SP2525A device is an integrated high-side Self Powered USB 2.0 and 3.0 Hubs power switch ideal for self-powered and bus- USB Compliant V Power Distribution BUS powered Universal Serial Bus (USB) applications. Audio-Video Equipments Generic Power Switching The high-side switches are MOSFETs with 70m R , which meets USB voltage drop DS(ON) requirements for maximum transmission wire FEATURES length. Multi-purpose open-drain fault flag output indicates over-current limiting, thermal +3.0V to +5.5V Input Voltage Range shutdown, or under voltage lockout. Output 500mA Continuous Load Current current is typically limited to 0.85A below the per Channel 5A safety requirement, and the thermal shutdown function shuts the switch off to 2.6V Undervoltage Lockout prevent damage under overcurrent conditions. 1.25A Short Circuit Current Limit Guaranteed minimum output rise time limits inrush current during hot plug-in, minimizing 100m Maximum On-Resistance EMI and preventing the voltage at the 75 A On-State Supply Current upstream port from dropping excessively. 1 A Shutdown Current The SP2525A is offered in a RoHS compliant green/halogen free 8-pin NSOIC package. 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 TYPICAL APPLICATION DIAGRAM Fig. 1: SP2525A Application Diagram Single Port Self Powered Hub Exar Corporation www.exar.com 48720 Kato Road, Fremont CA 94538, USA Tel. +1 510 668-7000 Fax. +1 510 668-7001 SSPP22552255AA SSiinnggllee CChhaannnneell UUSSBB PPoowweerr DDiissttrriibbuuttiioonn SSwwiittcchh ABSOLUTE MAXIMUM RATINGS OPERATING RATINGS These are stress ratings only and functional operation of Ambient Temperature Range ..................... -40C to 85C the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. Supply Voltage V ................................................. 7.0V IN Fault Flag Voltage V ............................................ 7.0V FLG Fault Flag Current I ........................................... 50mA FLG Enable Input V ......................................... -0.3V to 15V EN Storage Temperature .............................. -65C to 150C Power Dissipation (NSOIC-8) ......................................... (derate 6.14mW/C above 70C) ...................... 500mW ELECTRICAL SPECIFICATIONS Specifications with standard type are for an Operating Ambient Temperature of T = 25C only limits applying over the full A Operating Junction Temperature range are denoted by a . Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at T = 25C, and are provided A for reference purposes only. Unless otherwise indicated, V = 5.0V, T = 25C. IN A Parameter Min. Typ. Max. Units Conditions 0.75 5.0 V = Logic 0 OUT =open EN Supply Current A 75 100 V = Logic 1 OUT =open EN 1.7 V = Logic 0 0.8 EN Enable Input Voltage V 2.0 2.4 V = Logic 1 EN 0.01 1 V = Logic 0 EN Enable Input Current A 0.01 1 V = Logic 1 EN Enable Input Capacitance 1 pF Output MOSFET Resistance 70 100 m Output turn-on delay 100 s R =10 , each output L Output turn-on rise time 1000 4000 s R =10 , each output L Output turn-off delay 0.8 20 s R =10 , each output L Output turn-off fall time 0.7 20 s R =10 , each output L Output Leakage Current 10 A Current limit threshold 0.6 1.0 1.25 A 135 C Temperature T raising Over temperature shutdown J threshold 125 Temperature T decreasing J 10 25 V =5V, I =10mA IN L Error Flag Output Resistance 15 40 V =3.3V, I =10mA IN L Error Flag Current 0.01 1 A 2.6 V increasing IN UVLO threshold V 2.4 V decreasing IN 2011 Exar Corporation 2/10 Rev. 2.1.0