XXRRPP22552277 -- XXRRPP22552288 Single/Dual Channel Adjustable Current Power Single/Dual Channel Adjustable Current Power DDiissttrriibbuuttiioonn SSwwiittcchh July 2011 Rev. 1.1.0 GENERAL DESCRIPTION APPLICATIONS The XRP2527 and XRP2528 devices are Generic Power Switching respectively single and dual channel integrated Self Powered USB 2.0 and 3.0 Hubs high-side power distribution switches with independent enables, fault flags and precise USB Compliant V Power Distribution BUS programmable current limit thresholds. A wide Audio-Video Equipments 1.8V to 5.5V input voltage range allows for operations from industry standard 1.8V, 3.3V and 5V power rails. FEATURES Current limit thresholds can be programmed Single/Dual Channel Current Switch accurately and independently for each channel 1A per channel capable via an external resistor. A simple setting 1.8V to 5.5V Input Voltage Range optimizes the XRP2527 and XRP2528 for use in USB 2.0 or 3.0 compliant V power Programmable Over-Current Limit BUS distribution architectures. These devices can 300mA to 1A set via external resistor be used in any self or bus powered USB 8% threshold accuracy at 1A applications. The power-switch rise and fall times are controlled to minimize current USB 2.0/3.0 Compliant surges during turn on/off. Individual Channel Enable Built-in over current, under voltage lockout Individual Channel Fault Flag Indicator (UVLO), reverse current and over temperature protections insure safe operations under Under voltage Lockout, Reverse abnormal operating conditions. Current and Thermal Shutdown Protection XRP2527 and XRP2528 are offered respectively in RoHS compliant RoHS Compliant, Green/Halogen Free green/halogen free 3mm x 3mm 8-pin and 8-Pin and 10-Pin TDFN Package 10-pin TDFN packages. TYPICAL APPLICATION DIAGRAM Fig. 1: XRP2528 Application Diagram Exar Corporation www.exar.com 48720 Kato Road, Fremont CA 94538, USA Tel. +1 510 668-7000 Fax. +1 510 668-7001 XXRRPP22552277 -- XXRRPP22552288 Single/Dual Channel Adjustable Current Power Single/Dual Channel Adjustable Current Power DDiissttrriibbuuttiioonn SSwwiittcchh ABSOLUTE MAXIMUM RATINGS OPERATING RATINGS These are stress ratings only and functional operation of Input Voltage Range V ............................. 1.75V to 5.5V IN the device at these ratings or any other above those Junction Temperature Range .................... -40C to 125C indicated in the operation sections of the specifications Thermal Resistance ................................................. JA below is not implied. Exposure to absolute maximum TDFN-8L .................................................... 43.0C/W rating conditions for extended periods of time may affect TDFN-10L .................................................. 40.5C/W reliability. V .......................................................... -0.3V to 7.0V IN V , V ............................................................... 7.0V EN FLG Storage Temperature .............................. -65C to 150C Power Dissipation ................................ Internally Limited Lead Temperature (Soldering, 10 sec) ................... 300C ESD Rating (HBM - Human Body Model) .................... 2kV ESD Rating (MM - Machine Model) ........................... 200V ELECTRICAL SPECIFICATIONS Specifications are for an Operating Junction Temperature of T = 25C only limits applying over the full Operating Junction J 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 for reference purposes J only. Unless otherwise indicated, V = 1.8V to 5.5V, C = 47F//1 F, C = 10F, T = 40C to 125C. IN IN OUT J Parameter Min. Typ. Max. Units Conditions Input Supply Voltage 5.5 V 1.8 XRP2528, (Both Channels enabled) Input Quiescent Current 80 150 A V =5V, I = I =0mA IN OUT1 OUT2 XRP2527 and XRP2528 (1 Channel enabled) Input Quiescent Current 52 100 A V =5V, I =0mA IN OUT1 Input Shutdown Current 3 A V =5V, Channel(s) disabled IN Maximum Output Current per 1 A XRP2527 and XRP2528. RSET=100k channel Output Leakage Current 10 A V =5V, V =0V, Each channel, Switch off IN OUT Reverse Leakage Current 10 A V =0V, V =5V, Each channel, Switch off IN OUT Output MOSFET Resistance 80 140 m I =0.3A, Each channel OUT Output turn-on delay 1000 s V =5V, R =10 , C =1F, each output IN L OUT Output turn-on rise time 2000 4000 s V =5V, R =10 , C =1F, each output IN L OUT Output turn-off delay 10 20 s V =5V, R =10 , C =1F, each output IN L OUT Output turn-off fall time 22 50 s V =5V, R =10 , C =1F, each output IN L OUT 1.15 1.4 A V V =0.3V, RSET floating, USB 3.0 0.90 IN OUT Current limit threshold 0.85 1.02 A V V =0.3V, RSET tied to V USB 2.0 0.68 IN OUT IN, Current limit threshold range 0.3 1 A Current limit threshold accuracy 1 1.087 1.174 A RSET=100k for I =1A, V -V =0.3V LIM(min) IN OUT Short Circuit Current Limit 0.66xI A V =0V LIM OUT Output Voltage Short Circuit Device operates in short circuit current limit mode 925 mV Detect Threshold when output voltage is below the threshold. Safe Operating Area (SOA) 3 A Current Limit Over temperature shutdown 135 C Temperature rising threshold Over temperature shutdown 10 C Temperature decreasing threshold hysteresis Under-voltage lockout threshold 1.68 1.75 V V rising or falling 1.55 IN Under-voltage lockout hysteresis 50 mV FLG output logic low voltage 100 250 mV I =10mA, V =5.5V FLG IN FLG output high leakage 1 A 2011 Exar Corporation 2/13 Rev. 1.1.0