SP2526

® SP2526 +3.0V to +5.5V USB Power Control Switch s Compliant to USB Specifications s +3.0V to +5.5V Input Voltage Range s Two Independent Power Switches s Two Error Flag Outputs, Open Drain s 2.7V Undervoltage Lockout s 500mA Minimum Continuous Load Current Per Switch s 1.25A Short Circuit Current Limit s 140mΩ Maximum On-Resistance s 80µA On-State Supply Current s 1µA Shutdown Current s Output Can Be Forced Higher Than Input (Off-State) s Thermal Shutdown s 1ms Soft-Start Power Up s Active-High Version: SP2526-1 s Active-Low Version: SP2526-2 DESCRIPTION The SP2526 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 (80mΩ typical) and can supply 500mA minimum. The fault currents are limited to 2.0A typical and the flag output pin for each switch is available to indicate fault conditions to the USB controller. The 1ms soft start will eliminate any momentary voltage droop on the upstream port that may occur when the switch is enabled in bus-powered applications. 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. ENA FLGA FLGB ENB 1 2 3 4 SP2526 8 7 6 5 OUTA IN GND OUTB Rev. 8/21/01 SP2526 +3.0V to +5.5V USB Power Control Switch © Copyright 2001 Sipex Corporation ...