UPD16855A

DATA SHEET µPD16855A/B/C/D DUAL HIGH-SIDE SWITCH FOR USB APPLICATION MOS INTEGRATED CIRCUIT DESCRIPTION This product is the power switch IC with over current limit, used for the power supply bus of the Universal-SerialBus (USB). 2 circuit builds in the Pch power MOSFET in the switch part, and this product realizes low on resistance (100 mΩ TYP.) respectively. And the over current detection, the thermal-shutdown circuit, an under voltage locked-out (UVLO) circuit whose functions are necessary in the Host/HUB-controller of the USB standard are built in. And the over-current-detect result can be reported to the controller by flag-pin. This product builds in each two circuits of the power switch, control-pins and flag-pins, and this IC can be able to control the power supply bus in 2 USB port. There are four kinds of this product by the input logic of the control signal and switch operation in over-current detect. FEATURES Pch power MOSFET, 2 circuit building in Over-current detection circuit is built in and its result is outputted from flag-pin (“L” active) Prevent from dropping power supply by over current limit circuit Thermal shutdown circuit building in Under Voltage Locked Out (UVLO) circuit building in Switch on/off control is possible by the control-pin. 8 pin DIP/SOP package ORDERING INFORMATION PART NO. PACKAGE 8-pin plastic DIP (300mil) 8-pin plastic SOP (225mil) 8-pin plastic SOP (225mil) 8-pin plastic SOP (225mil) 8-pin plastic SOP (225mil) µPD168...