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TPS2074 Datasheet Four-port Usb Hub Power Controllers

Manufacturer: Texas Instruments

Overview: TPS2074, TPS2075 FOUR-PORT USB HUB POWER CONTROLLERS SLVS288A – SEPTEMBER 2000 – REVISED FEBRUARY 2001 D Complete USB Hub Power Solution D Meets USB Specifications 1.1 and 2.0 D Independent Thermal and Short-Circuit Protection D 3.3-V Regulator for USB Hub Controller D Overcurrent Logic Outputs D 4.5-V to 5.

General Description

DB PACKAGE (TOP VIEW) PG_DLY 1 EN1 2 AGND 3 PG 4 SP 5 SP 6 NC 7 3.3V_OUT 8 BPMODE† 9 DP0_RST 10 EN2 11 DGND 12 24 BP_DIS 23 BP 22 OUT1 21 OUT2 20 OUT3 19 OUT4 18 OC4 17 OC3 16 OC2 15 OC1 14 EN4 13 EN3 The TPS2074 and TPS2075 provide a complete USB hub power solution by incorporating three major functions: current-limited power switches for four ports, a 3.3-V 100-mA regulator, and a DP0 line control to signal attach/detach of the hub.

These devices are designed to meet bus-powered and self-powered hub requirements.

These devices are also designed for hybrid hub implementations and allow for automatic switching from self-powered mode to bus-powered mode if loss of self-power is experienced.

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