TPS2071 Datasheet | Texas Instruments

FEATURES - 2 plete USB Hub Power Solution - Meets USB Specifications 1.1 and 2.0 - Independent Thermal and Short-Circuit Protection - 3.3-V Regulator for USB Hub Controller - Overcurrent Logic Outputs - 4.5-V to 5.5-V Operating Range - CMOS- and TTL-patible Enable Inputs - 185 μA Bus-Power Supply Current - Available in 32-Pin HTSSOP Power PAD™ Package - - 40°C to 85°C Ambient Temperature Range DESCRIPTION The TPS2070 and TPS2071 provide a plete USB hub power solution by incorporating four major functions: current-limited power switches for four ports, a 3.3-V 100-m A regulator, a 5-V regulator controller for self-power, 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 (can be disabled by applying a logic high to BP_DIS). Each port has a current-limited 107-mΩ N-channel MOSFET high-side power switch for 500-m A self-powered operation. Each port also has a current-limited 560-mΩ N-channel MOSFET high-side power switch for 100-m A bus-powered operation. All the N-channel MOSFETs are designed without parasitic diodes, preventing current backflow into the inputs. For applications not requiring a 5-V regulator controller, use the TPS2074 or TPS2075 device. DAP Package (Top View) NC EN1 AGND NC PG SP SP NC VEXT GATE 3.3V_OUT BPMODE(1) DP0_RST EN_REG EN2 DGND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 PG_DLY 31 BP_DIS 30 BP 29 OUT1 28 OUT2 27 OUT3 26 OUT4 25 OC4 24 OC3 23 OC2 22 OC1 21 EN4 20 EN3 19 CP_M 18 CP_P 17 VCP - No internal connection (1) Pin 12 is active-low (BPMODE) for TSS2070 and active-high (BPMODE) for TPS2071.(1) P0073-01 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and...