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TPS2070

TPS2070 Series

Pwr controller for Bus/Self Pwrd Hub w/ 5V LDO Control, 3.3V LDO, 8 pwr switches Act-Lo BPMode ind

Manufacturer: Texas Instruments

Catalog

Pwr controller for Bus/Self Pwrd Hub w/ 5V LDO Control, 3.3V LDO, 8 pwr switches Act-Lo BPMode ind

Key Features

Complete USB Hub Power SolutionMeets USB Specifications 1.1 and 2.0Independent Thermal and Short-Circuit Protection3.3-V Regulator for USB Hub ControllerOvercurrent Logic Outputs4.5-V to 5.5-V Operating RangeCMOS- and TTL-Compatible Enable Inputs185 µA Bus-Power Supply CurrentAvailable in 32-Pin HTSSOP PowerPAD™ Package-40°C to 85°C Ambient Temperature Range2PowerPAD is a trademark of Texas Instruments.Complete USB Hub Power SolutionMeets USB Specifications 1.1 and 2.0Independent Thermal and Short-Circuit Protection3.3-V Regulator for USB Hub ControllerOvercurrent Logic Outputs4.5-V to 5.5-V Operating RangeCMOS- and TTL-Compatible Enable Inputs185 µA Bus-Power Supply CurrentAvailable in 32-Pin HTSSOP PowerPAD™ Package-40°C to 85°C Ambient Temperature Range2PowerPAD is a trademark of Texas Instruments.

Description

AI
The TPS2070 and TPS2071 provide a complete USB hub power solution by incorporating four major functions: current-limited power switches for four ports, a 3.3-V 100-mA 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-mN-channel MOSFET high-side power switch for 100-mA 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. The TPS2070 and TPS2071 provide a complete USB hub power solution by incorporating four major functions: current-limited power switches for four ports, a 3.3-V 100-mA 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-mN-channel MOSFET high-side power switch for 100-mA 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.