TPS2071中文资料用于总线/自供电集线器的电源控制器，具有 5V LDO 控制、3.3V LDO、8 个电源开关以及高电平有效 BPMode 指示器数据手册TI规格书

描述 Description

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-m N-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.

特性 Features

• Complete USB Hub Power Solution
• Independent Thermal and Short-Circuit Protection
• Overcurrent Logic Outputs
• CMOS- and TTL-Compatible Enable Inputs
• Available in 32-Pin HTSSOP PowerPAD™ Package
• -40°C to 85°C Ambient Temperature Range
2PowerPAD is a trademark of Texas Instruments.