TPS2070DAP集成电路（IC）的电源管理-专用规格书PDF中文资料

TPS2070DAP属于集成电路（IC）的电源管理-专用。由德州仪器制造生产的TPS2070DAP电源管理 - 专用专用型电源管理集成电路 (PMIC) 用于电源的控制或操作，适合特定或小范围的目标应用，例如汽车气囊管理、电容器组平衡、AC 公共电力监控、存储器总线端接、接地故障检测、能量收集、小型引擎管理、处理器或芯片集专用电压调节、负载突降保护、触觉驱动器、热电制冷器控制等。

Complete 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-Compatible Enable Inputs

185 μA Bus-Power Supply Current

Available in 24-Pin SSOP Package

–40°C to 85°C Ambient Temperature Range

description

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. This

feature can be disabled by applying a logic high to

the BP_DIS input

Each port has a current-limited 100-mΩ Nchannel

MOSFET high-side power switch for

500 mA self-powered operation. Each port also

has a current-limited 500-mΩ N-channel MOSFET

high-side power switch for 100-mA buspowered

operation. All the N-channel MOSFETs

are designed without parasitic diodes, preventing

current backflow into the inputs.

For applications where a 5-V regulator is needed,

use the TPS2070 or TPS2071 device.