TPS2112中文资料具有自动、慢速切换和状态输出功能的 2.8V 至 5.5V、120mΩ、0.75A 电源多路复用器数据手册TI规格书

描述 Description

The TPS211x family of power multiplexers enables seamless transition between two power supplies, such as a battery and a wall adapter, each operating at 2.8–5.5 V and delivering up to 1 A. The TPS211x family includes extensive protection circuitry, including user-programmable current limiting, thermal protection, inrush current control, seamless supply transition, cross-conduction blocking, and reverse-conduction blocking. These features greatly simplify designing power multiplexer applications.

特性 Features

• Two-Input, One-Output Power Multiplexer With Low rDS(on) Switches:
• 84 m Typ (TPS2113)
• 120 m Typ (TPS2112)

• Reverse and Cross-Conduction Blocking
• Wide Operating Voltage Range . . . .2.8 V to 5.5 V
• Low Standby Current . . . . 0.5-µA Typ
• Low Operating Current . . . . 55-µA Typ
• Adjustable Current Limit
• Controlled Output Voltage Transition Times, Limits Inrush Current and Minimizes Output Voltage Hold-Up Capacitance
• CMOS and TTL Compatible Control Inputs
• Auto-Switching Operating Mode
• Thermal Shutdown
• Available in a TSSOP-8 Package
• APPLICATIONS
• PCs
• PDAs
• Digital Cameras
• Modems
• Cell phones
• Digital Radios
• MP3 Players

简介

TPS2112属于集成电路（IC）的OR控制器理想二极管。由TI制造生产的TPS2112OR 控制器，理想二极管理想二极管控制器也称为 OR-ing 控制器，可用于以仅允许单向电流的方式控制外部通道晶体管（通常为 FET），类似于整流二极管，但传导损耗低得多。在其他应用中，它们通常用于在为了冗余和增加电流输出能力而并行连接的电源中提供逆流保护。