TPS2111屬于集成電路（IC）的OR控制器理想二極管。由美國(guó)德州儀器公司制造生產(chǎn)的TPS2111OR 控制器，理想二極管理想二極管控制器也稱為 OR-ing 控制器，可用于以僅允許單向電流的方式控制外部通道晶體管（通常為 FET），類似于整流二極管，但傳導(dǎo)損耗低得多。在其他應(yīng)用中，它們通常用于在為了冗余和增加電流輸出能力而并行連接的電源中提供逆流保護(hù)。

FEATURES

Two-Input, One-Output Power Multiplexer

With Low rDS(on) Switches:

– 84 mΩ Typ (TPS2111)

– 120 mΩ Typ (TPS2110)

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

Manual and Auto-Switching Operating Modes

Thermal Shutdown

Available in a TSSOP-8 Package

APPLICATIONS

PCs

PDAs

Digital Cameras

Modems

Cell phones

Digital Radios

MP3 Players

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.