TPS2115A-Q1 Datasheet, PDF (1/20 Pages) Texas Instruments – AUTO-SWITCHING POWER MULTIPLEXER

TPS2115A-Q1
www.ti.com........................................................................................................................................................................................... SBVS124 – NOVEMBER 2008
AUTO-SWITCHING POWER MULTIPLEXER
FEATURES
1
• Qualified for Automotive Applications
• Two-Input One-Output Power Multiplexer With
Low r_DS(on) Switch...84 mΩ (Typ)
• 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
Limit Inrush Current and Minimize Output
Voltage Hold-Up Capacitance
• CMOS- and TTL-Compatible Control Inputs
• Manual and Auto-Switching Operating Modes
• Thermal Shutdown
• Available in TSSOP-8 (PW) Package
APPLICATIONS
• PCs
• PDAs
• Digital Cameras
• Modems
• Cell Phones
• Digital Radios
• MP3 Players
PW PACKAGE
(TOP VIEW)
STAT
1
8
D0
2
7
D1
3
6
ILIM
4
5
IN1
OUT
IN2
GND
DESCRIPTION/ORDERING INFORMATION
The TPS2115A power multiplexer enables seamless transition between two power supplies, such as a battery
and a wall adapter, each operating at 2.8 V to 5.5 V and delivering up to 1 A. The TPS2115A 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.
IN1
2.8 V to 5.5 V
TPS2115A
1
STAT
NC ² D0
3
D1
4
ILIM
R_ILIM
IN1 ⁸
OUT ⁷
IN2 ⁶
GND ⁵
0.1 µF
Switch Status
R1
C_L
R_L
IN2
2.8 V to 5.5 V
C2
0.1 µF
Figure 1. Typical Application
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008, Texas Instruments Incorporated