TPS2114
TPS2115
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1
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4
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5
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www.ti.com
SLVS447A–DECEMBER 2002–REVISED MARCH 2004
AUTOSWITCHING POWER MULTIPLEXER
FEATURES
•
Available in a TSSOP-8 Package
•
Two-Input, One-Output Power Multiplexer
With Low rDS(on) Switches:
APPLICATIONS
•
•
•
•
•
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PCs
PDAs
– 84 mΩ Typ (TPS2115)
– 120 mΩ Typ (TPS2114)
Digital Cameras
Modems
Cell phones
Digital Radios
MP3 Players
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Reverse and Cross-Conduction Blocking
Wide Operating Voltage Range: 2.8 V to 5.5 V
Low Standby Current: 0.5 µA Typical
Low Operating Current: 55 µA Typical
Adjustable Current Limit
PW PACKAGE
(TOP VIEW)
Controlled Output Voltage Transition Times,
Limits Inrush Current and Minimizes Output
Voltage Hold-Up Capacitance
1
2
3
4
8
7
6
5
STAT
D0
IN1
OUT
IN2
•
•
•
CMOS and TTL Compatible Control Inputs
Manual and Auto-Switching Operating Modes
Thermal Shutdown
D1
ILIM
GND
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.
TYPICAL APPLICATION
Switch Status
IN1: 2.8 - 5.5 V
TPS2115PW
R1
0.1 µF
1
2
3
4
8
7
6
5
IN1
OUT
IN2
STAT
D0
D1
R
L
C
L
ILIM
GND
R
ILIM
IN2: 2.8 - 5.5 V
0.1 µF
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.
Copyright © 2002–2004, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.