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Product details

Parameters

IN1 rDS(on) (Typ) (mOhm) 250 IN2 rDS(on) (Typ) (mOhms) 250 IN1 output current (Max) (A) 1.5 IN2 output current (Max) (A) 1.5 Number of Inputs 2 Rating Catalog Operating temperature range (C) -40 to 85 open-in-new Find other Power muxes

Package | Pins | Size

VQFN (RGP) 20 16 mm² 4 x 4 open-in-new Find other Power muxes

Features

  • Powered From 3.3V
  • 4.5V to 19.8V High Voltage Switch
  • 3V to 3.6V Switch
  • Adjustable Current Limit
  • Thermal Shutdown
  • Make Before Break Switch
  • High Voltage Discharge Before Low Voltage Make
  • Reverse Current Blocking
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Description

The TPS22980 is a current-limited power mux providing a connection to a peripheral device from either a low voltage supply (3.0V up to 3.6V) or a high voltage supply (5V up to 18V). The desired output is selected by digital control signals.

The high voltage (VHV) and low voltage (V3P3) switch current limits are set with external resistance. Once the current limit is reached, the TPS22980 will control the switch to maintain the current at the limit.

When the high voltage supply is not present, the TPS22980 will maintain the connection to the output from the low voltage supply. When a high voltage line and high voltage enable signal is detected by the device, the high voltage switch will be turned on in conjunction with the low voltage switch until a reverse current is detected by the low voltage switch. The low voltage switch is then disabled allowing a seamless transition from a low voltage to a high voltage supply with minimal drop and shoot-through current.

To prevent current backflow during a transition from a VHV connection to a V3P3 connection, the TPS22980 will break the VHV connection and discharge the output to approximately 3.3V. Once the output reaches 3.3V the device will connect V3P3 switch. If a load is present, the output will transition to 0V before returning to 3.3V.

The TPS22980 is available in a 4mm x 4mm x 1mm QFN package.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 6
Type Title Date
* Datasheet 3.3-V to 18-V MUX With Overcurrent Limit datasheet (Rev. C) Sep. 30, 2013
Technical articles How can a load switch extend your device’s battery life? Mar. 20, 2018
Technical articles How and why you should use load switches for power sequencing Feb. 06, 2018
Technical articles How to use load switches and eFuses in your set-top box design Nov. 23, 2017
Technical articles Don’t leave it floating! Power off your outputs with quick output discharge Dec. 09, 2016
User guide TPS22980EVM User's Guide Oct. 28, 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
49
Description
The TPS22980 evaluation module (EVM) helps designers evaluate the performance of the TPS22980 multiplexer with overcurrent limit. The TPS22980EVM allows for multiplexer test functionality. By setting enable signals, the designer can switch between low-power voltage and high-power voltage. The (...)
Features
  • Powered From 3.3-V Supply
  • 5-V to 18-V High-Voltage Switch
  • 3.3-V Switch
  • Adjustable Current Limit
  • Thermal Shutdown
  • Undervoltage Lockout
  • Make-Before-Break Switchover
  • High-Voltage Discharge Before Low-Voltage Make
  • Reverse Current Protection
  • Integrated Linear Regulator

Design tools & simulation

SIMULATION MODEL Download
SLVM734.ZIP (9 KB) - IBIS Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
QFN (RGP) 20 View options

Ordering & quality

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