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Product details

Parameters

Vin (Min) (V) 2.5 Vin (Max) (V) 6.5 Continuous current (Max) (A) 1.5 Current limit (A) 0.075 to 1.7 Enable Active High Number of switches 1 Rating Catalog open-in-new Find other USB power switches & charging port controllers

Package | Pins | Size

SOT-23 (DBV) 6 5 mm² 2.9 x 1.6 WSON (DRV) 6 4 mm² 2 x 2 open-in-new Find other USB power switches & charging port controllers

Features

  • Up to 1.5-A Maximum Load Current
  • ±6% Current-Limit Accuracy at 1.7 A (Typical)
  • Meets USB Current-Limiting Requirements
  • Backwards Compatible With TPS2550 and TPS2551
  • Adjustable Current Limit: 75 mA to 1700 mA (Typical)
  • Constant-Current (TPS255x) and Latch-Off (TPS255x-1) Versions
  • Fast Overcurrent Response - 2 µs (Typical)
  • 85-mΩ High-Side MOSFET (DBV Package)
  • Reverse Input-Output Voltage Protection
  • Operating Range: 2.5 V to 6.5 V
  • Built-In Soft Start
  • 15-kV ESD Protection per IEC 61000-4-2 (With External Capacitance)
  • UL Listed – File No. E169910 and NEMKO IEC60950-1-am1 ed2.0
  • See the TI Switch Portfolio
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Description

The TPS255x and TPS255x-1 power-distribution switches are intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered and provide up to 1.5 A of continuous load current. These devices offer a programmable current-limit threshold between 75 mA and 1.7 A (typical) through an external resistor. Current-limit accuracy as tight as ±6% can be achieved at the higher current-limit settings. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff.

TPS255x devices limit the output current to a safe level by using a constant-current mode when the output load exceeds the current-limit threshold. TPS255x-1 devices provide circuit breaker functionality by latching off the power switch during overcurrent or reverse-voltage situations. An internal reverse-voltage comparator disables the power-switch when the output voltage is driven higher than the input to protect devices on the input side of the switch. The FAULT output asserts low during overcurrent and reverse-voltage conditions.

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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 4
Type Title Date
* Datasheet TPS255xx Precision Adjustable Current-Limited Power-Distribution Switches datasheet (Rev. F) Aug. 15, 2014
More literature TPS2553-1 UL Certificate of Compliance IEC 62368-1 Sep. 07, 2020
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
User guide Power-Distribution Switch with Adjustable Current-Limit EVM Oct. 08, 2008

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 TPS2552/3DBVEVM and TPS2552/3DRVEVM are evaluation modules (EVM) for Texas Instruments’family of power-distribution switches with adjustable current-limit. These EVMs operate over a 2.5 V to 6.5 V range. An onboard jumper sets the output current-limit to either 0.5 A or (...)

EVALUATION BOARD Download
49
Description

The TPS2552/3DBVEVM and TPS2552/3DRVEVM are evaluation modules (EVM) for Texas Instruments’family of power-distribution switches with adjustable current-limit. These EVMs operate over a 2.5 V to 6.5 V range. An onboard jumper sets the output current-limit to either 0.5 A or (...)

Design tools & simulation

SIMULATION MODEL Download
SLVM426A.ZIP (32 KB) - PSpice Model
SIMULATION MODEL Download
SLVM847.ZIP (26 KB) - IBIS Model
CALCULATION TOOL Download

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 6 View options
WSON (DRV) 6 View options

Ordering & quality

Information included:
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  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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