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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 Low 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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Exact equivalent in functionality and parametrics to the compared device:
TPS2552D ACTIVE 75mA - 1.5A, adjustable ILIMIT, 2.5-6.5V, Low enable, power switch, 85 mOhm, Reverse Blocking For cost constraint applications

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 7
Type Title Date
* Datasheet TPS255xx Precision Adjustable Current-Limited Power-Distribution Switches datasheet (Rev. F) Aug. 15, 2014
More literature TPS2552 UL Certificate of Compliance IEC 62368-1 Sep. 07, 2020
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Technical articles Automotive electronics design made easy Jul. 18, 2013
Technical articles John discusses benefits of LEDs in automobiles Jul. 16, 2013
Application notes USB Power Switch Reverse Current Protection Feb. 13, 2013
User guides 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 BOARDS Download
document-generic User guide
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 BOARDS Download
document-generic User guide
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 MODELS Download
SLVM421A.ZIP (33 KB) - PSpice Model
CALCULATION TOOLS Download

Reference designs

REFERENCE DESIGNS Download
85VAC-265VAC Input, 5V/2A Dual USB Phone Charger
PMP5085 — The PMP5085 reference design provides two separate 1A USB charging ports and operates over the world-wide input range of 85VAC to 265VAC. The UCC28600 green-mode controller keeps the standby power consumption below 100mW. The TPS2552 USB switches provide independent current limit protection for each (...)
Design files

CAD/CAE symbols

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

Ordering & quality

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