TPS2561-Q1

ACTIVE

Automotive 2-ch, 0.25-2.8A adj. ILIMIT, 2.5-6.5V, 44mΩ USB power switch, active-high

Product details

Product type Adjustable current limit, Power switch Vin (min) (V) 2.5 Vin (max) (V) 6.5 Continuous current (max) (A) 2.5 Current limit (A) 0.25 to 2.5 Operating temperature range (°C) -40 to 125 Enable Active High Number of switches 2 Current limit accuracy at 1 A 7.5% (2590mA min / 3005mA max) Rating Automotive
Product type Adjustable current limit, Power switch Vin (min) (V) 2.5 Vin (max) (V) 6.5 Continuous current (max) (A) 2.5 Current limit (A) 0.25 to 2.5 Operating temperature range (°C) -40 to 125 Enable Active High Number of switches 2 Current limit accuracy at 1 A 7.5% (2590mA min / 3005mA max) Rating Automotive
VSON (DRC) 10 9 mm² 3 x 3
  • Qualified for Automotive Applications
  • Two Separate Current Limiting Channels
  • Meets USB Current-Limiting Requirements
  • Adjustable Current Limit, 250 mA–2.8 A (typ)
  • ± 7.5% Current-Limit Accuracy at 2.8 A
  • Fast Overcurrent Response - 3.5-µS (typ)
  • Two 44-mΩ High-Side MOSFETs
  • Operating Range: 2.5 V to 6.5 V
  • 2-µA Maximum Standby Supply Current
  • Built-in Soft-Start
  • 15 kV or 8 kV System-Level ESD Capable
  • UL Listed – File No. E169910
  • CB and Nemko Certified

  • Qualified for Automotive Applications
  • Two Separate Current Limiting Channels
  • Meets USB Current-Limiting Requirements
  • Adjustable Current Limit, 250 mA–2.8 A (typ)
  • ± 7.5% Current-Limit Accuracy at 2.8 A
  • Fast Overcurrent Response - 3.5-µS (typ)
  • Two 44-mΩ High-Side MOSFETs
  • Operating Range: 2.5 V to 6.5 V
  • 2-µA Maximum Standby Supply Current
  • Built-in Soft-Start
  • 15 kV or 8 kV System-Level ESD Capable
  • UL Listed – File No. E169910
  • CB and Nemko Certified

The TPS2561-Q1 is a dual-channel power-distribution switch intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered. These devices offer a programmable current-limit threshold between 250 mA and 2.8 A (typ) per channel through an external resistor. The power-switch rise and fall times are controlled to minimize current surges during turn on or off.

Each channel of the TPS2561-Q1 device limits the output current to a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. The FAULTx logic output for each channel independently asserts low during overcurrent and over temperature conditions.

The TPS2561-Q1 is a dual-channel power-distribution switch intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered. These devices offer a programmable current-limit threshold between 250 mA and 2.8 A (typ) per channel through an external resistor. The power-switch rise and fall times are controlled to minimize current surges during turn on or off.

Each channel of the TPS2561-Q1 device limits the output current to a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. The FAULTx logic output for each channel independently asserts low during overcurrent and over temperature conditions.

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TPS2557-Q1 ACTIVE Automotive 0.5-5A adjustable ILIMIT, 2.5-6.5V, 22mΩ USB power switch, active-high This product offers similar functionality in a single channel with lower RDS(on).

Technical documentation

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Type Title Date
* Data sheet Dual Channel Precision Adjustable Current-Limited Power Switch datasheet (Rev. A) 03 Aug 2012
Certificate US-37138-UL Certificate of Compliance IEC 62368-1 12 Mar 2021
Technical article Designing USB into challenging automotive applications PDF | HTML 04 Apr 2018

Design & development

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

Evaluation board

TPS2561DRCEVM-424 — TPS2561DRCEVM-424: Evaluation Module for TPS2561

The TPS2560EVM-424 and TPS2561EVM-424 are evaluation modules (EVM) for Texas Instruments power-distribution switches with adjustable current-limit. These EVMs operate over a 2.5-V to 6.5-V range. An on-board jumper sets the output current-limit to either 0.5 A or 1 A. The board is designed for the (...)

User guide: PDF
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VSON (DRC) 10 View options

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