Home Power management USB power switches & charging port controllers
Home
Power management
USB power switches & charging port controllers

TPS2557-Q1

ACTIVE

Automotive 0.5-5A adjustable ILIMIT, 2.5-6.5V, 22mΩ USB power switch, active-high

Order now
Data sheet

TPS2557-Q1

ACTIVE
Data sheet Order now

Product details

Product type Adjustable current limit, Power switch Vin (min) (V) 2.5 Vin (max) (V) 6.5 Continuous current (max) (A) 5 Current limit (A) 0.5 to 5.0 Operating temperature range (°C) -40 to 125 Enable Active High Number of switches 1 TI functional safety category Functional Safety-Capable Current limit accuracy at 1 A 7.0% (4100mA min / 4715mA max) Rating Automotive
Product type Adjustable current limit, Power switch Vin (min) (V) 2.5 Vin (max) (V) 6.5 Continuous current (max) (A) 5 Current limit (A) 0.5 to 5.0 Operating temperature range (°C) -40 to 125 Enable Active High Number of switches 1 TI functional safety category Functional Safety-Capable Current limit accuracy at 1 A 7.0% (4100mA min / 4715mA max) Rating Automotive
VSON (DRB) 8 9 mm² 3 x 3
  • AEC-Q100 Qualified
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C5
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Meets USB current-limiting requirements
  • Adjustable current limit, 500 mA – 5 A (typ.)
  • ±6.5% current-limit accuracy at 4.5 A
  • Fast short-circuit response – 3.5 µs (typ.)
  • 22-mΩ high-side MOSFET
  • Operating range: 2.5 V to 6.5 V
  • 2-µA maximum standby supply current
  • Built-in soft-start
  • 15-kV and 8-kV system-level ESD capable
  • Safety-related certifications:
    • UL Recognized for UL 2367
    • CB Certification for IEC 60950
    • CB Certification for IEC 62368
  • AEC-Q100 Qualified
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C5
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Meets USB current-limiting requirements
  • Adjustable current limit, 500 mA – 5 A (typ.)
  • ±6.5% current-limit accuracy at 4.5 A
  • Fast short-circuit response – 3.5 µs (typ.)
  • 22-mΩ high-side MOSFET
  • Operating range: 2.5 V to 6.5 V
  • 2-µA maximum standby supply current
  • Built-in soft-start
  • 15-kV and 8-kV system-level ESD capable
  • Safety-related certifications:
    • UL Recognized for UL 2367
    • CB Certification for IEC 60950
    • CB Certification for IEC 62368

The TPS2556-Q1 and TPS2557-Q1 power-distribution switches are specialized for automotive applications which require precision current limiting or capacity to handle heavy capacitive loads and short circuits. These devices offer a programmable current-limit threshold between 500 mA and 5 A (typical) via an external resistor. Control of the power-switch rise and fall times minimizes current surges during turnon or turnoff.

TPS2556-Q1 and TPS2557-Q1 devices limit the output current to a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. The FAULT logic output asserts low during overcurrent and overtemperature conditions.

Use with the TPS2511-Q1 or TPS2513A-Q1 for a low-loss, automotive-qualified, USB charging-port solution capable of charging all of today’s popular phones and tablets.

The TPS2556-Q1 and TPS2557-Q1 power-distribution switches are specialized for automotive applications which require precision current limiting or capacity to handle heavy capacitive loads and short circuits. These devices offer a programmable current-limit threshold between 500 mA and 5 A (typical) via an external resistor. Control of the power-switch rise and fall times minimizes current surges during turnon or turnoff.

TPS2556-Q1 and TPS2557-Q1 devices limit the output current to a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. The FAULT logic output asserts low during overcurrent and overtemperature conditions.

Use with the TPS2511-Q1 or TPS2513A-Q1 for a low-loss, automotive-qualified, USB charging-port solution capable of charging all of today’s popular phones and tablets.
filter Find other USB power switches & charging port controllers
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
TPS2556-Q1 ACTIVE Automotive 0.5-5A adjustable ILIMIT, 2.5-6.5V, 22mΩ USB power switch, active-low This product offers the same functionality and pinout with enable active-low.

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 6
Type Title Date
* Data sheet TPS255x-Q1 Precision Automotive Adjustable Current-Limited Power-Distribution Switches datasheet (Rev. B) PDF | HTML 23 Sep 2020
Certificate TPS2556, TPS2557 UL Certificate of Compliance IEC 62368-1 (Rev. A) 24 Jun 2024
Functional safety information TPS2556-Q1, TPS2557-Q1 Functional Safety FIT Rate and Failure Mode Distribution (Rev. A) PDF | HTML 20 Jul 2020
Application note How to Pass MFi Overcurrent Protection Test With USB Charger and Switch Device PDF | HTML 26 Feb 2020
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
EVM User's guide Using the TPS2556/7EVM 19 Nov 2009

Design & development

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

Evaluation board

TPS2557DRBEVM-423 — TPS2557DRBEVM-423: Evaluation Module for TPS2557

The TPS2556EVM-423 and TPS2557EVM-423 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
Not available on TI.com
Simulation model

TPS2557 TINA-TI Transient Reference Design

SLVM494.TSC (635 KB) - TINA-TI Reference Design
Download
Simulation model

TPS2557 TINA-TI Transient Spice Model

SLVM495.ZIP (22 KB) - TINA-TI Spice Model
Download
Simulation model

TPS2557 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM409A.ZIP (31 KB) - PSpice Model
Download
Reference designs

PMP21771 — 30-W power for automotive dual USB Type-C® charge port reference design

This reference design uses an LM61460-Q1 synchronous buck regulator that provides current of 6 A to two TPS2557-Q1 load switch channels to provide 30 W of total power to dual USB Type-C® charge ports. This is designed for high-power efficiency and thermal performance and comes in a small size. The (...)
Test report: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
VSON (DRB) 8 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

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

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos