e-Fuse Power Switch with DevSleep SATA Interface


Design files


TPS25940A provides a dedicated DevSleep interface terminal (DEVSLP) to force the device in low power mode. The DEVSLP pin is compatible with standard hardware signals asserted from the host controller. When pulled high, it puts the device in low power DevSleep mode. In this mode, the quiescent current consumption of the TPS25940A is limited 95 µA typical. The key challenge that DevSleep feature of TPS25940A overcome, is to keep the device active, even when the device is forced in DeVSleep mode, the output voltage remains active and overload current limit is set to I(DEVSLP(LIM). Also, all other protections are still active and ensuring the safety of the system even in DevSleep mode.

  • A dedicated DevSleep interface terminal (DEVSLP) to force the device in low power mode
  • 95uA quiescent current consumption During DevSleep Mode
  • Output voltage and other protection features remains active even when device is in DevSleep Mode
  • No external controller and circuitry required
Output voltage options TIDA-00429.1
Vin (Min) (V) 2.7
Vin (Max) (V) 18
Vout (Nom) (V) 12
Iout (Max) (A) 500
Output Power (W) 6000
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Hot Swap

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDRD03.PDF (40 K)

Detailed schematic diagram for design layout and components

TIDRD04.PDF (62 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRD05.PDF (220 K)

Detailed overview of design layout for component placement

TIDC918.ZIP (206 K)

Design file that contains information on physical board layer of design PCB


Includes TI products in the design and potential alternatives.

eFuses & hot swap controllers

TPS259402.7-V to 18-V, 42mΩ, 0.6-5.2A eFuse with reverse current blocking and DevSleep support

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
User guide TIDA-00429 Test Results Feb. 20, 2015

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