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2.7V-18V Automotive Current-Limited Load Switch with Current Sense & Short-to-Battery Protection

Availability: 827


Package | PIN: WQFN (RVC) | 20
Temp: Q (-40 to 125)
Package qty | Carrier: 250 | SMALL T&R
Qty Price
1-99 $1.77
100-249 $1.55
250-999 $1.09
1,000+ $0.88


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to
      +125°C Ambient Operating Temperature Range
    • Device HBM ESDClassification Level 2
    • Device CDM ESD Classification LevelC5
  • 2.7-V to 18-V Operating Voltage, 20 V (Maximum)
  • Total RON: 42 mΩ (Typical)
  • 0.6-A to 5.3-A Adjustable Current Limit (±8%)
  • IMON Current Indicator Output (±8%)
  • Adjustable Under-, Overvoltage Threshold (±2%)
  • Reverse Current Blocking
  • 1-µs Reverse Voltage Shutoff
  • Programmable dVo/dt Control
  • Power Good and Fault Outputs
  • Short-to-Battery Protection
  • Short-to-Ground Protection
  • TPS25940-Q1: Auto-Retry
  • TPS25940L-Q1: Latch-Off

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Texas Instruments  TPS25940AQRVCTQ1

The TPS25940x-Q1 eFuse Power Switches are compact,feature rich power management devices with a full suite of protection functions. The wide operatingrange allows control of many popular DC bus voltages. Integrated back-to-back FETs providebidirectional current control making the device well suited for systems with load side holdupenergy that must not drain back to a failed supply bus.

Load, source and device protection are provided with many programmable features includingovercurrent, dVo/dt ramp and overvoltage, undervoltage thresholds. Forsystem status monitoring and downstream load control, the device provides PGOOD,FLT and precise current monitor output. Precise programmable undervoltage,overvoltage thresholds and mode simplify power management design.

The TPS25940x-Q1 monitor V(IN) and V(OUT)to provide true reverse current blocking when V(IN) <(V(OUT) – 66 mV). This function supports supply bus protection fromover-voltages during output short to battery faults.