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Automotive Precision Adjustable Current-Limited Power-Distribution Switch


Package | PIN: DRC | 10
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $2.50
10-24 $2.25
25-99 $2.10
100-249 $1.84
250-499 $1.72
500-749 $1.46
750-999 $1.24
1000+ $1.18


  • Qualified for Automotive Applications AEC-Q100
    Qualified With the Following Results:
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C5
  • 2.5 to 6.5 V Operating Range
  • Adjustable 1.2 to 4.7 A I(LIMIT) (±4.7% at 4.7 A)
  • 3.5 µs Short Circuit Shutoff (Typical)
  • 13-mΩ High-Side MOSFET
  • 2-µA Maximum Standby Supply Current
  • Built-in Soft-Start
  • Reverse Current Blocking when Disabled
  • 8 kV / 15 kV System-Level ESD Capable
  • 10-Pin SON (3-mm × 3-mm) Package with
    Wettable Flanks

Texas Instruments  TPS2559QWDRCRQ1

The TPS2559-Q1 power-distribution switch is intended for applications where a low resistance, precision current limit switch is required or heavy capacitive loads are encountered. The TPS2559-Q1 provides up to 5.5 A of continuous load current with a precise current limit set by a single resistor to ground. Output current is maintained at a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. During overload events the output current is limited to the level set by R(ILIM). If a persistent overload occurs, the device goes into thermal shutoff to prevent damage to the TPS2559-Q1.

The power-switch rise and fall times are controlled to minimize current surges during turn on or off. The FAULT logic output asserts low during overcurrent or overtemperature conditions.