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-48V Hot Swap with Insertion and Removal Detection Delay


Package | PIN: PW | 14
Temp: I (-40 to 85)
Carrier: Partial Tube
Qty Price
1-9 $3.86
10-24 $3.48
25-99 $3.24
100-249 $2.84
250-499 $2.66
500-749 $2.26
750-999 $1.91
1000+ $1.82


  • Wide Input Supply Range: –20 V to –80 V
  • Transient Rating to –100 V
  • Insertion/Removal Detection Delay
  • Extended Debounce Delay
  • Programmable Current Limit
  • Programmable Current Slew Rate
  • Programmable UV/OV Thresholds/Hysteresis
  • Open-Drain Power Good (PG)\ Output
  • Fault Timer to Eliminate Nuisance Trips
  • Open-Drain Fault Output (FAULT)\
  • 14-Pin TSSOP package
    • –48-V Distributed Power Systems
    • Central Office Switching
    • Wireless Base Station

Texas Instruments  TPS2393APW

The TPS2393A integrated circuit is a hot swap power manager optimized for use in nominal –48-V systems. It operates with supply voltage ranges from –20-V to –80-V, and is rated to withstand spikes to –100 V. In conjunction with an external N-channel FET and sense resistor, it can be used to enable live insertion of plug-in cards and modules in powered systems. It provides load current slew rate control and peak magnitude limiting. Undervoltage and overvoltage shutdown thresholds are easily programmed via a three-resistor divider network. In addition, two active-low, debounced inputs provide plug-in insertion and removal detection. The associated debounce delay applies to both actions. A power good (PG)\ output enables downstream converters. The TPS2393A also provides the basic hot swap functions of electrical isolation of faulty cards, filtered protection against nuisance overcurrent trips, and single-line fault reporting.

The TPS2393A periodically retries the load in the event of a fault.