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TPS24742 2.5 to 18-V High Performance Hot Swap and ORing Controller


Package | PIN: RGE | 24
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $5.78
10-24 $5.20
25-99 $4.86
100-249 $4.36
250-499 $4.07
500-749 $3.54
750-999 $3.06
1000+ $3.00


  • 2.5V to 18V Bus Operation (30V abs max)
  • Programmable Protection Settings:
    • Current Limit: ±5% at 10mV
    • Fast Trip: ±10% at 20mV
    • Reverse Voltage: ±1mV at –1 mV
  • Programable Response Time for Fast Trip and
    Reverse Voltage
  • Programmable FET SOA Protection
  • Dual Timer (Inrush/Fault)
  • Interchangeable Hot Swap and ORing
  • Analog Current Monitor (1% at 25mV)
  • Status Flags for Faults and Power Good
  • UV and OV Protection
  • Independent EN for Hot Swap and ORing
  • 4mm × 4mm 24-pin QFN
  • 40 = Latch, 41 = Retry, 42 = Fast Latch Off

Texas Instruments  TPS24742RGER

The TPS2474x is an integrated ORing and Hot Swap controller for 2.5 V to 18 V systems. It's precise and programmable protection settings aid in the design of high power, high availability systems where isolating faults is critical.

Programmable current limit, fast shut down, and fault timer protect the load and supply during fault conditions such as a hot - short. The fast shutdown threshold and response time can be tuned to ensure a fast response to real faults, while avoiding nuisance trips. Programmable SOA (Safe Operating Area) protection and the inrush timer keep the MOSFET safe under all operating conditions. After asserting a power good, TPS2474x runs the fault timer during over-current events, but doesn’t current limit. It shuts down after the fault timer expires. Two independent timers (inrush/fault) allow the user to customize protection based on system requirements. The ORing function of the TPS2474x allows the user to program the reverse voltage threshold and response time to aid in the design of redundant power supply systems.