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The RT1987 provides an ideal diode reverse current blocking function with low forward voltage and an enable input for disconnection. The 3.4V to 32V input operating range and 8A continuous current rating make the RT1987 well suited for multi-port USB-C sink current applications. In addition, this part includes a 40V Absolute Maximum Rating (AMR), a 20A peak current rating (up to 10ms), undervoltage-lockout, overvoltage protection, and over-temperature protection.An adjustable soft-start circuit sets the output voltage slew rate and manages inrush current into high capacitance loads. Short-circuit protection is provided during this period, while the integrated MOSFET provides a low forward voltage drop and high Safe Operating Area (SOA).The RT1987 is available in a VDFN-12T1L 3x3 package and can operate over -40°C to 125°C junction temperature.

Applications

  • USB-C/Thunderbolt Sink Power Delivery
  • Docking Stations
  • Power ORing Applications
Key Spec.
RT1987
Status Active
Input Current Sense 10
Current Limit 10
Features Adjustable Soft-Start;Enable Input;OVP;SCP;UVP
Package Type VDFN3x3-12T1
Features
  • 8A Continuous/20A Peak Current Capability
  • Input Supply Voltage: 3.4V to 32V
  • 20mΩ (typical) RON
  • Analog Ideal Diode Gate Control
    - Blocks Reverse Current
    - Avoids Switch Chatter
    - Enables Fast Power Swap
  • Programmable Soft-Start
  • Programmable Overvoltage Protection
  • Over-Temperature Protection
  • Start-Up Short-Circuit Protection
  • Compliance with IEC 61000-4-2 and IEC 61000-4-5 Standards
Datasheet
TitleVersionLast UpdateDownload
RT1987: 32V/8A Ideal Diode Protection SwitchInitial Release2024/09/20
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