Diodes Incorporated

ZXGD3111N8 (Obsolete)

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ZXGD3111N8 is a 200V Active OR-ing MOSFET controller designed for driving a very low RDS(ON) Power MOSFET as an ideal diode. This replaces the standard rectifier to reduce the forward voltage drop and overall increase the power transfer efficiency.

The ZXGD3111N8 can be used on both high-side and low-side power supply units (PSU) with rails up to ±200V. It enables very low RDS(ON) MOSFETs to operate as ideal diodes as the turn-off threshold is only 3mV with ±2mV tolerance. In the typical 48V configuration, the standby power consumption is <50mW as the low quiescent supply current is <1mA. During PSU fault condition, the OR-ing Controller detects the power reduction and rapidly turns off the MOSFET in <600ns to block reverse current flow and avoid the common bus voltage dropping.


  • Active OR-ing MOSFET Controller for High- or Low-Side PSU
  • Ideal Diode to Reduce Forward Voltage Drop
  • -3mV Typical Turn-Off Threshold with ±2mV Tolerance
  • 200V Drain Voltage Rating
  • 25V VCC Rating
  • <50mW Standby Power with Quiescent Supply Current <1mA
  • <600ns Turn-Off Time to Minimize Reverse Current
  • Totally Lead-Free & Fully RoHS compliant
  • Halogen and Antimony free. “Green” Device


  • Active OR-ing Controller in:
    • (N + 1) Redundant Power Supplies
    • Telecom and Networking
    • Data Centers and Servers

Product Specifications

Product Parameters

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Technical Documents

Recommended Soldering Techniques


Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2453 2020-04-07 2020-10-07 Device End of Life (EOL)