ZXGD3108N8

Description

ZXGD3108N8 is a 40V Active OR-ing MOSFET controller designed for driving a very low R_DS(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 ZXGD3108N8 can be used on both high-side and low-side power supply units (PSU) with rails up to ±40V. It enables very low R_DS(ON) MOSFETs to operate as ideal diodes as the turn-off threshold is only ‑3mV with ±2mV tolerance.  In the typical 12V configuration, the standby power consumption is <5mW as the low quiescent supply current is <400µA.  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.

Feature(s)

• 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
• 40V Drain Voltage Rating
• 25V V_CC Rating
• <5mW Standby Power with Quiescent Supply Current <400µA
• <600ns Turn-Off Time to Minimize Reverse Current
• Totally Lead-Free & Fully RoHS compliant
• Halogen and Antimony free. “Green” Device

Application(s)

Active OR‘ing Controller in:

• (N + 1) Redundant Power Supplies
• Telecom and Networking
• Data Centers and Servers