IR3510
DESCRIPTION
The IR3510 Hot-Swap N+1 Redundant X-Phase TM Controller bines input isolation control for hotswappable applications, X-Phase TM VRM/VRD control and active output ORing control for N+1 redundant applications. It interfaces directly with microcontroller and X-Phase TM phase ICs to provide a full-featured and flexible solution for powering high-end CPUs and servers. The IR3510 continuously monitors the 12V input current and VRM output voltage. Once the input current exceeds the programmable threshold, it goes into current limit mode and turns off the input MOSFETs after the OC delay times out. It immediately turns off the input MOSFETs when an over voltage (OV) condition is detected on the VRM output. It also has UVLO for both the 12V input and the supply voltage to the VRM. The IR3510 has built-in active ORing control function for N+1 redundant applications. When the VRM output voltage is higher than the output voltage bus, it turns on the ORing MOSFETs; When the VRM output is...
