The TPS2410/11 controller, in conjunction with an external N-channel MOSFET, emulates the function of a low forward-voltage diode. The TPS2410/11 can be used to combine multiple power supplies to a common bus in an N+1 configuration, or to combine redundant input power buses. The TPS2410 provides a linear turn-on control while the TPS2411 has an on/off control method.

Applications for the TPS2410/11 include a wide range of systems including servers and telecom. These applications often have either N+1 redundant power supplies, redundant power buses, or both. These redundant power sources must have the equivalent of a diode OR to prevent reverse current during faults and hotplug. A TPS2410/11 and N-channel MOSFET provide this function with less power loss than a schottky diode.

Accurate voltage sensing, programmable fast turn-off threshold, and input filtering allow operations to be tailored for a wide range of implementations and bus characteristics.

A number of monitoring features are provided to indicate voltage bus UV/OV, ON/OFF state, and a shorted MOSFET gate.

• Control External FET for N+1 and ORing
• Wide Supply Voltage Range of 3 V to 16.5 V
• Controls Buses From 0.8 V to 16.5 V
• Linear or On/Off Control Method
• Internal Charge Pump for N-Channel MOSFET
• Rapid Device Turnoff Protects Bus Integrity
• Positive Gate Control on Hot Insertion
• Soft Turn on Reduces Bus Transients
• Input Voltage Monitoring
• Shorted Gate Monitor
• MOSFET Control-State Indicator
• Industrial Temperature Range: -40°C to 85°C
• Industry-Standard 14-Pin TSSOP Package
• APPLICATIONS
  • N+1 Power Supplies
  • Server Blades
  • Telecom Systems
  • High Availability Systems