Overview
The TPS2413DR, produced by Texas Instruments, is an N+1 and ORing power rail controller designed to manage multiple power supplies in redundant configurations. This controller, in conjunction with an external N-channel MOSFET, emulates the function of a low forward voltage diode, making it ideal for applications requiring high reliability and minimal power loss.
The device supports a wide supply voltage range from 3 V to 16.5 V and can control buses from 0.8 V to 16.5 V. It features an internal charge pump for the N-channel MOSFET, rapid device turnoff to protect bus integrity, and soft turnon to reduce bus transients. The TPS2413DR is available in 8-pin TSSOP and SOIC packages and operates over an industrial temperature range of –40°C to 85°C.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOIC (D), 8 pins |
| Operating Temperature Range | –40°C to 85°C |
| Supply Voltage Range | 3 V to 16.5 V |
| Bus Voltage Range | 0.8 V to 16.5 V |
| Gate Control Method | On/Off control |
| Internal Charge Pump | For N-channel MOSFET |
| Turnoff Threshold | Programmable via RSET resistor |
| Gate Current | Up to 290 μA |
| Thermal Shutdown Temperature | 135°C |
Key Features
- Control External FET for N+1 and ORing configurations
- Wide Supply Voltage Range of 3 V to 16.5 V
- Controls Buses From 0.8 V to 16.5 V
- On/Off control method
- Internal Charge Pump for N-channel MOSFET
- Rapid Device Turnoff to protect bus integrity
- Positive Gate Control on Hot Insertion
- Soft Turnon to reduce bus transients
- Industrial Temperature Range: –40°C to 85°C
- Available in 8-pin TSSOP and SOIC packages
Applications
The TPS2413DR is suitable for a wide range of systems, including:
- Servers (Rackmount and Blade)
- Merchant network and server power supplies
- Battery Backup Units
- Telecom systems
These applications often require N+1 redundant power supplies or redundant power buses, where the TPS2413DR helps prevent reverse current during faults and hotplug scenarios.
Q & A
- What is the primary function of the TPS2413DR?
The TPS2413DR is an N+1 and ORing power rail controller that, in conjunction with an external N-channel MOSFET, emulates the function of a low forward voltage diode.
- What is the operating temperature range of the TPS2413DR?
The operating temperature range is –40°C to 85°C.
- What are the package options for the TPS2413DR?
The device is available in 8-pin TSSOP and SOIC packages.
- How does the TPS2413DR control the external MOSFET?
The TPS2413DR uses an on/off control method to control the external MOSFET.
- What is the purpose of the internal charge pump in the TPS2413DR?
The internal charge pump is used to drive the gate of the external N-channel MOSFET.
- How is the turnoff threshold programmed in the TPS2413DR?
The turnoff threshold is programmed via a resistor connected to the RSET pin.
- What types of applications benefit from using the TPS2413DR?
Applications include servers, telecom systems, merchant network and server power supplies, and battery backup units, particularly those requiring N+1 redundant power supplies or redundant power buses.
- How does the TPS2413DR protect bus integrity?
The device features rapid device turnoff to protect bus integrity during faults and hotplug scenarios.
- What is the significance of soft turnon in the TPS2413DR?
Soft turnon reduces bus transients, ensuring smoother operation during power-up.
- How does the TPS2413DR compare to using a Schottky diode?
The TPS2413DR and an external MOSFET provide a lower forward voltage drop compared to a Schottky diode, resulting in less power loss.
