Overview
The TPS2413PWRG4, produced by Texas Instruments, is an N+1 and ORing power rail controller designed to emulate the function of a low forward voltage diode in conjunction with an external N-channel MOSFET. This controller is particularly useful in applications requiring redundant power supplies or power buses, such as rack servers, telecom systems, and battery backup units. The TPS2413 features an on/off gate control method, distinguishing it from the TPS2412 which uses a linear turn-on control. This device operates over a wide temperature range of -40°C to 85°C and is available in 8-pin TSSOP and SOIC packages.
Key Specifications
| Parameter | Description |
|---|---|
| Package | 8-Pin TSSOP and SOIC |
| Package Size | TSSOP: 4.40 mm × 3.00 mm, SOIC: 3.91 mm × 4.90 mm |
| Operating Temperature | -40°C to 85°C |
| VDD Range | ≥3 V |
| Gate Control | On/Off control with programmable turnoff threshold |
| Voltage Monitoring | Accurate voltage sensing with adjustable turnoff threshold |
| MOSFET Fault Monitoring | Includes MOSFET fault monitoring and status pin |
| Enable Control | Enable control for the gate of the external MOSFET |
Key Features
- On/off gate control with programmable turnoff threshold, allowing for tailored operation in various implementations.
- Accurate voltage sensing and adjustable turnoff threshold to prevent reverse current during faults and hotplug scenarios.
- Low power loss compared to traditional Schottky diodes, achieved through the use of an external N-channel MOSFET.
- Fast comparator filtering and voltage monitoring to ensure stable operation.
- MOSFET fault monitoring and status pin for enhanced reliability and diagnostics.
- Enable control for the gate of the external MOSFET, providing additional control over the power rail.
Applications
- Rack servers (rackmount and blade servers)
- Merchant network and server power supplies
- Battery backup units
- Telecom systems
- Redundant power supply systems and power buses in various industrial and commercial applications.
Q & A
- What is the primary function of the TPS2413PWRG4?
The TPS2413PWRG4 emulates the function of a low forward voltage diode in conjunction with an external N-channel MOSFET, allowing for N+1 and ORing power rail control.
- What are the key differences between the TPS2412 and TPS2413?
The TPS2412 uses a linear turn-on control, while the TPS2413 uses an on/off gate control method.
- What are the operating temperature and voltage ranges for the TPS2413PWRG4?
The operating temperature range is -40°C to 85°C, and the VDD range is ≥3 V.
- What types of packages are available for the TPS2413PWRG4?
The device is available in 8-pin TSSOP and SOIC packages.
- What are some common applications for the TPS2413PWRG4?
Common applications include rack servers, telecom systems, battery backup units, and redundant power supply systems.
- How does the TPS2413PWRG4 reduce power loss compared to traditional diodes?
The device reduces power loss by using an external N-channel MOSFET, which has a lower forward voltage drop compared to traditional Schottky diodes.
- What features does the TPS2413PWRG4 have for monitoring and control?
The device includes MOSFET fault monitoring, status pin, and enable control for the gate of the external MOSFET.
- How is the turnoff threshold programmed in the TPS2413PWRG4?
The turnoff threshold is programmed by connecting a resistor to ground on the RSET pin.
- What is the significance of the fast comparator filtering in the TPS2413PWRG4?
The fast comparator filtering ensures stable operation by quickly responding to changes in the input voltage.
- Can the TPS2413PWRG4 be used in hotplug scenarios?
Yes, the device is designed to handle hotplug scenarios by preventing reverse current during faults.
