Overview
The TPS2413D, produced by Texas Instruments, is a power rail controller designed to emulate the function of a low forward voltage diode in conjunction with an external N-channel MOSFET. This component is particularly useful in N+1 redundant power supply configurations and redundant input power buses. It allows for the combination of multiple power supplies to a common bus, preventing reverse current during faults and hotplug events. The TPS2413D features an on/off control method, making it suitable for applications requiring fast and efficient power management.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VDD UVLO (VDD rising) | 2.25 | 2.5 | V | |
| VDD UVLO Hysteresis | 0.25 | V | ||
| Gate Current (Gate in active region) | 0.66 | 1 | mA | |
| Gate Current (Gate saturated high) | 0.1 | mA | ||
| VDD Current (Worst case, gate in active region) | 4.25 | 6 | mA | |
| Turnon Voltage (TPS2413) | 7 | 10 | 13 | mV |
| Fast Turnoff Threshold Voltage | 1 | 3 | 5 | mV |
| Thermal Shutdown Temperature | 135 | °C | ||
| Operating Temperature Range | -40 | 85 | °C | |
| Package Types | TSSOP (8-pin), SOIC (8-pin) |
Key Features
- On/off control method for the MOSFET, suitable for low-voltage buses without re-regulation.
- Programmable fast turnoff threshold using the RSET pin.
- Accurate voltage sensing and adjustable turnoff threshold.
- Enable control and MOSFET fault monitoring.
- Status pin for monitoring the state of the MOSFET.
- Linear gate control is not available in TPS2413; instead, it uses a comparator with hysteresis.
- Fast comparator filtering and voltage monitoring capabilities.
- Thermal shutdown protection.
Applications
- Rack servers (rackmount and blade servers).
- Merchant network and server power supplies.
- Battery backup units.
- Telecom systems.
- N+1 redundant power supply configurations.
- Redundant input power buses.
Q & A
- What is the primary function of the TPS2413D? The TPS2413D emulates the function of a low forward voltage diode in conjunction with an external N-channel MOSFET, allowing for the combination of multiple power supplies to a common bus.
- What are the key differences between TPS2412 and TPS2413? The TPS2412 provides linear turn-on control, while the TPS2413 uses an on/off control method with a comparator and hysteresis.
- What is the operating temperature range of the TPS2413D? The operating temperature range is from -40°C to 85°C.
- How is the fast turnoff threshold programmed in the TPS2413D? The fast turnoff threshold is programmed using a resistor connected from the RSET pin to ground.
- What types of packages are available for the TPS2413D? The TPS2413D is available in 8-pin TSSOP and SOIC packages.
- What are some common applications of the TPS2413D? Common applications include rack servers, merchant network and server power supplies, battery backup units, and telecom systems.
- Does the TPS2413D have thermal shutdown protection? Yes, the TPS2413D has thermal shutdown protection with a temperature threshold of 135°C.
- How does the TPS2413D handle reverse current during faults? The TPS2413D prevents reverse current during faults by emulating a diode OR function with the external MOSFET.
- Can the TPS2413D be used in redundant power bus configurations? Yes, the TPS2413D can be used to OR redundant input power buses to a common point, enhancing system reliability.
- What is the significance of the RSET pin in the TPS2413D? The RSET pin is used to program the fast turnoff threshold voltage, allowing for customizable operation based on the application requirements.
