Overview
The TPS2412DR, 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 device is part of the TPS2412/13 series, which offers lower pin count and reduced feature versions compared to the TPS2410/11 series. It is particularly useful in high availability power supply systems, ensuring reliable and efficient power distribution.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Voltage - Supply | 3 V ~ 16.5 V | Input supply voltage range for the device. |
| Operating Temperature | -40°C ~ 85°C | Temperature range within which the device operates. |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | Physical package type and dimensions. |
| Mounting Type | Surface Mount | Type of mounting for the device. |
| Current - Supply | 4.25mA | Maximum current drawn by the device from the supply voltage. |
| Delay Time - OFF | 130ns | Turn-off delay time for the MOSFET. |
Key Features
- Linear and ON/OFF Gate Control: The device supports both linear and ON/OFF control of the external MOSFET.
- Adjustable Turnoff Threshold: The turnoff threshold can be programmed using an external resistor connected to the RSET pin.
- Fast Comparator Filtering: Internal comparator circuits with fast filtering capabilities to ensure accurate voltage sensing.
- Voltage Monitoring and Enable Control: The device includes voltage monitoring and enable control features to manage the power rail effectively.
- MOSFET Fault Monitoring and Status Pin: The device monitors the MOSFET for faults and provides a status pin for indicating the operational state.
Applications
The TPS2412DR is primarily used in N+1 power supplies and high availability systems. These applications require reliable and efficient power distribution, making the TPS2412DR an ideal choice for ensuring continuous operation and minimizing downtime.
Q & A
- What is the primary function of the TPS2412DR?
The TPS2412DR emulates the function of a low forward voltage diode in conjunction with an external N-channel MOSFET, making it suitable for N+1 and ORing power rail control applications).
- What is the supply voltage range for the TPS2412DR?
The supply voltage range for the TPS2412DR is 3 V to 16.5 V).
- What is the operating temperature range for the TPS2412DR?
The operating temperature range for the TPS2412DR is -40°C to 85°C).
- What type of package does the TPS2412DR come in?
The TPS2412DR comes in an 8-SOIC package with dimensions of 0.154" x 3.90mm width).
- How does the TPS2412DR control the external MOSFET?
The TPS2412DR controls the external MOSFET through linear and ON/OFF gate control, and it also allows for adjustable turnoff threshold programming).
- What is the maximum supply current for the TPS2412DR?
The maximum supply current for the TPS2412DR is 4.25mA).
- What is the turn-off delay time for the MOSFET controlled by the TPS2412DR?
The turn-off delay time for the MOSFET is 130ns).
- Does the TPS2412DR have fault monitoring capabilities?
Yes, the TPS2412DR includes MOSFET fault monitoring and provides a status pin to indicate the operational state).
- In what types of systems is the TPS2412DR typically used?
The TPS2412DR is typically used in N+1 power supplies and high availability systems).
- How can the turnoff threshold be adjusted on the TPS2412DR?
The turnoff threshold can be adjusted by connecting a resistor to the RSET pin).
