Overview
The TPS2412D, manufactured by Texas Instruments, is an N+1 and ORing power rail controller. This device is designed to work in conjunction with an external N-channel MOSFET to emulate the function of a low forward-voltage diode. It is particularly useful in high-availability power supplies and hot-swap applications. The TPS2412D offers accurate voltage sensing and a programmable turnoff threshold, allowing for customization to suit various implementation and bus characteristics.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Package | 8-SOIC (0.154", 3.90mm Width) | Surface mount package |
| FET Type | N-Channel | Type of MOSFET supported |
| Supply Voltage | 3 V ~ 16.5 V | Range of input supply voltage |
| Supply Current | 4.25 mA | Maximum current drawn from the supply |
| Operating Temperature | -40°C ~ 85°C | Temperature range for operation |
| Delay Time - OFF | 130 ns | Turn-off delay time |
| Mounting Type | Surface Mount | Type of mounting |
Key Features
- Linear and ON/OFF gate control
- Adjustable turnoff threshold
- Fast comparator filtering
- Voltage monitoring and enable control
- MOSFET fault monitoring and status pin
- Internal charge pump for gate drive and comparator bias
- Protection against excess differential voltage with clamp diode and series resistance
Applications
The TPS2412D is primarily used in N+1 power supplies and high-availability systems. It is suitable for hot-swap applications where reliable and efficient power management is crucial.
Q & A
- What is the primary function of the TPS2412D?
The TPS2412D is an N+1 and ORing power rail controller that emulates the function of a low forward-voltage diode using an external N-channel MOSFET.
- What is the supply voltage range for the TPS2412D?
The supply voltage range is from 3 V to 16.5 V.
- What is the maximum supply current of the TPS2412D?
The maximum supply current is 4.25 mA.
- What is the operating temperature range for the TPS2412D?
The operating temperature range is from -40°C to 85°C.
- What type of package does the TPS2412D come in?
The TPS2412D comes in an 8-SOIC package.
- What is the turn-off delay time of the TPS2412D?
The turn-off delay time is 130 ns.
- Does the TPS2412D have MOSFET fault monitoring?
- What is the purpose of the internal charge pump in the TPS2412D?
The internal charge pump provides bias power to the comparators and voltage to drive the GATE of the MOSFET.
- What kind of protection does the TPS2412D have against excess differential voltage?
The TPS2412D has protection against excess differential voltage with a clamp diode and series resistance.
- In what types of applications is the TPS2412D commonly used?
The TPS2412D is commonly used in N+1 power supplies and high-availability systems, including hot-swap applications.
