Overview
The TPS2421-2DDA device from Texas Instruments is a highly integrated hot swap power management controller designed to provide superior protection in applications where the load is powered by busses up to 20 V. This device is particularly suited for standard bus voltages as low as 3.3 V due to its maximum-UV turnon threshold of 2.9 V. It is effective in systems where voltage bus protection is crucial to prevent shorts from interrupting or damaging the unit. The TPS2421-2DDA is available in an 8-pin PowerPad™ SO-8 package, making it easy to use in various applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 8-pin PowerPad™ SO-8 |
| Operating Voltage Range | 3 V to 20 V |
| Maximum UV Turnon Threshold | 2.9 V |
| Operating Temperature Range (°C) | -40 to 125 |
| Junction Temperature Range (°C) | -40 to 125 |
| UL Recognition | UL2367 Recognized - File Number E169910 |
Key Features
- Integrated Pass MOSFET
- Up to 20-V Bus Operation
- Programmable Fault Current
- Current Limit Proportionally Larger than Fault Current
- Programmable Fault Timer
- Internal MOSFET Power Limiting
- Latch-Off on Fault (TPS2421-1) and Retry (TPS2421-2) Versions
- SO-8 PowerPad™ Package
Applications
The TPS2421-2DDA is ideal for systems where loads experience brief high current demands but require protection levels aligned with their average current draw. Examples include disk drive startups and other applications where voltage bus protection is critical to prevent shorts and damage. It is particularly useful in data centers, servers, and other high-reliability systems where hot swap capabilities are essential.
Q & A
- What is the operating voltage range of the TPS2421-2DDA?
The operating voltage range of the TPS2421-2DDA is from 3 V to 20 V.
- What type of package does the TPS2421-2DDA come in?
The TPS2421-2DDA comes in an 8-pin PowerPad™ SO-8 package.
- What is the maximum UV turnon threshold for the TPS2421-2DDA?
The maximum UV turnon threshold for the TPS2421-2DDA is 2.9 V.
- Does the TPS2421-2DDA have programmable protection features?
Yes, the TPS2421-2DDA has multiple programmable protection features including programmable fault current, current limit, and fault timer.
- What is the operating temperature range of the TPS2421-2DDA?
The operating temperature range of the TPS2421-2DDA is from -40°C to 125°C.
- Is the TPS2421-2DDA UL recognized?
Yes, the TPS2421-2DDA is UL2367 recognized with File Number E169910.
- What are the different versions of the TPS2421 device?
The TPS2421 device is available in latch-off on fault (TPS2421-1) and retry on fault (TPS2421-2) versions.
- What kind of MOSFET protection does the TPS2421-2DDA offer?
The TPS2421-2DDA offers hotswap MOSFET protection with power limit circuitry to protect against SOA related failures.
- What are typical applications for the TPS2421-2DDA?
Typical applications include disk drive startups and other systems where loads experience brief high current demands and require robust voltage bus protection.
- Why is the TPS2421-2DDA useful in data centers and servers?
The TPS2421-2DDA is useful in data centers and servers due to its hot swap capabilities and robust protection features, ensuring high reliability and preventing damage from shorts.
