Overview
The TPS2421-2DDAR is a highly integrated hot swap controller designed by Texas Instruments. This device is optimized for power management and protection in applications where the load is powered by busses up to 20 V. It is particularly useful in systems that require protection against shorts and power surges, ensuring continuous operation without interruption. The TPS2421-2DDAR is available in an 8-pin HSOIC (DDA) package with a PowerPad™, making it suitable for a variety of applications, including those with space constraints.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | TPS2421-2DDAR |
| Package/Case | 8-Pin HSOIC (DDA) |
| Number of Channels | 1 |
| Max Supply Voltage | 20 V |
| Min Supply Voltage | 3 V |
| Max Operating Temperature | 125°C |
| Min Operating Temperature | -40°C |
| Output Current | 6 A |
| On-State Resistance | 33 mΩ |
| Turn-On Delay Time | 350 µs |
| Turn-Off Delay Time | 30 µs |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
Key Features
- Integrated Pass MOSFET for efficient power management.
- Up to 20-V bus operation, suitable for various voltage levels including 3.3 V due to the maximum UV turn-on threshold of 2.9 V.
- Programmable fault current and fault timer for customizable protection.
- Current limit proportionally larger than fault current to handle brief high current pulses.
- Internal MOSFET power limiting to protect against SOA related failures.
- Latch-off on fault (TPS2421-1) and retry on fault (TPS2421-2) versions available.
- SO-8 PowerPad™ package for enhanced thermal performance.
- UL2367 recognized for safety compliance.
- Auto retry, thermal limit, and UVLO features for robust protection.
- Configurable slew rate control and adjustable current limit).
Applications
The TPS2421-2DDAR is versatile and can be used in a variety of applications, including:
- General purpose power management in industrial and consumer electronics.
- Hot swapping components in server racks and data centers).
- Protecting sensitive electronics from power surges and shorts).
- Battery-powered systems requiring load-switching and reverse current protection).
- Automotive and telecommunications applications where robust power management is crucial).
Q & A
- What is the TPS2421-2DDAR used for?
The TPS2421-2DDAR is a hot swap controller used for power management and protection in applications where the load is powered by busses up to 20 V.
- What is the maximum supply voltage for the TPS2421-2DDAR?
The maximum supply voltage for the TPS2421-2DDAR is 20 V.
- What is the operating temperature range of the TPS2421-2DDAR?
The operating temperature range is from -40°C to 125°C).
- What type of package does the TPS2421-2DDAR come in?
The TPS2421-2DDAR comes in an 8-pin HSOIC (DDA) package with a PowerPad™).
- Does the TPS2421-2DDAR have programmable protection features?
Yes, it has programmable fault current, fault timer, and current limit features).
- Is the TPS2421-2DDAR RoHS compliant?
Yes, the TPS2421-2DDAR is RoHS compliant).
- What are some common applications of the TPS2421-2DDAR?
Common applications include general purpose power management, hot swapping in server racks, protecting sensitive electronics, and use in battery-powered systems).
- Does the TPS2421-2DDAR have internal MOSFET power limiting?
Yes, it has internal MOSFET power limiting to protect against SOA related failures).
- What is the maximum output current of the TPS2421-2DDAR?
The maximum output current is 6 A).
- Is the TPS2421-2DDAR available in latch-off and retry versions?
Yes, it is available in both latch-off (TPS2421-1) and retry (TPS2421-2) versions).
