Overview
The TPS26621DRCR, part of the TPS2662x family from Texas Instruments, is a high-voltage electronic fuse (eFuse) designed to provide comprehensive protection and control for various DC bus voltages. This device operates within a wide supply input range of 4.5 V to 60 V and can withstand both positive and negative supply voltages up to ±60 V. It is particularly suited for systems requiring robust protection against surges, overcurrent, and reverse polarity, making it ideal for industrial and high-reliability applications.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | 4.5 V to 60 V, 62 V absolute maximum |
| On-Resistance (RON) | 478 mΩ |
| Current Limit | 25 mA to 880 mA (±5% accuracy at 880 mA) |
| Reverse Input Polarity Protection | Up to –60 V |
| Reverse Output Polarity Protection | Up to –(60 – VIN) (TPS26624 and TPS26625 only) |
| Quiescent Current | 340 µA in operating, 12 µA in shutdown |
| Package | 10-pin VSON (DRC), 3 mm × 3 mm |
| Operating Temperature Range | –40°C to +125°C |
| Certifications | UL 2367 recognized, IEC 62368-1 certified |
Key Features
- Integrated input and output reverse polarity protection up to ±60 V
- Integrated back to back MOSFETs for reverse current blocking
- Adjustable current limit (25 mA to 880 mA) with ±5% accuracy at 880 mA
- Load protection during surge (IEC 61000-4-5) with minimal external components
- Electrical fast transients immunity according to IEC 61000-4-4
- Fast reverse current blocking response (0.3 µs)
- Adjustable UVLO, OVP cut off, and output slew rate control for inrush current limiting
- Low quiescent current and small footprint
- Auto-retry functionality for overtemperature and overcurrent fault events (TPS26621, TPS26623, and TPS26625)
Applications
The TPS26621DRCR is suitable for a variety of high-reliability and industrial applications, including but not limited to:
- Industrial power systems
- Automotive systems requiring high voltage protection
- Medical devices needing robust power protection
- Telecommunication equipment
- Server and data center power supplies
Q & A
- What is the operating voltage range of the TPS26621DRCR?
The operating voltage range is 4.5 V to 60 V, with an absolute maximum of 62 V. - What kind of polarity protection does the TPS26621DRCR offer?
The device offers integrated input and output reverse polarity protection up to ±60 V. - How is the current limit adjustable on the TPS26621DRCR?
The current limit is adjustable from 25 mA to 880 mA with ±5% accuracy at 880 mA. - What certifications does the TPS26621DRCR hold?
The device is UL 2367 recognized and IEC 62368-1 certified. - What is the package type and size of the TPS26621DRCR?
The device is packaged in a 10-pin VSON (DRC) package, measuring 3 mm × 3 mm. - What is the operating temperature range of the TPS26621DRCR?
The operating temperature range is –40°C to +125°C. - Does the TPS26621DRCR have any fault response mechanisms?
Yes, it features auto-retry functionality for overtemperature and overcurrent fault events. - How does the TPS26621DRCR protect against surges?
The device provides load protection during surges (IEC 61000-4-5) with minimal external components. - What is the quiescent current of the TPS26621DRCR in operating and shutdown modes?
The quiescent current is 340 µA in operating mode and 12 µA in shutdown mode. - Is the TPS26621DRCR suitable for systems with output voltage holdup requirements?
Yes, the integrated back to back FETs provide reverse current blocking, making it suitable for such systems.
