Overview
The TPS26621DRCT from Texas Instruments is a high-voltage electronic fuse (eFuse) designed to provide comprehensive protection and control for various industrial and power management applications. This device is part of the TPS2662x family, which offers a wide range of features to ensure robust and reliable operation. The TPS26621DRCT operates within a voltage range of 4.5 V to 60 V, with an absolute maximum voltage of 62 V, making it suitable for controlling many popular DC bus voltages. It integrates reverse input polarity protection up to –60 V and features adjustable current limits, overvoltage protection, and inrush current limiting, among other functionalities.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage | 4.5 V to 60 V | V |
| Absolute Maximum Voltage | 62 V | V |
| Reverse Input Polarity Protection | –60 V | V |
| Reverse Output Polarity Protection (TPS26624 and TPS26625 only) | – (60 – VIN) | V |
| Total RON of Back-to-Back MOSFETs | 478 mΩ | mΩ |
| Adjustable Current Limit | 25 mA to 880 mA (±5% accuracy at 880 mA) | A |
| Quiescent Current (Operating) | 340 µA | µA |
| Quiescent Current (Shutdown) | 12 µA | µA |
| Package Type | 10-pin VSON (3 mm × 3 mm) | |
| Temperature Range | –40°C to +125°C | °C |
| Certifications | UL 2367 recognized, IEC 62368-1 certified |
Key Features
- Integrated reverse input and output polarity protection to prevent damage from incorrect voltage connections.
- Adjustable current limit from 25 mA to 880 mA with ±5% accuracy at 880 mA.
- Load protection during surge conditions (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 undervoltage lockout (UVLO), overvoltage protection (OVP), and output slew rate control for inrush current limiting.
- Low quiescent current in operating and shutdown modes.
- Small footprint in a 10-pin VSON package (3 mm × 3 mm).
- Auto-retry functionality for overtemperature and overcurrent fault events (specific to TPS26621, TPS26623, and TPS26625).
Applications
- PLC I/O modules
- AC and servo drives
- Sensor and control systems
- Thermostats
- Power over Ethernet (PoE) high-side protection
Q & A
- What is the operating voltage range of the TPS26621DRCT?
The TPS26621DRCT operates within a voltage range of 4.5 V to 60 V. - What kind of polarity protection does the TPS26621DRCT offer?
The device offers integrated reverse input polarity protection up to –60 V. For specific models like TPS26624 and TPS26625, it also provides reverse output polarity protection. - How is the current limit adjusted on the TPS26621DRCT?
The current limit is adjustable from 25 mA to 880 mA using a resistor connected to the ILIM pin. - What certifications does the TPS26621DRCT hold?
The device is UL 2367 recognized and IEC 62368-1 certified. - What is the package type and size of the TPS26621DRCT?
The device is packaged in a 10-pin VSON package with a footprint of 3 mm × 3 mm. - How does the TPS26621DRCT handle overtemperature and overcurrent faults?
The TPS26621DRCT features auto-retry functionality for overtemperature and overcurrent fault events. - What is the quiescent current of the TPS26621DRCT in operating and shutdown modes?
The quiescent current is 340 µA in operating mode and 12 µA in shutdown mode. - Does the TPS26621DRCT provide surge protection?
Yes, the device provides load protection during surge conditions (IEC 61000-4-5) with minimal external components. - How fast is the reverse current blocking response of the TPS26621DRCT?
The reverse current blocking response is 0.3 µs. - What is the temperature range for the TPS26621DRCT?
The device is specified over a temperature range of –40°C to +125°C.
