Overview
The TPS26633PWPR, produced by Texas Instruments, is a highly integrated and robust electronic fuse (eFuse) designed for industrial applications. This device operates within a voltage range of 4.5V to 60V, with an absolute maximum voltage of 67V. It features an integrated 60V, 31mΩ RON hot-swap FET, making it suitable for high-current and high-voltage systems. The TPS26633PWPR includes a B-FET driver to control an external N-channel FET, providing protection against input reverse polarity faults and reverse current blocking. This eFuse is engineered to simplify system designs by incorporating various protection features, including adjustable current limits, overvoltage protection, undervoltage lockout, and surge protection, ensuring compliance with industrial standards such as IEC61010-1 and UL1310.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Operating Voltage | 4.5 | - | 60 | V |
| Absolute Maximum Voltage | - | - | 67 | V |
| Integrated FET RON | - | 31 | - | mΩ |
| Adjustable Current Limit | 0.6 | - | 6 | A |
| Overvoltage Clamp (TPS26633) | - | - | 35 | V |
| Junction Temperature | -40 | - | 125 | °C |
| Junction-to-Ambient Thermal Resistance (RGE Package) | - | - | 31.4 | °C/W |
| Current Monitor Output Gain | 25.66 | 27.9 | 30.14 | µA/A |
Key Features
- Integrated 60V, 31mΩ RON hot-swap FET
- Reverse polarity protection and reverse current blocking support with an external N-channel FET
- Adjustable current limit (0.6A to 6A, ±7%)
- Electrical fast transients (IEC61000-4-4) immunity and load protection during surge (IEC 61000-4-5) with Class-A system performance
- Fast reverse current blocking (0.17µs)
- Adjustable output power limiting (±6%)
- Adjustable UVLO, OVP cutoff, and output slew rate control for inrush current limiting
- Charges large and unknown capacitive loads through thermal regulation during device power up
- Variants with 35V and 39V maximum overvoltage clamp
- Power Good output (PGOOD)
- Selectable overcurrent fault response options between auto-retry and latch-off (MODE)
- Variants with 2 times pulse overcurrent support
- Analog current monitor (IMON) output (±6%)
- UL 2367 recognized – File No. E169910 – RILIM ≥ 3kΩ
- IEC 62368-1 certified
Applications
- Factory automation and control – PLC, DCS, HMI, I/O modules, sensor hubs
- Motor drives – CNC, encoder supply
- Electronic circuit breakers
Q & A
- What is the operating voltage range of the TPS26633PWPR?
The operating voltage range is from 4.5V to 60V, with an absolute maximum voltage of 67V.
- What is the integrated FET RON of the TPS26633PWPR?
The integrated FET RON is 31mΩ.
- Does the TPS26633PWPR support adjustable current limits?
- What kind of surge protection does the TPS26633PWPR offer?
The device offers electrical fast transients (IEC61000-4-4) immunity and load protection during surge (IEC 61000-4-5) with Class-A system performance.
- How does the TPS26633PWPR handle reverse polarity and reverse current?
The device supports reverse polarity protection and reverse current blocking with an external N-channel FET.
- Can the output power limiting be adjusted on the TPS26633PWPR?
- What is the purpose of the Power Good output (PGOOD) on the TPS26633PWPR?
The Power Good output (PGOOD) can be used for enable and disable control of the downstream DC-DC converters and to indicate the system status.
- Does the TPS26633PWPR support overcurrent fault response options?
- Is the TPS26633PWPR certified to any specific standards?
- What is the thermal junction-to-ambient resistance of the TPS26633PWPR in the RGE package?
The thermal junction-to-ambient resistance is 31.4°C/W.
