Overview
The TPS25942ARVCR, produced by Texas Instruments, is a compact and feature-rich power management device designed as an eFuse Power MUX. It operates within a wide voltage range of 2.7 V to 18 V, with a maximum voltage of 20 V, making it suitable for controlling various popular DC bus voltages. The device integrates back-to-back FETs, providing bidirectional current control, which is ideal for power muxing and systems with multiple power sources. It offers a full suite of protection functions, including overvoltage, undervoltage, overcurrent, and thermal protection, ensuring robust and reliable operation in diverse applications.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage Range | 2.7 V to 18 V (Maximum 20 V) |
| RON (Typical) | 42 mΩ |
| Adjustable Current Limit | 0.6 A to 5.3 A (±8%) |
| IMON Current Indicator Output | ±8% |
| Operating IQ (Typical) | 200 µA |
| Disabled IQ (Typical) | 15 µA |
| Overvoltage and Undervoltage Thresholds | ±2% |
| Reverse Current Blocking | Yes |
| Reverse Voltage Shutoff | 1 µs |
| Programmable dV/dt Control | Yes |
| Power Good and Fault Outputs | Yes |
| Junction Temperature Range | –40°C to +125°C |
| UL Recognition | UL 2367 Recognized, File No. 169910 |
| Package | 20-pin WQFN (RVC) |
Key Features
- Integrated back-to-back FETs for bidirectional current control
- Programmable undervoltage lockout function
- Adjustable current limiting (0.6 A to 5.3 A ±8%)
- IMON current indicator output (±8%)
- Reverse current blocking and 1-µs reverse voltage shutoff
- Programmable dV/dt control
- Power good and fault outputs
- Two overcurrent fault response options: thermal shutdown or 4 ms fault timer then shutoff
- UL 2367 recognized and UL60950 safe during single point failure
- Open-short ILIM detection
Applications
The TPS25942ARVCR is commonly used in various power distribution and protection applications, including:
- USB ports
- Portable devices
- Battery chargers
- Industrial electronics
- Systems requiring overcurrent protection, reverse current blocking, and thermal shutdown
Q & A
- What is the operating voltage range of the TPS25942ARVCR?
The operating voltage range is 2.7 V to 18 V, with a maximum voltage of 20 V.
- What is the typical RON of the TPS25942ARVCR?
The typical RON is 42 mΩ.
- What are the adjustable current limit ranges of the TPS25942ARVCR?
The adjustable current limit ranges from 0.6 A to 5.3 A with ±8% accuracy.
- Does the TPS25942ARVCR have reverse current blocking?
Yes, it has reverse current blocking and 1-µs reverse voltage shutoff.
- What are the power good and fault output features of the TPS25942ARVCR?
The device provides power good (PGOOD) and fault (FLT) outputs for system status monitoring.
- What are the overcurrent fault response options for the TPS25942ARVCR?
The options include thermal shutdown or a 4 ms fault timer followed by shutoff.
- Is the TPS25942ARVCR UL recognized?
Yes, it is UL 2367 recognized with File No. 169910.
- What is the junction temperature range of the TPS25942ARVCR?
The junction temperature range is –40°C to +125°C.
- In what package is the TPS25942ARVCR available?
The device is available in a 20-pin WQFN (RVC) package.
- What are some common applications of the TPS25942ARVCR?
Common applications include USB ports, portable devices, battery chargers, and industrial electronics.
