Overview
The TPS2550DBVRG4 is a power-distribution switch from Texas Instruments, designed for applications where heavy capacitive loads and short-circuits are likely to be encountered. This device features an adjustable current-limiting function, allowing users to set the current-limit threshold between 100 mA and 1.1 A using an external resistor. It incorporates a 94-mΩ high-side N-channel MOSFET and provides several protective features, including overcurrent, overtemperature, and reverse-voltage protection. The TPS2550DBVRG4 is suitable for a variety of applications, including USB ports, cell phones, laptops, and heavy capacitive loads.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Adjustable Current-Limit | 100 mA – 1100 mA | A |
| High-Side MOSFET Resistance (rDS(on)) | 94 mΩ (typical at TJ = 25°C) | mΩ |
| Operating Voltage Range | 2.5 V to 6.5 V | V |
| Maximum Junction Temperature | –40°C to 125°C | °C |
| Maximum Continuous Output Current | 1.1 A | A |
| ESD Protection | ±2000 V (HBM), ±500 V (CDM) | V |
| Package Type | DBV (WSON-6) | - |
| Body Size | 2.00 mm × 2.00 mm | mm |
Key Features
- Adjustable current-limit between 100 mA and 1.1 A via an external resistor
- Fast overcurrent response time of 2 μs typical
- Reverse input-output voltage protection
- Built-in soft-start functionality
- 15 kV ESD protection (with external capacitance)
- UL listed – file No. E169910
- Deglitched fault report to prevent false reporting
- Low standby supply current of 1 μA maximum
- Operating range: –40°C to 125°C junction temperature
Applications
- USB Ports/Hubs
- Cell phones
- Laptops
- Heavy Capacitive Loads
- Reverse-Voltage Protection
Q & A
- What is the adjustable current-limit range of the TPS2550DBVRG4?
The adjustable current-limit range is between 100 mA and 1.1 A.
- What is the typical overcurrent response time of the TPS2550DBVRG4?
The typical overcurrent response time is 2 μs.
- Does the TPS2550DBVRG4 have reverse input-output voltage protection?
- What is the maximum junction temperature for the TPS2550DBVRG4?
The maximum junction temperature is 125°C.
- What is the maximum continuous output current of the TPS2550DBVRG4?
The maximum continuous output current is 1.1 A.
- Does the TPS2550DBVRG4 have built-in soft-start functionality?
- What is the ESD protection rating of the TPS2550DBVRG4?
The ESD protection rating is ±2000 V (HBM) and ±500 V (CDM).
- What package type is the TPS2550DBVRG4 available in?
The TPS2550DBVRG4 is available in the DBV (WSON-6) package.
- What are some common applications for the TPS2550DBVRG4?
- Does the TPS2550DBVRG4 have a deglitched fault report feature?
