Overview
The TPS2551DRVT is an adjustable, active-high, constant-current, current-limited power-distribution switch produced by Texas Instruments. This device is designed to handle applications where heavy capacitive loads and short circuits are likely to occur. It incorporates a 100-mΩ, N-channel MOSFET in a single package, making it suitable for a variety of power management tasks. The current-limit threshold is user adjustable between 100 mA and 1.1 A via an external resistor, and the power-switch rise and fall times are controlled to minimize current surges during switching.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 6-WDFN Exposed Pad | |
| Number of Pins | 6 | |
| Maximum Output Current | 1.1 | A |
| Supply Voltage Range | 2.5 to 6.5 | V |
| High-Side MOSFET Resistance | 94 mΩ (DBV package) | |
| Junction Temperature Range | -40°C to 125°C | |
| Standby Supply Current | 1 μA (max) | |
| ESD Protection | 15 kV (with external capacitance) |
Key Features
- Adjustable current-limit: 100 mA to 1.1 A via an external resistor
- Fast overcurrent response: 2 μS typical
- Reverse input-output voltage protection
- Deglitched fault report
- Built-in soft-start
- UL listed – file No. E169910
- 15 kV ESD protection (with external capacitance)
Applications
- USB Ports/Hubs
- Cell phones
- Laptops
- Heavy Capacitive Loads
- Reverse-Voltage Protection
Q & A
- What is the TPS2551DRVT used for?
The TPS2551DRVT is used for power distribution in applications where heavy capacitive loads and short circuits are likely to occur. - What is the adjustable current-limit range of the TPS2551DRVT?
The current-limit threshold is adjustable between 100 mA and 1.1 A via an external resistor. - What is the maximum output current of the TPS2551DRVT?
The maximum output current is 1.1 A. - What is the operating voltage range of the TPS2551DRVT?
The operating voltage range is from 2.5 V to 6.5 V. - Does the TPS2551DRVT have built-in ESD protection?
Yes, it has 15 kV ESD protection with external capacitance. - What is the junction temperature range of the TPS2551DRVT?
The junction temperature range is from -40°C to 125°C. - Does the TPS2551DRVT have reverse-voltage protection?
Yes, it has reverse input-output voltage protection. - What is the standby supply current of the TPS2551DRVT?
The maximum standby supply current is 1 μA. - Is the TPS2551DRVT UL listed?
Yes, it is UL listed – file No. E169910. - What types of applications benefit from the TPS2551DRVT?
Applications include USB ports/hubs, cell phones, laptops, and heavy capacitive loads.
