Overview
The TPS2551DRVEVM-271 is an evaluation module (EVM) designed by Texas Instruments to demonstrate the functionality of the TPS2551 power-distribution switch. This module is part of the TPS255x family, which includes adjustable current-limit features, making it suitable for a variety of USB and power distribution applications. The EVM operates over an input voltage range of 2.5 V to 6.5 V and provides two current-limit settings that can be adjusted using onboard jumpers and resistors.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage, Vin | J1 | 2.5 | - | 6.5 | Volt |
| Short-Circuit Output Current-Limit, ILIMIT | J2 shorting-jumper absent, J3 shorted, TPS255x enabled | 0.60 | 0.65 | 0.72 | Ampere |
| Short-Circuit Output Current-Limit, ILIMIT | J2 shorting-jumper present, J3 shorted, TPS255x enabled | 1.20 | 1.28 | 1.38 | Ampere |
| Operating Junction Temperature | - | -40°C | - | 125°C | °C |
| Package | - | - | - | SON-6 | - |
| Quiescent Current | - | - | 80 μA | - | A |
| Thermal Shutdown Threshold | - | - | 140°C | - | °C |
Key Features
- Adjustable current limit: 75 mA to 1.5 A
- Input voltage range: 2.5 V to 6.5 V
- Low quiescent current: 80 μA typical
- Thermal shutdown threshold: 140°C
- Short-circuit protection and overcurrent protection
- Reverse current blocking
- Low on-resistance for efficient power distribution
- Fast response time to overcurrent
- Compact design with SON-6 package
- Robust performance across a wide range of temperatures
- ESD protection: 8-kV contact discharge and 15-kV air discharge per IEC 61000-4-2
Applications
- USB-powered devices
- Power distribution in portable electronics
- USB ports for computers and laptops
- Power management in embedded systems
Q & A
- What is the input voltage range of the TPS2551DRVEVM-271?
The input voltage range is 2.5 V to 6.5 V.
- How can the current limit be adjusted on the TPS2551DRVEVM-271?
The current limit can be adjusted by populating header J2 with a shorting jumper and modifying resistor R3 according to the specified equation.
- What are the available current-limit settings on the EVM?
The EVM provides two current-limit settings: 0.60 A to 0.72 A and 1.20 A to 1.38 A, depending on the jumper configuration.
- What is the thermal shutdown threshold of the TPS2551?
The thermal shutdown threshold is 140°C.
- Does the TPS2551DRVEVM-271 have ESD protection?
Yes, it has ESD protection with 8-kV contact discharge and 15-kV air discharge per IEC 61000-4-2.
- What package type is used for the TPS2551 on this EVM?
The TPS2551 on this EVM is in a SON-6 package.
- What is the quiescent current of the TPS2551?
The quiescent current is typically 80 μA.
- What are some common applications for the TPS2551DRVEVM-271?
Common applications include USB-powered devices, power distribution in portable electronics, and power management in embedded systems.
- How does the TPS2551DRVEVM-271 protect against overcurrent and short circuits?
The TPS2551DRVEVM-271 includes built-in overcurrent protection and short-circuit protection features).
- Is the TPS2551DRVEVM-271 RoHS compliant?
Yes, the TPS2551DRVEVM-271 is RoHS compliant).
