Overview
The TPS2051BDGN from Texas Instruments is a high-performance power-distribution switch designed for a wide range of applications. This component is part of the TPS2051 series and is packaged in a DGN (MSOP-8) package. It features a high-side MOSFET switch with a low on-state resistance, making it suitable for power management in various electronic systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage (VI(IN)) | 2.7 | 5.5 | V | |
| Continuous Output Current (IO(OUT)) | 0 | 500 | mA | |
| On-State Resistance (rDS(on)) at 5V | 80 | 95 | 120 | mΩ |
| On-State Resistance (rDS(on)) at 3.3V | 85 | 105 | 135 | mΩ |
| Turn-On Time | 20 | ms | ||
| Turn-Off Time | 40 | ms | ||
| Short-Circuit Output Current | 0.7 | 0.9 | 1.1 | A |
| Operating Junction Temperature | -40 | 125 | °C |
Key Features
- High-Side MOSFET Switch: The TPS2051BDGN features a high-side MOSFET switch with a low on-state resistance of up to 135 mΩ at 5V and 150 mΩ at 3.3V, ensuring minimal power loss.
- Continuous Current Capability: It can handle a continuous output current of up to 500 mA.
- Thermal and Short-Circuit Protection: The device includes thermal and short-circuit protection to prevent damage during heavy-overload or short-circuit faults.
- Accurate Current Limiting: It has an accurate current limit feature to prevent overcurrent conditions.
- Low Supply Current: The device has a low supply current, typically 0.015 μA at no load, making it power-efficient.
- Active-High Enable Input: The enable input is active-high, allowing for easy integration into various control circuits.
Applications
The TPS2051BDGN is suitable for a variety of applications, including:
- USB Power Switches: Ideal for managing power in USB ports and other high-current applications.
- Power Distribution in Consumer Electronics: Used in devices such as smartphones, tablets, and other portable electronics.
- Industrial Control Systems: Can be used in industrial automation and control systems where reliable power distribution is crucial.
- Medical Devices: Suitable for medical equipment that requires precise and reliable power management.
Q & A
- What is the input voltage range for the TPS2051BDGN?
The input voltage range is from 2.7V to 5.5V.
- What is the maximum continuous output current of the TPS2051BDGN?
The maximum continuous output current is 500 mA.
- What type of protection does the TPS2051BDGN offer?
The device offers thermal and short-circuit protection.
- What is the typical on-state resistance of the TPS2051BDGN at 5V?
The typical on-state resistance at 5V is 95 mΩ.
- How does the enable input work on the TPS2051BDGN?
The enable input is active-high.
- What is the recommended operating junction temperature range for the TPS2051BDGN?
The recommended operating junction temperature range is from -40°C to 125°C.
- What is the purpose of the overcurrent protection in the TPS2051BDGN?
The overcurrent protection prevents damage to the device during overcurrent conditions by limiting the current and shutting off the switch if necessary.
- How does the thermal protection work in the TPS2051BDGN?
The thermal protection senses the junction temperature and shuts off the switch if it exceeds a certain threshold to prevent overheating.
- What is the typical supply current of the TPS2051BDGN at no load?
The typical supply current at no load is 0.015 μA.
- What type of package is the TPS2051BDGN available in?
The TPS2051BDGN is available in a DGN (MSOP-8) package.
