Overview
The TPS2051BDRG4, produced by Texas Instruments, is a current-limited, power-distribution switch designed for applications requiring reliable power management. This device is part of the TPS20xxB family and is particularly suited for scenarios involving heavy capacitive loads and potential short circuits. It features a high-side N-channel MOSFET switch, providing efficient power distribution with built-in protection mechanisms.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Input Voltage (VI(IN)) | -0.3 | - | 6 | V |
| Output Voltage (VO(OUT)) | -0.3 | - | 6 | V |
| Continuous Output Current (IO(OUT)) | - | 500 | - | mA |
| On Resistance (RDS(ON)) | - | 70 | - | mΩ |
| Short-Circuit Output Current (IOS) | 0.7 | 0.9 | 1.1 | A |
| Operating Temperature Range | -40 | - | 85 | °C |
| Turn-On Time (ton) | - | 3 | - | ms |
| Turn-Off Time (toff) | - | 10 | - | ms |
| Standby Supply Current | - | 1 | - | μA |
Key Features
- 70-mΩ High-Side MOSFET Switch: Provides low on-resistance for efficient power distribution.
- 500-mA Continuous Current: Supports a wide range of applications requiring moderate current levels.
- Thermal and Short-Circuit Protection: Ensures device reliability by preventing overheating and managing short-circuit conditions.
- Accurate Current Limit: Limits output current to prevent damage from overcurrent conditions.
- Undervoltage Lockout: Prevents the device from operating below a specified voltage threshold.
- Deglitched Fault Report (OC): Provides a reliable fault signal without glitches during power-up.
- Low Standby Supply Current: Minimizes power consumption when the device is in standby mode.
- UL Recognized: Meets safety standards for use in various applications.
Applications
- Heavy Capacitive Loads: Ideal for powering devices with high capacitive loads, such as USB peripherals and other power-hungry devices.
- Short-Circuit Protections: Suitable for applications where short circuits are likely to occur, providing robust protection mechanisms.
- General Power Distribution: Can be used in various power distribution scenarios requiring reliable and protected power switching.
Q & A
- What is the maximum continuous output current of the TPS2051BDRG4?
The maximum continuous output current is 500 mA.
- What is the on-resistance of the MOSFET switch in the TPS2051BDRG4?
The on-resistance is typically 70 mΩ.
- Does the TPS2051BDRG4 have thermal protection?
- What is the operating temperature range of the TPS2051BDRG4?
The operating temperature range is from -40°C to 85°C.
- How does the TPS2051BDRG4 handle short-circuit conditions?
The device has built-in short-circuit protection and limits the output current to prevent damage.
- What is the typical turn-on time of the TPS2051BDRG4?
The typical turn-on time is 3 ms.
- Does the TPS2051BDRG4 have undervoltage lockout?
- What is the standby supply current of the TPS2051BDRG4?
The standby supply current is typically 1 μA.
- Is the TPS2051BDRG4 UL recognized?
- What types of applications is the TPS2051BDRG4 suitable for?
