Overview
The TPS2051CDBVT 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 incorporates a 70mΩ N-channel MOSFET power switch, providing efficient power distribution in a compact SOT-23 package. The TPS2051CDBVT is part of the TPS20xxB family, which is known for its robust protection features and low power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | SOT-23 | |
| Pins | 5 | |
| Operating Temperature Range | -40 to 85 | °C |
| Continuous Output Current | 0.5 | A |
| Input Voltage Range | 2.7 to 5.5 | V |
| On-State Resistance (rDS(on)) | 70 (typical at 5V) | mΩ |
| Rise Time | 0.6 (typical at 5V) | ms |
| Fall Time | 4.4 (typical at 5V) | ms |
| Current Limit Topology | Constant-Current | |
| Enable Input | Active High | |
| Standby Supply Current | 1 μA (typical) | |
| UL Recognition | File Number E169910 |
Key Features
- 70mΩ High-Side MOSFET for efficient power switching
- 500mA Continuous Current capability
- Thermal and Short-Circuit Protection to ensure device reliability
- Accurate Current Limit (0.75A Minimum, 1.25A Maximum)
- Operating Range: 2.7V to 5.5V, making it versatile for various applications
- Typical Rise Time of 0.6ms and Fall Time of 4.4ms at 5V input
- Undervoltage Lockout and Deglitched Fault Report (OC)
- No OC Glitch During Power Up for smooth operation
- Maximum Standby Supply Current of 1μA for low power consumption
- Ambient Temperature Range: –40°C to 85°C, suitable for a wide range of environments
- UL Recognized, File Number E169910, ensuring safety and compliance
Applications
The TPS2051CDBVT is designed for applications that involve heavy capacitive loads and short circuits. Some common use cases include:
- Power distribution in portable electronics and handheld devices
- Protection against short circuits and overcurrent conditions in industrial control systems
- Power management in automotive and aerospace systems where reliability is critical
- USB and other interface power switching where high-side switching is required
- General-purpose power distribution in various electronic systems
Q & A
- What is the maximum continuous output current of the TPS2051CDBVT?
The maximum continuous output current is 500mA.
- What is the operating temperature range of the TPS2051CDBVT?
The operating temperature range is –40°C to 85°C.
- What is the typical on-state resistance (rDS(on)) of the TPS2051CDBVT?
The typical on-state resistance is 70mΩ at 5V input.
- Does the TPS2051CDBVT have built-in thermal protection?
Yes, it has thermal and short-circuit protection.
- What is the input voltage range for the TPS2051CDBVT?
The input voltage range is 2.7V to 5.5V.
- Is the TPS2051CDBVT UL recognized?
Yes, it is UL recognized with File Number E169910.
- What is the typical rise and fall time of the TPS2051CDBVT?
The typical rise time is 0.6ms and the typical fall time is 4.4ms at 5V input.
- Does the TPS2051CDBVT have an undervoltage lockout feature?
Yes, it has an undervoltage lockout feature.
- What is the standby supply current of the TPS2051CDBVT?
The maximum standby supply current is 1μA.
- Is the TPS2051CDBVT RoHS compliant?
Yes, it is RoHS compliant.
