Overview
The TPS2065DDBVT, manufactured by Texas Instruments, is a power distribution switch designed for applications requiring heavy capacitive loads and short-circuit protection. This device integrates a 70mΩ N-channel MOSFET power switch, making it suitable for systems that need multiple power switches in a single package. Each switch is controlled by a logic enable input, and the gate drive is provided by an internal charge pump, which minimizes current surges during switching. The TPS2065DDBVT operates with a supply voltage as low as 2.7V and features thermal and short-circuit protection, ensuring safe operation under fault conditions. It is particularly useful in USB power switch applications and other power distribution systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Current | 1 | A | Continuous |
| Current Limit | 1.5 | A | Typical |
| On-Resistance | 70 | mΩ | Maximum |
| Operating Voltage | 2.7 to 5.5 | V | |
| Operating Temperature | -40 to +85 | °C | |
| Package | SOT-23-5 |
Key Features
- 70mΩ high-side MOSFET for efficient power switching.
- Accurate current limit (1.1A min, 1.9A max) for safe operation.
- Thermal and short-circuit protection to prevent damage.
- Internal charge pump for controlled rise and fall times, minimizing current surges.
- Undervoltage lockout ensures switch remains off until valid input voltage is present.
Applications
The TPS2065DDBVT is widely used in applications requiring robust power distribution and protection. It is ideal for USB power switches, where it ensures safe and efficient power delivery. Additionally, it is suitable for systems with heavy capacitive loads, such as portable devices, consumer electronics, and industrial automation. Its thermal and short-circuit protection features make it a reliable choice for environments where fault conditions are a concern.
Q & A
1. What is the maximum output current of the TPS2065DDBVT?
The maximum continuous output current is 1A.
2. What is the typical current limit of the TPS2065DDBVT?
The typical current limit is 1.5A.
3. What is the operating voltage range of the TPS2065DDBVT?
The operating voltage range is from 2.7V to 5.5V.
4. Does the TPS2065DDBVT have thermal protection?
Yes, it features thermal protection to prevent damage from overheating.
5. What is the on-resistance of the TPS2065DDBVT?
The maximum on-resistance is 70mΩ.
6. What package does the TPS2065DDBVT come in?
It is available in a SOT-23-5 package.
7. Is the TPS2065DDBVT suitable for USB power switch applications?
Yes, it is specifically designed for USB power switch applications.
8. What is the minimum operating temperature of the TPS2065DDBVT?
The minimum operating temperature is -40°C.
9. Does the TPS2065DDBVT have short-circuit protection?
Yes, it includes short-circuit protection to ensure safe operation.
10. What is the purpose of the internal charge pump in the TPS2065DDBVT?
The internal charge pump controls the rise and fall times of the power switch, minimizing current surges during switching.
