Overview
The TPS2041CDBVT is a single-channel, current-limited USB power distribution switch IC manufactured by Texas Instruments. This compact, high-performance device is designed for applications requiring reliable power management and protection in USB-powered systems. It features a low on-resistance MOSFET, ensuring efficient power delivery with minimal voltage drop. The TPS2041CDBVT is housed in a SOT-23 package, making it suitable for space-constrained designs. Its primary target users include developers of consumer electronics, industrial automation, and portable devices, where USB power distribution and protection are critical. The device's competitive edge lies in its robust overcurrent and thermal protection mechanisms, ensuring safe operation under various load conditions.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 2.7 to 5.5 | V | Supports USB voltage levels |
| Continuous Output Current | 1 | A | Typical value |
| On-Resistance (RDS(ON)) | 70 | mΩ | Ensures low power loss |
| Package | SOT-23 | - | Compact form factor |
| Operating Temperature Range | -40 to 85 | °C | Suitable for industrial environments |
| Overcurrent Threshold | 1 | A | Adjustable |
| Thermal Shutdown | Yes | - | Protects against overheating |
Key Features
- Integrated 70mΩ N-channel MOSFET for efficient power switching.
- Adjustable current limiting to protect against overcurrent and short-circuit conditions.
- Thermal shutdown feature prevents damage from excessive heat.
- Internal charge pump ensures controlled rise and fall times, reducing current surges.
- Wide input voltage range (2.7V to 5.5V) compatible with USB power standards.
Applications
The TPS2041CDBVT is widely used in USB power distribution systems, including portable devices, consumer electronics, and industrial automation. Its ability to manage power efficiently while providing robust protection makes it ideal for applications such as USB hubs, battery-powered devices, and embedded systems. In industrial settings, it ensures reliable power delivery to sensors and controllers, while in consumer electronics, it safeguards devices like smartphones and tablets from overcurrent and thermal damage.
Q & A
1. What is the maximum output current of the TPS2041CDBVT?
The maximum continuous output current is 1A.
2. Does the TPS2041CDBVT support thermal shutdown?
Yes, it includes a thermal shutdown feature to protect against overheating.
3. What is the input voltage range for this device?
The input voltage range is 2.7V to 5.5V.
4. What package does the TPS2041CDBVT come in?
It is available in a SOT-23 package.
5. How does the overcurrent protection work?
The device switches to constant current mode when the load exceeds the threshold, limiting the output current to a safe level.
6. Is the TPS2041CDBVT suitable for USB hubs?
Yes, it is ideal for USB hubs due to its current-limiting and thermal protection features.
7. Can it operate in industrial environments?
Yes, it has an operating temperature range of -40°C to 85°C, making it suitable for industrial applications.
8. Does it require external components for the charge pump?
No, the internal charge pump does not require external components.
9. What is the typical on-resistance of the MOSFET?
The typical on-resistance is 70mΩ.
10. Is the TPS2041CDBVT compatible with low-power devices?
Yes, its low on-resistance and efficient design make it suitable for low-power applications.
