Overview
The TPS2001DDBVT power-distribution switch, produced by Texas Instruments, is designed for applications where heavy capacitive loads and short circuits are likely to be encountered. This includes scenarios such as USB ports, laptops, and high-definition digital TVs. The device operates in a constant-current mode when the output load exceeds the current limit threshold, providing a predictable fault current under all conditions. It features fast overcurrent response, built-in soft start, and output discharge capabilities, making it suitable for managing power distribution in various electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Rated Current | 2 | A |
| Current Limit Accuracy | ±20% | |
| Overcurrent Response Time | 2 | µs |
| Ambient Temperature Range | -40 to 85 | °C |
| Input Voltage Range | 4.5 to 5.5 | V |
| Package Type | SOT-23 (5-pin) | |
| Body Size (Nominal) | 2.90 mm × 1.60 mm | |
| On-Resistance | 72 mΩ (typical) |
Key Features
- Single Power Switch Family
- Fixed, Constant Current Limit with ±20% Accuracy
- Fast Overcurrent Response: 2 µs
- Deglitched Fault Reporting with 9-ms Deglitch Timer
- Output Discharge: 470-Ω (typical) pulldown resistor
- Reverse Current Blocking
- Built-In Soft Start
- UL Listed and CB-File No. E169910
Applications
- USB Ports and Hubs
- Laptops and Desktops
- High-Definition Digital TVs
- Set-Top Boxes
- Short-Circuit Protection in Various Electronic Systems
Q & A
- What is the primary function of the TPS2001DDBVT?
The TPS2001DDBVT is a power-distribution switch designed to manage power distribution in applications with heavy capacitive loads and potential short circuits.
- What is the rated current of the TPS2001DDBVT?
The rated current of the TPS2001DDBVT is 2 A.
- How accurate is the current limit of the TPS2001DDBVT?
The current limit of the TPS2001DDBVT is accurate to ±20%.
- What is the overcurrent response time of the TPS2001DDBVT?
The overcurrent response time is 2 µs.
- What is the ambient temperature range for the TPS2001DDBVT?
The ambient temperature range is -40°C to 85°C.
- What type of package does the TPS2001DDBVT come in?
The TPS2001DDBVT comes in a SOT-23 (5-pin) package.
- Does the TPS2001DDBVT have built-in fault reporting?
Yes, the TPS2001DDBVT features deglitched fault reporting with a 9-ms deglitch timer.
- What is the purpose of the output discharge feature in the TPS2001DDBVT?
The output discharge feature, with a typical 470-Ω pulldown resistor, dissipates stored charge and leakage current when the device is in undervoltage lockout (UVLO) or disabled.
- Is the TPS2001DDBVT certified by any safety standards?
Yes, the TPS2001DDBVT is UL Listed and has a CB-File No. E169910.
- What are some common applications for the TPS2001DDBVT?
Common applications include USB ports and hubs, laptops, desktops, high-definition digital TVs, and set-top boxes.
