Overview
The TPS2553DDBVR, manufactured by Texas Instruments, is a high-side power distribution switch designed for applications requiring precise current limiting or handling heavy capacitive loads and short circuits. This device is capable of delivering up to 1.5A of continuous load current and offers programmable current limit thresholds between 75mA and 1.7A via an external resistor. With its advanced features and robust design, the TPS2553DDBVR is ideal for use in communication, multimedia, and consumer electronics, providing reliable protection and efficient power management.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Maximum Load Current | 1.5 | A | |
| Current Limit Range | 75 to 1700 | mA | Typical |
| Current Limit Accuracy | ±6 | % | At 1.7A |
| On-Resistance | 85 | mΩ | |
| Operating Voltage Range | 2.5 to 6.5 | V | |
| Fault Response Time | 2 | µs | Typical |
| Package | SOT-23-6 | ||
| Operating Temperature | -40 to +150 | °C |
Key Features
- Adjustable current limit from 75mA to 1.7A.
- ±6% current limit accuracy at 1.7A.
- Built-in soft start to minimize inrush current.
- Reverse voltage protection to safeguard input-side devices.
- Fast overcurrent response time of 2µs.
- Compatible with USB current limiting requirements.
Applications
The TPS2553DDBVR is widely used in various applications such as communication networks, multimedia devices, and consumer electronics. Its ability to provide precise current limiting and protection against overcurrent and reverse voltage conditions makes it an excellent choice for USB power management, portable devices, and other power-sensitive applications. The device ensures reliable operation and protection in environments with heavy capacitive loads or potential short circuits.
Q & A
What is the maximum load current of the TPS2553DDBVR?
The TPS2553DDBVR can handle a maximum continuous load current of 1.5A.
How is the current limit set in the TPS2553DDBVR?
The current limit is programmable between 75mA and 1.7A using an external resistor.
What is the typical current limit accuracy of the TPS2553DDBVR?
The current limit accuracy is typically ±6% at 1.7A.
Does the TPS2553DDBVR provide reverse voltage protection?
Yes, it includes internal reverse voltage protection to disable the power switch when the output voltage exceeds the input voltage.
What is the operating voltage range of the TPS2553DDBVR?
The device operates within a voltage range of 2.5V to 6.5V.
What is the on-resistance of the TPS2553DDBVR?
The on-resistance is 85mΩ.
What is the fault response time of the TPS2553DDBVR?
The fault response time is typically 2µs.
Is the TPS2553DDBVR compatible with USB power management?
Yes, it meets USB current limiting requirements.
What package does the TPS2553DDBVR come in?
It is available in a SOT-23-6 package.
What is the operating temperature range of the TPS2553DDBVR?
The device can operate in temperatures ranging from -40°C to +150°C.
