Overview
The TPS2553DRVT from Texas Instruments is a power-distribution switch designed for applications requiring precision current limiting, particularly in scenarios involving heavy capacitive loads and short circuits. This device is part of the TPS255x family, which includes both constant-current and latch-off versions. It provides up to 1.5 A of continuous load current and is suitable for a wide range of applications, including those requiring USB current-limiting compliance.
Key Specifications
| Parameter | Value |
|---|---|
| Maximum Load Current | Up to 1.5 A |
| Current-Limit Accuracy | ±6% at 1.7 A (Typical) |
| Adjustable Current Limit | 75 mA to 1700 mA (Typical) |
| Operating Voltage Range | 2.5 V to 6.5 V |
| High-Side MOSFET Resistance | 85 mΩ (DBV Package) |
| Overcurrent Response Time | 2 µs (Typical) |
| ESD Protection | 15 kV per IEC 61000-4-2 (With External Capacitance) |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | WSON (DRV) - 6 pins |
Key Features
- Up to 1.5-A Maximum Load Current
- ±6% Current-Limit Accuracy at 1.7 A (Typical)
- Meets USB Current-Limiting Requirements
- Backwards Compatible With TPS2550 and TPS2551
- Adjustable Current Limit: 75 mA to 1700 mA (Typical)
- Constant-Current (TPS255x) and Latch-Off (TPS255x-1) Versions
- Fast Overcurrent Response - 2 µs (Typical)
- 85-mΩ High-Side MOSFET (DBV Package)
- Reverse Input-Output Voltage Protection
- Built-In Soft Start
- 15-kV ESD Protection per IEC 61000-4-2 (With External Capacitance)
- UL Listed – File No. E169910 and NEMKO IEC60950-1-am1 ed2.0
Applications
The TPS2553DRVT is suitable for various applications, including:
- USB power management
- Power distribution in consumer electronics
- Automotive systems requiring robust current limiting
- Industrial control systems with heavy capacitive loads
- Any scenario requiring precision current limiting and overcurrent protection
Q & A
- What is the maximum load current of the TPS2553DRVT?
The TPS2553DRVT can handle up to 1.5 A of continuous load current.
- What is the current-limit accuracy of the TPS2553DRVT?
The current-limit accuracy is ±6% at 1.7 A (Typical).
- What is the operating voltage range of the TPS2553DRVT?
The operating voltage range is from 2.5 V to 6.5 V.
- Does the TPS2553DRVT provide ESD protection?
- What types of overcurrent protection does the TPS2553DRVT offer?
The device offers both constant-current and latch-off versions for overcurrent protection.
- Is the TPS2553DRVT backwards compatible with other models?
- What is the response time for overcurrent conditions?
The overcurrent response time is 2 µs (Typical).
- Does the TPS2553DRVT have built-in soft start functionality?
- What kind of voltage protection does the TPS2553DRVT offer?
- Is the TPS2553DRVT UL listed?
