Overview
The TPS2553DRVR-1 is a high-side power-distribution switch produced by Texas Instruments. This device is designed for applications requiring precision current limiting, particularly in scenarios involving heavy capacitive loads and short circuits. The TPS2553DRVR-1 provides up to 1.5 A of continuous load current and features adjustable current-limit thresholds between 75 mA and 1.7 A through an external resistor. It is part of the TPS255x and TPS255x-1 family, which includes both constant-current and latch-off versions. The device is backward compatible with the TPS2550 and TPS2551 models and meets USB current-limiting requirements. It also includes built-in soft start, fast overcurrent response, and reverse input-output voltage protection.
Key Specifications
| Specification | Value |
|---|---|
| Maximum Load Current | Up to 1.5 A |
| Current-Limit Accuracy | ±6% at 1.7 A (Typical) |
| Adjustable Current Limit | 75 mA to 1.7 A (Typical) |
| Operating Voltage Range | 2.5 V to 6.5 V |
| High-Side MOSFET Resistance | 85 mΩ |
| ESD Protection | 15 kV per IEC 61000-4-2 (With External Capacitance) |
| Package Type | 6-Pin WSON (DRV) |
| Compliance | UL Listed – File No. E169910, NEMKO IEC60950-1-am1 ed2.0 |
Key Features
- Adjustable current limit between 75 mA and 1.7 A through an external resistor
- Constant-current and latch-off versions (TPS255x and TPS255x-1)
- Fast overcurrent response - 2 µs (Typical)
- Reverse input-output voltage protection
- Built-in soft start to minimize current surges during turn-on and turn-off
- Backward compatible with TPS2550 and TPS2551
- Meets USB current-limiting requirements
- 15 kV ESD protection per IEC 61000-4-2 (With External Capacitance)
Applications
The TPS2553DRVR-1 is suitable for various applications where precision current limiting is essential, such as:
- USB power distribution
- Heavy capacitive loads
- Short circuit protection
- General power management in electronic devices
Q & A
- What is the maximum load current of the TPS2553DRVR-1?
The maximum load current is up to 1.5 A.
- What is the adjustable current limit range of the TPS2553DRVR-1?
The adjustable current limit range is between 75 mA and 1.7 A (Typical).
- What is the operating voltage range of the TPS2553DRVR-1?
The operating voltage range is from 2.5 V to 6.5 V.
- Does the TPS2553DRVR-1 have built-in ESD protection?
Yes, it has 15 kV ESD protection per IEC 61000-4-2 (With External Capacitance).
- What type of package does the TPS2553DRVR-1 come in?
The TPS2553DRVR-1 comes in a 6-Pin WSON (DRV) package.
- Is the TPS2553DRVR-1 backward compatible with other models?
Yes, it is backward compatible with the TPS2550 and TPS2551 models.
- What is the response time for overcurrent conditions?
The overcurrent response time is typically 2 µs.
- Does the TPS2553DRVR-1 have reverse input-output voltage protection?
Yes, it includes reverse input-output voltage protection.
- Is the TPS2553DRVR-1 UL listed?
Yes, it is UL listed – File No. E169910 and NEMKO IEC60950-1-am1 ed2.0.
- What is the purpose of the FAULT output in the TPS2553DRVR-1?
The FAULT output asserts low during overcurrent and reverse-voltage conditions.
