Overview
The TPS2552DRVT-1, produced by Texas Instruments, is a precision adjustable current-limited power-distribution switch. This device is designed for applications requiring precise current limiting and is particularly useful in scenarios involving heavy capacitive loads and short circuits. It is part of the TPS255x family, which includes both constant-current and latch-off versions. The TPS2552DRVT-1 is backwards compatible with the TPS2550 and TPS2551, making it a versatile option for various power management needs.
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) |
| Certifications | UL Listed – File No. E169910 and NEMKO IEC60950-1-am1 ed2.0 |
| Package Type | 6-WSON (2x2) |
Key Features
- Meets USB current-limiting requirements.
- Constant-current and latch-off versions available.
- Fast overcurrent response time of 2 µs (Typical).
- Reverse input-output voltage protection.
- Built-in soft start to minimize current surges during turn-on and turn-off.
- Internal reverse-voltage comparator for protection.
- FAULT output asserts low during overcurrent and reverse-voltage conditions.
Applications
The TPS2552DRVT-1 is suitable for a variety of applications where precise current limiting is essential, such as in USB power distribution, battery charging circuits, and systems with heavy capacitive loads or short circuits. It is also useful in industrial and consumer electronics where robust power management is required.
Q & A
- What is the maximum load current of the TPS2552DRVT-1?
The maximum load current is up to 1.5 A. - What is the current-limit accuracy of the TPS2552DRVT-1?
The current-limit accuracy is ±6% at 1.7 A (Typical). - What is the operating voltage range of the TPS2552DRVT-1?
The operating voltage range is 2.5 V to 6.5 V. - Does the TPS2552DRVT-1 have ESD protection?
Yes, it has 15 kV ESD protection per IEC 61000-4-2 (With External Capacitance). - What certifications does the TPS2552DRVT-1 hold?
It is UL Listed – File No. E169910 and NEMKO IEC60950-1-am1 ed2.0. - What package type is the TPS2552DRVT-1 available in?
It is available in a 6-WSON (2x2) package. - Does the TPS2552DRVT-1 have reverse input-output voltage protection?
Yes, it has reverse input-output voltage protection. - How does the TPS2552DRVT-1 handle overcurrent conditions?
The device limits the output current to a safe level using a constant-current mode or latches off the power switch in latch-off versions. - What is the purpose of the FAULT output in the TPS2552DRVT-1?
The FAULT output asserts low during overcurrent and reverse-voltage conditions. - Is the TPS2552DRVT-1 backwards compatible with other models?
Yes, it is backwards compatible with the TPS2550 and TPS2551.
