TPS2553-1
- Up to 1.5A maximum load current
- ±6% current-limit accuracy at 1.7A (Typical)
- Meets USB current-limiting requirements
- Backwards compatible with TPS2550 and TPS2551
- Adjustable Current Limit: 75mA to 1700mA (Typical)
- Constant-current (TPS255x) and latch-off (TPS255x-1) versions
- Fast overcurrent response - 2µs (Typical)
- 85mΩ high-side MOSFET (DBV package)
- 100mΩ high-side MOSFET (DRV package)
- Reverse input-output voltage protection
- Operating range: 2.5V to 6.5V
- Built-in soft start
- TPS25530-1 additional features:
- Quick Output Discharge (QOD)
- 2.5A continuous current in DRV package
- ±6% current-limit accuracy at 2.64A (Typical)
- 15kV ESD protection per IEC 61000-4-2 (with external capacitance)
- Safety-related certifications:
- UL listed – File No. E169910
-
NEMKO IEC60950-1-am1 ed2.0
- See the Load switches portfolio
The TPS255x and TPS255x-1 power-distribution switches are intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered and provide up to 1.5A of continuous load current. These devices offer a programmable current-limit threshold from 75mA to 1.7A (typical) through an external resistor. Current-limit accuracy as tight as ±6% can be achieved at the higher current-limit settings. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff.
TPS255x devices limit the output current to a safe level by using a constant-current mode when the output load exceeds the current-limit threshold. TPS255x-1 devices provide circuit breaker functionality by latching off the power switch during overcurrent or reverse-voltage situations. An internal reverse-voltage comparator disables the power-switch when the output voltage is driven higher than the input to protect devices on the input side of the switch. The FAULT output asserts low during overcurrent and reverse-voltage conditions.
The TPS25530-1 devices have an integrated quick output discharge path when the switch is turned off, pulling the output down to ground. The current limit range is also extended to 2.64A (typical) with the 10kΩ ILIM setting for this device.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TPS255xx Precision Adjustable Current-Limited Power-Distribution Switches datasheet (Rev. G) | PDF | HTML | 2026. 10. 27 | |
| 인증서 | TPS255x UL 2367 Certificate of Compliance E169910-20090213 | 2024. 6. 25 | |||
| 인증서 | TPS255x UL Certificate of Compliance IEC 62368-1 (Rev. A) | 2024. 6. 24 | |||
| 선택 가이드 | Power Management Guide 2018 (Rev. R) | 2018. 6. 25 | |||
| EVM User's guide | Power-Distribution Switch with Adjustable Current-Limit Evaluation Module | 2008. 10. 8 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS2553DBV1EVM-364 — TPS2553DBV1EVM-364용 조정 가능한 전류 제한을 지원하는 전력 분배 스위치 평가 모듈
The TPS2552/3DBVEVM and TPS2552/3DRVEVM are evaluation modules (EVM) for Texas Instruments’family of power-distribution switches with adjustable current-limit. These EVMs operate over a 2.5 V to 6.5 V range. An onboard jumper sets the output current-limit to either 0.5 A or (...)
TPS2553DRV1EVM-364 — TPS2553DRV1EVM-364용 조정 가능한 전류 제한을 지원하는 전력 분배 스위치 평가 모듈
The TPS2552/3DBVEVM and TPS2552/3DRVEVM are evaluation modules (EVM) for Texas Instruments’family of power-distribution switches with adjustable current-limit. These EVMs operate over a 2.5 V to 6.5 V range. An onboard jumper sets the output current-limit to either 0.5 A or (...)
TPS2553-1 Unencrypted PSpice Transient Model Package (Rev. A)
TPS255X-CURRENT-LIMIT-CALC — Current-Limit Calculator
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOT-23 (DBV) | 6 | Ultra Librarian |
| WSON (DRV) | 6 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.