TPS25946
- Wide operating input voltage range: 2.7 V to 23 V
- 28-V absolute maximum
- Integrated back-to-back FETs with low on-resistance: RON = 28.3 mΩ (typ.)
- Bi-directional current flow during ON state
- Reverse current blocking during OFF state
- Fast overvoltage protection
- Adjustable Overvoltage Lockout (OVLO) with 1.2-µs (typ.) response time
- Overcurrent protection in forward direction with load current monitor output (ILM)
- Active current limit response
- Adjustable threshold (ILIM): 0.5 A to 6 A
- ±10% accuracy for ILIM > 1 A
- Adjustable transient blanking timer (ITIMER) to allow peak currents up to 2 × ILIM
- Output load current monitor accuracy: ±6% (IOUT ≥ 1 A)
- Fast-trip response for short-circuit protection on OUT pin
- 500-ns (typ.) response time
- Adjustable (2 × ILIM) and fixed thresholds
- Active high enable input with adjustable Undervoltage Lockout threshold (UVLO)
- Adjustable output slew rate control (dVdt)
- Overtemperature protection
- Digital indication options:
- Power Good indication (PG) with adjustable threshold (PGTH) or
- Supply Good (SPLYGD) and Fault (FLT) indications
- UL 2367 recognition
- File No. E339631
-
RILM ≥ 549 Ω
- IEC 62368-1 CB certified
- Small footprint: QFN 2 mm × 2 mm, 0.45-mm pitch
The TPS25946xx family of eFuses is a highly integrated circuit protection and power management solution in a small package. The devices provide multiple protection modes using very few external components and are a robust defense against overloads, short-circuits, voltage surges and excessive inrush current. With integrated back-to-back FETs, the device allows bi-directional current flow during ON state, while blocking current flow in both directions during OFF state, making it well suited for USB OTG (On-The-Go) applications.
Output slew rate and inrush current can be adjusted using a single external capacitor. Loads are protected from input overvoltage conditions by cutting off the output if input exceeds an adjustable overvoltage threshold. The devices respond to output overload by actively limiting the current. The output current limit threshold as well as the transient overcurrent blanking timer are user adjustable. The current limit control pin also functions as an analog load current monitor.
The devices are available in a 2-mm × 2-mm, 10-pin HotRod QFN package for improved thermal performance and reduced system footprint.
The devices are characterized for operation over a junction temperature range of –40°C to +125°C.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TPS25946xx 2.7-V–23-V, 5.5-A, 28-mΩ eFuse with Bidirectional Current Support datasheet (Rev. B) | PDF | HTML | 2022. 4. 4 | |
| 인증서 | TPS25946x UL2367 Certificate of Compliance E339631 | 2022. 1. 24 | |||
| 인증서 | TPS25946x CB Test Certificate IEC 62368-1 | 2022. 1. 19 | |||
| 인증서 | TPS25946x UL2367 Certificate of Compliance E169910 | 2022. 1. 19 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS25946EVM — TPS25946 평가 모듈 양방향 전류 지원을 제공하는 2.7V~23V, 5.5V, 28mΩ eFuse
TPS25946EVM eFuse 평가 보드는 TPS25946 eFuse에 대한 레퍼런스 회로 평가를 지원합니다. TPS25946 장치는 28.3mΩ FET가 결합된 2.7V~23V, 5.5A eFuse입니다. eFuse의 TPS259460x 제품군은 비활성화 시 역전류 방지, 활성화 시 양방향 전류 흐름 기능, 조정 가능한 과전류, 돌입 전류, 단락, 과열 방지, 조정식 과전류 과도 블랭킹 타이머, 조정식 부족 전압 및 과전압 보호, 사용자 정의 출력 회전율 제어 기능을 갖추고 있습니다.
SLVRBH8 — TPS25946 Design Calculator
TVS-RECOMMENDATION-CALC — TVS diode recommendation tool
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VQFN-HR (RPW) | 10 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.