TPS25947
- Wide operating input voltage range: 2.7V to
23V
- 28V absolute maximum
- Withstands negative voltages up to –15V
- Integrated back-to-back FETs with low on-resistance: RON = 28.3mΩ (typical)
- Ideal diode operation with true reverse-current blocking
- Fast overvoltage protection
- Overvoltage clamp (OVC) with pin-selectable threshold (3.8V, 5.7V, 13.8V) and 5µs (typical) response time OR
- Adjustable overvoltage lockout (OVLO) with 1.2µs (typical) response time
- Overcurrent protection with load current monitor output (ILM)
- Active current limit OR circuit-breaker options
- Adjustable threshold (ILIM) 0.5A to 6A
- ±10% accuracy for ILIM > 1A
- Adjustable transient blanking timer (ITIMER) to allow peak currents up to 2 × ILIM
- Output load current monitor accuracy: ±6% (IOUT ≥ 1A)
- Fast-trip response for short-circuit protection
- 500ns (typical) 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 outputs
- Priority power MUX control (AUXOFF) and fault indication (FLT) or
- Power Good indication (PG) with adjustable threshold (PGTH)
- UL 2367 recognition
- File No. E339631
- RILM ≥ 750Ω
- IEC 62368-1 CB certified
- Small footprint: QFN 2mm × 2mm, 0.45mm pitch
The TPS25947xx 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, reverse polarity and excessive inrush current. With integrated back-to-back FETs, reverse current flow from output to input is blocked at all times, making the devices an excellent choice for power MUX/ORing applications as well as systems which need load side energy hold up storage in case input power supply fails. The devices use linear ORing based scheme to establish an almost zero DC reverse current and emulate ideal diode behavior with minimum forward voltage drop and power dissipation.
Output slew rate and inrush current can be adjusted using an external capacitor. Loads are protected from input overvoltage conditions either by clamping the output to a safe fixed maximum voltage (pin selectable), or by cutting off the output if input exceeds an adjustable overvoltage threshold. The devices respond to output overload by actively limiting the current or breaking the circuit. 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 2mm × 2mm, 10-pin HotRod™ QFN package for improved thermal performance and reduced system footprint.
The devices are characterized for operation over a junction temperature range from –40°C to +125°C.
관심 가지실만한 유사 제품
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀.
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TPS25947xx, 2.7V to 23V, 5.5A, 28mΩ True Reverse Current Blocking eFuse with Input Reverse Polarity Protection datasheet (Rev. C) | PDF | HTML | 2026. 5. 21 | |
| 애플리케이션 노트 | How eFuse Ensures Integrated FET Operation in Safe Operating Area | PDF | HTML | 2022. 9. 7 | ||
| Application brief | Using an eFuse to Meet IEC62368-3 for USB 2.0 and USB 3.1 Power Sourcing Ports | PDF | HTML | 2022. 2. 7 | ||
| 인증서 | TPS25947x UL2367 Certificate of Compliance E169910 | 2022. 1. 19 | |||
| 인증서 | TPS25947x UL2367 Certificate of Compliance E339631 | 2022. 1. 18 | |||
| 인증서 | TPS25947x CB Test Certificate IEC 62368-1 | 2021. 12. 8 | |||
| 애플리케이션 노트 | Basics of Power MUX (Rev. A) | PDF | HTML | 2020. 10. 20 | ||
| Application brief | Fast Role Swap, Linear ORing with TPS25947 and LM73100 in USB-Type C Systems (Rev. A) | PDF | HTML | 2020. 10. 7 | ||
| Application brief | eFuses in Smart Electricity Meters | PDF | HTML | 2020. 9. 1 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
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주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.