LM74720-Q1
- AEC-Q100 qualified with the following results
- Device temperature grade 1: –40°C to +125°C ambient operating temperature range
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
- 3-V to 65-V input range
- Reverse input protection down to –65 V
- Low quiescent current, 35 µA (max) in operation
- Low 3.3-µA (max) shutdown current (EN = Low)
- Ideal diode operation with 17-mV A to C forward voltage drop regulation
- Drives external back-to-back N-Channel MOSFETs
- Integrated 29-mA boost regulator
- Fast response to reverse current blocking: 0.5 µs
- Active rectification up to 100 kHz
- Adjustable overvoltage protection
- Meets automotive ISO7637 transient requirements with a suitable TVS diode
- Available in space saving 12-pin WSON package
- Pin-to-pin compatible with LM74721-Q1
The LM74720-Q1 ideal diode controller drives and controls external back-to-back N-Channel MOSFETs to emulate an ideal diode rectifier with power path ON/OFF control and overvoltage protection. The wide input supply of 3 V to 65 V allows protection and control of 12-V and 24-V automotive battery powered ECUs. The device can withstand and protect the loads from negative supply voltages down to –65 V. An integrated ideal diode controller (GATE) drives the first MOSFET to replace a Schottky diode for reverse input protection and output voltage holdup. A strong boost regulator with fast turn ON and OFF comparators ensures robust and efficient MOSFET switching performance during automotive testing such as ISO16750 or LV124 where an ECU is subjected to input short interruptions and AC superimpose input signals up to 100-kHz frequency. Low Quiescent Current 35 µA (maximum) in operation enables always ON system designs. With a second MOSFET in the power path, the device allows load disconnect control using EN pin. Quiescent current reduces to 3.3 µA (maximum) with EN low. The device features an adjustable overvoltage cut-off protection feature for load dump protection.
관심 가지실만한 유사 제품
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | LM74720-Q1 Low IQ Automotive Ideal Diode Controller with Active Rectification and Load Dump Protection datasheet (Rev. B) | PDF | HTML | 2022. 3. 29 | |
| 기능 안전 정보 | LM74720-Q1 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | 2025. 5. 27 | ||
| Product overview | Mobileye EyeQ™6H – Discrete Power Tree | PDF | HTML | 2024. 11. 7 | ||
| 기술 문서 | 3 ways to design a low quiescent-current (Iq) automotive reverse battery protectio | PDF | HTML | 2021. 11. 18 | ||
| 애플리케이션 노트 | Basics of Ideal Diodes (Rev. B) | PDF | HTML | 2021. 10. 5 | ||
| Application brief | Active Rectification and its Advantages in Automotive ECU Designs | PDF | HTML | 2021. 9. 29 | ||
| 아날로그 디자인 학술지 | Automotive EMC-compliant reverse-battery protection with ideal-diode controllers | 2020. 9. 22 |
주문 및 품질
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