데이터시트
LM34966-Q1
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +125°C TA
- Maximum operating temperature 150°C TJ
- Functional Safety-Capable
- Suited for wide input operating range car battery applications
- 3.5-V to 40-V operating range (45-V abs max)
- 2.97-V to 16-V when BIAS = VCC
- Minimum boost supply voltage 1.5 V when BIAS ≥ 3.5 V
- Input transient protection up to 45 V
- Minimized battery drain
- Low shutdown current ( IQ ≤ 2.6 µA )
- Low operating current ( IQ ≤ 490 µA )
- Small solution size and low cost
- Integrated error amplifier allows primary-side regulation without optocoupler (flyback)
- Minimized undershoot during cranking (start-stop application)
- Higher efficiency with low-power dissipation
- 100-mV ±7% accurate current limit threshold
- Strong 1.0-A peak standard MOSFET driver
- Supports external VCC supply
- Avoid AM band interference and crosstalk
- Optional clock synchronization
- Dynamically programmable switching frequency from 100 kHz to 500 kHz
- Integrated protection features
- Constant peak current limiting over input voltage
- Hiccup mode overload protection
- Programmable line UVLO
- OVP protection
- Thermal shutdown
- Accurate ±1% accuracy feedback reference
- Programmable extra slope compensation
- Adjustable soft start
- PGOOD indicator
- 14-Pin HTSSOP package (5.0 mm × 4.4 mm)
- Create a custom design using the LM34966-Q1 with the WEBENCH power designer
The LM34966-Q1 is a wide input range, non-synchronous boost controller that uses peak current mode control. The device can be used in boost, SEPIC, and flyback topologies. The device can start up from a 1-cell battery with a minimum of 2.97 V if the BIAS pin is connected to the VCC pin. It can operate with the input supply voltage as low as 1.5 V if the BIAS pin is greater than 3.5 V. The internal VCC regulator also supports BIAS pin operation up to 40 V (45-V absolute maximum) for automotive load dump. The switching frequency is dynamically programmable with an external resistor from 100 kHz to 500 kHz.
관심 가지실만한 유사 제품
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
기술 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
모두 보기4 | 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LM34966-Q1 500kHz Wide VIN Non-synchronous Boost/SEPIC/Flyback Controller datasheet | PDF | HTML | 2020/09/23 |
| Functional safety information | LM34966-Q1, LM5156x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution (Rev. C) | PDF | HTML | 2021/04/28 | |
| EVM User's guide | LM34966EVM-FLY Flyback Evaluation Module | PDF | HTML | 2020/09/28 | |
| Certificate | LM34966EVM-FLY EU Declaration of Conformity (DoC) | 2020/09/10 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
평가 보드
LM34966EVM-FLY — LM34966 플라이백 컨트롤러 평가 모듈
The LM34966EVM-FLY evaluation module showcases the features and performance of the LM34966-Q1 as wide input non-synchronous flyback controller. The standard configuration is designed to provide a regulated output of 5V at 4A from an input of 18V to 36V, switching at 250 kHz. This evaluation (...)
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| HTSSOP (PWP) | 14 | 옵션 보기 |
주문 및 품질
포함된 정보:
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
포함된 정보:
- 팹 위치
- 조립 위치