LMP8646
- Provides Circuit Protection and Current Limiting
- Single Supply Operation
- –2-V to 76-V Common-Mode Voltage Range
- Variable Gain Set by External Resistor
- Adjustable Bandwidth Set by External Capacitor
- Buffered Output
- 3% Output Accuracy Achievable at VSENSE = 100 mV
- Key Specifications:
- Supply Voltage Range 2.7 V to 12 V
- Output Current (Source) 0 to 5 mA
- Gain Accuracy 2.0% (max)
- Transconductance 200 µA/V
- Offset ±1 mV (Maximum)
- Quiescent Current 380 µA
- Input Bias 12 µA (Typical)
- PSRR 85 dB
- CMRR 95 dB
- Temperature Range −40°C to 125°C
- 6-Pin SOT Package
The LMP8646 is a precision current limiter used to improve the current limit accuracy of any switching or linear regulator with an available feedback node.
The LMP8646 accepts input signals with a common-mode voltage ranging from –2 V to 76 V. It has a variable gain which is used to adjust the sense current. The gain is configured with a single external resistor, RG, providing a high level of flexibility and accuracy up to 2%. The adjustable bandwidth, which allows the device to be used with a variety of applications, is configurable with a single external capacitor in parallel with RG. In addition, the output is buffered in order to provide a low output impedance.
The LMP8646 is an ideal choice for industrial, automotive, telecommunications, and consumer applications where circuit protection and improved precision systems are required. The LMP8646 is available in a 6-pin SOT package and can operate at temperature range of −40°C to 125°C.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | LMP8646 Precision Current Limiter datasheet (Rev. B) | PDF | HTML | 2014/12/08 |
Application note | Using a PCB Copper Trace as a Current-Sense Shunt Resistor | PDF | HTML | 2022/01/25 | |
Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 | ||
Application brief | Precision LED Brightness and Color Mixing With Discrete Current Sense Amplifiers | 2017/02/28 | ||
Application note | AN-2219 Precision Current Limiting with the LMP8646 and LP38501 (Rev. A) | 2013/04/24 | ||
Application note | AN-2200 Precision Current Limiting with the LMP8646 and LMZ12003 (Rev. A) | 2013/04/23 | ||
Application note | AN-2218 Precision Current Limiting with the LMP8646 and LM3102 (Rev. A) | 2013/04/23 | ||
User guide | LMP8646EB User's Guide | 2012/02/13 |
설계 및 개발
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패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
SOT-23-THN (DDC) | 6 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치