LMP8645
- Typical Values, TA = 25°C
- High Common-Mode Voltage Range
- LMP8645 –2 V to 42 V
- LMP8645HV –2 V to 76 V
- Supply Voltage Range 2.7 V to 12 V
- Gain Configurable With a Single Resistor
- Maximum Variable Gain Accuracy (With External Resistor) 2%
- Transconductance 200 µA/V
- Low Offset Voltage 1 mV
- Input Bias 12 µA
- PSRR 90 dB
- CMRR 95 dB
- Temperature Range −40°C to 125°C
- 6-Pin SOT Package
The LMP8645 and the LMP8645HV devices are precision current sense amplifiers that detect small differential voltages across a sense resistor in the presence of high-input common-mode voltages.
Operating from a supply range of 2.7 V to 12 V, the LMP8645 accepts input signals with a common-mode voltage range of –2 V to 42 V, while the LMP8645HV accepts input signals with a common-mode voltage range of –2 V to 76 V. The LMP8645 and LMP8645HV have adjustable gain for applications where supply current and high common-mode voltage are the determining factors. The gain is configured with a single resistor, providing a high level of flexibility, as well as accuracy as low as 2% (maximum) including the gain setting resistor. The output is buffered to provide low output impedance. This high-side current sense amplifier is ideal for sensing and monitoring currents in DC or battery-powered systems, has excellent AC and DC specifications over temperature, and keeps errors in the current sense loop to a minimum. The LMP8645 is an ideal choice for industrial, automotive, and consumer applications, and is available in SOT-6 package.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | LMP8645, LMP8645HV Precision High Voltage Current Sense Amplifier datasheet (Rev. H) | PDF | HTML | 2022年 5月 2日 |
Application note | Using a PCB Copper Trace as a Current-Sense Shunt Resistor | PDF | HTML | 2022年 1月 25日 | |
Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
EVM User's guide | AN-1975 LMP8640 / LMP8645 Evaluation Board User Guide (Rev. C) | 2013年 4月 26日 |
設計與開發
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封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
SOT-23-THN (DDC) | 6 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點