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High Voltage I2C Current and Voltage Monitor
Linear Technology Inc.
Description
The LTC4151 and LTC4151-1 are high side power monitors that operate over a wide voltage range of 7V to 80V. In default operation mode, the onboard 12-bit ADC continuously measures high side current, input voltage and an external voltage. Data is reported through the I2C interface when polled by a host. The monitors can also perform on-demand measurement in a snapshot mode. The LTC4151 features a dedicated shutdown pin to reduce power consumption. The LTC4151-1 features split I2C data pins with data in and an inverted data output to drive optoisolators.
Features
Wide Operating Voltage Range: 7V to 80V 12-Bit Resolution for Both Current and Voltages I2C Interface Additional ADC Input Monitors an External Voltage Continuous Scan and Snapshot Modes Shutdown Mode (LTC4151) Reduces Quiescent Current to 120μA Split SDA for Optoisolation (LTC4151-1) Tiny 10-Lead MSOP and 3mm × 3mm DFN Packages
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