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Производитель:Linear Technology

Wide Range I2C Power Monitor


На английском языке: Datasheet Linear Technology LTC2945IMS-1#PBF

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Варианты написания: LTC2945IMS-1PBF, LTC2945IMS-1 PBF, LTC2945IMS1#PBF, LTC2945IMS 1#PBF

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LTC2945 Wide Range I2C Power Monitor FeaTures n DescripTion
The LTC®2945 is a rail-to-rail system monitor that measures current, voltage, and power. It features an operating range of 2.7V to 80V and includes a shunt regulator for supplies above 80V to allow flexibility in the selection of input supply. The current measurement range of 0V to 80V is independent of the input supply. An onboard 0.75% accurate 12-bit ADC measures load current, input voltage and an auxiliary external voltage. A 24-bit power value is generated by digitally multiplying the measured 12-bit load current and input voltage data. Minimum and maximum values are stored and an overrange alert with programmable thresholds minimizes the need for software polling. Data is reported via a standard I2C interface. Shutdown mode reduces power consumption to 20µA. The LTC2945 I2C interface includes separate data input and output pins for use with standard or opto-isolated I2C connections. The LTC2945-1 has an inverted data output for use with inverting opto-isolator configurations.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Rail-to-Rail Input Range: 0V to 80V Wide Input Supply Range: 2.7V to 80V Shunt Regulator for Supplies >80V ADC with less than ±0.75% Total Unadjusted Error 12-Bit Resolution for Current and Voltages Internal Multiplier Calculates 24-Bit Power Value Stores Minimum and Maximum Values Alerts When Limits Exceeded Additional ADC Input Monitors an External Voltage Continuous Scan and Snapshot Modes Shutdown Mode with IQ < 80µA Split SDA for Opto-Isolation Available in 12-Lead 3mm Ч 3mm QFN and MSOP Packages applicaTions Telecom Infrastructure Industrial Automotive Consumer Typical applicaTion
Wide Range Power Monitor with Onboard ADC and I2C
VIN 4V TO 80V 0.02 TO LOAD 0.3 0.2 0.1 0.0 ­0.1 ­0.2 ­0.3 ADC Differential Nonlinearity (ADIN)
0.3 0.2 0.1...

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