Analog Devices dual-wide range power monitor | Heisener Electronics
連絡先
SalesDept@heisener.com +86-755-83210559-810
Language Translation

* Please refer to the English Version as our Official Version.

Analog Devices dual-wide range power monitor

Technology Cover
投稿日: 2023-02-01, Analog Devices Inc.

The LTC2992 is a rail-to-rail system monitor that measures the current, voltage, and power of two power sources. It operates in a range of 2.7V to 100V and includes a shunt regulator for power supplies above 100V. The voltage range from 0V to 100V is independent of the input power supply. Two ADCs simultaneously measure the current of each power source. A third ADC monitors the input voltage and four auxiliary external voltages.

Typical application

                    

The current and power of each supply is added to the total system consumption. Minimum and maximum values are stored, and overrange alerts are programmable thresholds to minimize the need for software polling. Data is reported through the standard I2C interface. Shutdown mode typically reduces current consumption to 25μA.

Function diagram

      

The LTC2992 I2C interface includes separate data input and output pins for standard or optically isolated I2C connections. The LTC2992-1 has inverted data output for inverted optical isolator configuration.

Time diagram

             

関連製品