The LTC2992's wide operating range is ideal for many applications, especially 48V telecom equipment, Advanced Mezzanine Card (AMC), and blade servers. Built-in shunt regulators provide support for power and negative power monitoring above 100V LTC2992 or continuous or on-demand Measuring current and voltage, calculating power and storing all of this information and the minimum and maximum values in registers accessible via I2C. 4 GPIOs can also be configured as ADC inputs to measure adjacent auxiliary voltages. Over the entire temperature range , The total unadjusted error (TUE) of the measured value is only ± 0.3%. If any of the parameters trigger a user-programmable threshold, the LTC2992 marks an alarm register and pin in accordance with the SMBus alarm response protocol. The 400kHz I2C interface has 9 device addresses , A blocking bus reset timer, and a separate I2C SDA isolated SDA pin. The LTC2992-1 version provides an inverting data output for the inverting optical isolator configuration for the I2C pin.
The LTC2992 and LTC2992-1 are available in commercial, industrial and automotive temperature versions, supporting operating temperatures ranging from 0 ° C to 70 ° C, -40 ° C to 85 ° C and -40 ° C to 125 ° C, respectively Are available in 16-lead 4mm x 3mm DFN packages and 16-lead MSOP packages that meet RoHS requirements, starting at $ 3.85 per tablet.