LTC2947IUFE#PBF

LTC2947 is a high precision power and energy monitor with an internal sense resistor supporting upto ±30A. Three internal No Latency Δ∑™ ADCs ensure accurate measurement of voltage and current, while high-bandwidth analogue multiplication of voltage and current provides accurate power measurement in a wide range of applications. Internal or external clocking options enable precise charge and energy measurements. An internal 300µ ohm, temperature-compensated sense resistor minimizes efficiency loss and external components, simplifying energy measurement applications while enabling high accuracy current measurement over the full temperature range. All measured quantities are stored in internal registers accessible via the selectable I²C/SPI interface. It features programmable high and low thresholds for all measured quantities to reduce digital traffic with the host. It is used in application like servers, telecom infrastructure, industrial, electric vehicles, photovoltaics etc.

• Measures current, voltage, power, charge, energy
• ±30A current range with low 9mA offset
• Instantaneous multiplication of voltage and current
• Supply voltage is 4.75V to 15V
• Alerts when thresholds exceeded, stores maximum and minimum values
• Shutdown mode with is 10μA
• 1% current and charge accuracy, 0.5% voltage accuracy
• 1.2% power and energy accuracy
• Operating ambient temperature is -40°C to 85°C, package style is 32-lead plastic QFN

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party