LTC2947IUHF-65#TRPBF

Overview

The LTC2947IUHF-65#TRPBF is a high-current power and energy monitor manufactured by Analog Devices Inc. It integrates a precision sense resistor capable of handling up to 65A, eliminating the need for external shunt components. The device utilizes an SPI or digital interface for communication, providing accurate measurements of current, voltage, power, and accumulated energy. Designed for industrial applications, it operates within a specified temperature range and supports direct connection to microcontrollers or DSPs for system monitoring.

Feature Summary

• Integrates a low-resistance sense element rated for high current loads
• Provides simultaneous measurement of current, voltage, power, and energy
• Features a serial peripheral interface for digital data transfer
• Supports bidirectional current flow detection

Applications

• Industrial motor drive current sensing
• Power supply output monitoring
• Battery management systems requiring high-current tracking
• Server and telecom power distribution units

Procurement Notes

Verify the specific suffix and tape-and-reel packaging configuration against the manufacturer's latest documentation before ordering. Confirm that the integrated sense resistor value matches the required current rating for the target application. Ensure compatibility with the host controller's SPI protocol settings and voltage levels. Check for any recent product change notices regarding pinout or electrical characteristics updates.

Selection Notes

Select this component when high accuracy in power and energy accumulation is required without external shunt resistors. Consider the thermal dissipation capabilities of the integrated resistor under maximum load conditions. Evaluate the package size constraints relative to the available board space. Compare interface requirements with other monitors if I2C is preferred over SPI.

Part Context

This part belongs to the LTC2947 family of power monitors, which are designed for precise energy metering and protection. The series offers various current ratings and interface options to suit different system architectures. It serves as a critical component for monitoring power integrity in complex electronic systems where efficiency and safety are paramount.

Replacement Considerations

Consult official substitution lists for equivalent parts with similar current ratings and interface types. Verify pin-to-pin compatibility if replacing directly on existing boards. Ensure that alternative devices support the same energy accumulation functions and accuracy specifications.