LTC2946HDE#TRPBF

Overview

The LTC2946HDE#TRPBF is a rail-to-rail system monitor manufactured by Analog Devices Inc., designed for measuring current, voltage, power, charge, and energy. It operates within a supply voltage range of 2.7 V to 100 V and includes a shunt regulator for supplies exceeding 100 V. The device features an I2C interface with configurable clock rates up to 1.5 kHz or 10 kHz. Packaged in a 16-lead DFN EP (4x3 mm) format, it supports surface-mount installation and functions across a temperature range of -40°C to +125°C.

Feature Summary

• Measures current, voltage, power, charge, and energy simultaneously
• Rail-to-rail operation with integrated shunt regulator for high-voltage supplies
• Configurable I2C interface supporting multiple clock speeds

Applications

• -48V systems using low-side sensing for power, charge, and energy monitoring
• Wide range negative power, charge, and energy monitoring
• Bidirectional power monitoring with energy and charge measurement in the forward path

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. Ensure the component matches the 16-lead DFN EP package dimensions. Check RoHS compliance status against current regulatory requirements before integration into production designs.

Selection Notes

Select this part for applications requiring simultaneous multi-parameter electrical measurement. The wide common-mode voltage range accommodates various supply architectures. The integrated shunt regulator simplifies design for high-voltage environments. Verify that the required I2C clock speed aligns with system communication constraints.

Part Context

This component belongs to the LTC2946 series of single-phase energy monitors. It shares functional similarities with variants like the LTC2946HMS#PBF but differs in package type and reel configuration. The series is categorized under Power Supply Controllers and Monitors within Analog Devices' portfolio.

Replacement Considerations

LTC2946HDE#PBF is the tube-packaged equivalent of this component.