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Product Detailed Parameters
- Description：IC ENERGY MONITOR I2C 16DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Input Impedance：-
- Measurement Error：0.40%
- Voltage - I/O High：-
- Voltage - I/O Low：-
- Current - Supply：900µA
- Voltage - Supply：2.7 V ~ 100 V
- Meter Type：Single Phase
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：16-WFDFN Exposed Pad
- Supplier Device Package：16-DFN (4x3)
- Grade：-
- Qualification：-
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Overview
The LTC2946CDE-1#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 2.7V to 100V and includes a shunt regulator for supplies exceeding 100V. The device features an I2C interface with a maximum clock frequency of 1.5kHz. It is housed in a 16-pin DFN EP package and is supplied in tape and reel format.
Feature Summary
- Rail-to-rail system monitoring capability for comprehensive electrical parameter measurement
- Integrated shunt regulator supporting supply voltages above 100V
- I2C digital interface for communication and configuration
Applications
- Power, charge, and energy monitoring in -48V systems using low side sensing
- Bidirectional power monitoring with energy and charge monitoring in the forward path
- Wide range negative power, charge, and energy monitoring applications
Procurement Notes
Verify the specific suffix #TRPBF confirms the tape and reel packaging variant when ordering. Confirm the C grade temperature rating aligns with your operational requirements. Ensure the 1.5kHz I2C speed specification meets your system's communication timing constraints before finalizing procurement.
Selection Notes
Select this component for applications requiring integrated measurement of current, voltage, power, charge, and energy in a single device. The wide operating voltage range up to 100V makes it suitable for various industrial and automotive power rails. Consider the 16-pin DFN EP package for space-constrained designs requiring thermal performance.
Part Context
This part belongs to the LTC2946 family of rail-to-rail system monitors from Analog Devices Inc. The family offers high-precision monitoring capabilities across multiple packages including DFN and MSOP. The CDE-1 designation indicates a specific grade and package combination within this series, optimized for automotive and industrial environments.
Replacement Considerations
Check for other variants within the LTC2946 family such as LTC2946HDE-1 or LTC2946IDE for different temperature grades or interface speeds. Verify pin compatibility and software register mapping if substituting with other members of the same product line.
