LTC2946IDE-1#PBF

$6.64

Description：POWER SUPPLY SUPPORT CIRCUIT
Series：-
Mfr：Linear Technology
Package：Bulk

SKU:9e98b0747482 Category: Energy Metering Brand: Linear Technology

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Product introduction

Product Detailed Parameters

Description：POWER SUPPLY SUPPORT CIRCUIT
Series：-
Mfr：Linear Technology
Package：Bulk
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：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：16-WFDFN Exposed Pad
Supplier Device Package：16-DFN (4x3)
Grade：-
Qualification：-

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LTC2946IDE-1#PBF

Overview

The LTC2946IDE-1#PBF is a wide-range power, charge, and energy monitor designed for automotive applications. It measures current, voltage, power, charge, and energy with an operating supply range of 2.7V to 100V. The device includes a shunt regulator for handling supplies above 100V. It features a 16-pin DFN EP package and supports I2C communication interfaces.

Feature Summary

Rail-to-rail system monitoring capability for comprehensive electrical parameter measurement
Integrated shunt regulator enables operation in high-voltage environments exceeding 100V
Supports bidirectional power monitoring with energy and charge tracking functions

Applications

-48V system power monitoring using low-side sensing
Wide-range negative power monitoring from -4V to -500V
Harsh environment applications requiring tolerance to 200V transients

Procurement Notes

Verify the specific suffix configuration against official Analog Devices documentation to ensure correct interface speed and package type. Confirm automotive grade qualification status if required for the target application. Cross-reference the full part number including the #PBF designation to match the tube packaging variant rather than the tape and reel option.

Selection Notes

Select this component when precise measurement of cumulative charge and energy is required alongside instantaneous power data. The integrated shunt regulator simplifies design for systems with voltage spikes or high common-mode voltages. Ensure the I2C interface speed requirements align with the specific sub-model capabilities defined in the datasheet.

Part Context

This device belongs to the LTC2946 family of single-channel power monitors manufactured by Analog Devices. It provides a complete solution for monitoring electrical parameters in complex power distribution networks. The family offers various package options and interface speeds to suit different board space and performance constraints.