LTC2941IMS8E#PBF

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LTC2941IMS8E#PBF

IC BATT MON LI-ION 1CELL 8MSOP

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規格

Package Tube
ProductStatus Active
Function Battery Monitor
BatteryChemistry Lithium Ion
NumberofCells 1
Interface I²C
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) Exposed Pad

概述

Description

The LTC2941IMS8E#PBF is a Linear Technology (now Analog Devices) battery-gauge IC. It’s a Pb-free, 8-lead MSOP/IMS8 package (the #PBF suffix denotes Pb-free/RoHS-compliant packaging). The device is an I2C-capable coulomb counter/gas gauge designed for single-cell battery packs. It monitors battery voltage and current (via a sense resistor), internally integrates current to track charge/discharge, and reports results such as accumulated charge, voltage, and status flags over I2C. It’s intended for portable, battery-powered devices to estimate state of charge and monitor battery health with low quiescent current. Typical uses include wearables, sensors, and other compact electronics where accurate SOC estimation and battery monitoring are required. For exact electrical characteristics, register map, and programming details, refer to the LTC2941 datasheet.

Features

Key features of LTC2941IMS8E#PBF (8-lead MSOP, RoHS):
- Single-cell Li-ion/Li-poly gas gauge with coulomb counting
- I2C-compatible digital interface for configuration and data readout
- Measures battery voltage and current via external sense resistor
- Programmable full-scale current for SOC calculation; real-time state of charge and remaining capacity
- Coulomb counting with automatic calibration/learning and charge/discharge detection
- Data outputs for voltage, current, accumulated charge, and SOC; configurable data update rate
- Low quiescent current with suitable sleep/low-power modes for portable apps
- Small 8-pin package (IMS8E) with exposed pad; RoHS compliant (#PBF)
- Wide operating supply range (typ. 2.7V–5.5V) and temperatures suitable for mobile devices
Optional: includes status/interrupt flags for faults and alerts; supports straightforward integration into battery management plans.

Package

An 8-pin MSOP (Micro Small-Outline Package). The #PBF suffix indicates Pb-free/RoHS-compliant packaging.

Pinout

- Pin count: 8 pins (MSOP-8/IMS8 package).
- Function: Battery fuel gauge (coulomb counter) with I2C interface for Li‑ion/Li‑polymer cells. It measures current via a sense resistor and battery voltage to compute state-of-charge and remaining capacity, reporting data to a host.

Manufacturer

Manufacturer: Analog Devices, Inc. (the LTC prefix comes from Linear Technology, which was acquired by ADI in 2017).
What kind of company: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and precision ICs (including power-management and sensing devices).

Application

- Single-cell Li-Ion/Li-Pol battery-powered products needing coulomb counting and state-of-charge estimation
- Portable electronics and wearables, handheld meters, remote sensors
- Cordless tools and other battery-powered equipment
- Embedded systems with battery backup requiring voltage/current/temperature monitoring and I2C-based battery management

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