LTC2942IDCB#PBF

Mfr. Part

LTC2942IDCB#PBF

Manufacturer

LT Linear Technology now part of Analog Devices

Y-IC is a quality distributor for LT and Analog Devices. We focus on genuine parts, fast delivery, and reliable service for every order

Detailed Description

Compact battery gas gauge IC with I2C interface that measures accumulated charge via a sense resistor and also monitors battery voltage and temperature. Designed for single-cell Li-ion and other rechargeable chemistries. Small DFN-6 package fits tight layouts and enables accurate fuel gauging in portable and IoT designs

Key Features

Battery fuel gauge with coulomb counting for accurate charge tracking

I2C two-wire digital interface for easy host control and data readout

Measures battery voltage and temperature in addition to charge

Works over typical portable supply ranges

Low quiescent power for long battery life

Factory-trimmed for consistent measurement performance

DFN-6 footprint for space-limited boards

Key Advantages

Precise charge tracking improves state-of-charge estimation compared to voltage-only methods

Simple integration with microcontrollers via I2C reduces firmware effort

Small package saves PCB area while maintaining measurement accuracy

Low power operation minimizes impact on battery runtime

Proven LT architecture widely used in portable and wearable products

Packaging

Package type DFN-6 leadless

Material molded epoxy over copper leadframe

Nominal size about 2 mm x 3 mm compact low-profile footprint

Pin configuration 6 pins commonly include VCC, GND, SCL, SDA, SENSE plus and SENSE minus consult datasheet package drawing DCB for exact pin names and orientation

Thermal characteristics efficient heat transfer for small-signal ICs use solid ground plane and short traces to the sense resistor for best stability

Electrical properties typical portable supply range and I2C up to standard fast-mode speeds see datasheet for exact limits and timing

Shipment format tape and reel for automated assembly and also available in cut tape for prototypes

Moisture handling follows JEDEC MSL guidelines refer to datasheet for MSL level

Current available stock 7350 units subject to change

Lifecycle

Status active and widely used not near discontinuation as of current update

Equivalent and alternative models

- LTC2941 similar gas gauge option in the same family

- LTC2943 wide operating voltage version for higher system voltages

- LTC2944 enhanced wide-range gas gauge for multi-cell stacks

- MAX17055 ModelGauge m5 fuel gauge alternative under Analog Devices Maxim portfolio for single-cell Li-ion with advanced SOC algorithms

- MAX17043 or MAX17044 simple single-cell fuel gauges in the Analog Devices Maxim line for very low power applications

If you need pin-to-pin or application-specific replacements contact our sales team via the Y-IC website for tailored guidance

Key Application Areas

Smartphones tablets and handheld electronics

Wearables fitness trackers smartwatches

Portable medical devices and health monitoring

Wireless sensors IoT nodes asset trackers

Drones toys robotics and small mobility devices

Power banks and single-cell battery packs

Industrial handheld instruments meters and dataloggers

Datasheet

Y-IC hosts the most authoritative datasheet for LTC2942IDCB#PBF on our product page. For exact specifications pin details and layout guidance download the datasheet now from this page

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