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MAXIM INTEGRATED / ANALOG DEVICES DS2786BG Battery Fuel Gauge
The DS2786BG+ is a stand-alone, open-circuit voltage (OCV) based fuel gauge integrated in a 10-pin TDFN package. It accurately estimates the available capacity of rechargeable Li-ion and Li-polymer batteries by analyzing the cell voltage after a relaxation period. The device utilizes an internal lookup table to determine the relative state of charge based on OCV, providing immediate and precise capacity information when a battery pack is inserted. It also incorporates coulomb counting as a secondary method for estimating remaining capacity, which is reported in percentage along with key parameters such as cell voltage, current, and temperature. On-chip EEPROM stores cell characteristics and calculation data. Temperature measurements are obtained via an on-die sensor, and resistance measurements from a pack identification resistor or thermistor are supported through ratiometric assessments on auxiliary inputs. The device operates within a supply voltage range of 2.5V to 4.5V and a temperature range of -20°C to 70°C. Data access is via an I2C interface. It features high-precision measurement capabilities, including 12-bit battery voltage with ±10mV accuracy, 11-bit bidirectional current measurement with a dynamic range of ±51.2mV (1.67mA LSB at ±3.4A), and internal temperature sensing with 0.125°C resolution and ±3°C accuracy. The fuel gauge provides accurate low-battery warnings with low power consumption, making it ideal for smartphones with push-mail features, multimedia devices, portable electronics, and imaging or audio applications.
MAXIM INTEGRATED / ANALOG DEVICES DS2786BG Battery Fuel Gauge Specifications:
- Package: 10-pin TDFN, 3mm x 3mm, with exposed pad
- Supply Voltage Range: 2.5V to 4.5V
- Temperature Range: -20°C to 70°C
- Battery Voltage Measurement: 12-bit, ±10mV accuracy, 0 to 4.999V
- Current Measurement: 11-bit, ±51.2mV dynamic range, resolution 1.67mA, range ±3.4A
- Current Resolution: 25μV per LSB
- Temperature Measurement: On-die sensor, 0.125°C resolution, ±3°C accuracy
- Data Interface: I2C, up to 400kHz
- Power Consumption: Active current 50pA, Sleep current 1pA
- Additional Functions: Resistance measurement via auxiliary inputs, EEPROM storage for cell parameters, and cell modeling
Buy the Maxim DS2786BG – Reliable Fuel Gauge for Industrial Applications
Purchase the Maxim DS2786BG today for accurate battery capacity monitoring in portable devices. Featuring high-precision voltage, current, and temperature measurement, integrated EEPROM for cell modeling, and efficient power consumption, this fuel gauge ensures reliable operation in smartphones, cameras, audio players, and other electronics. Its compact 10-pin TDFN package with exposed pad simplifies integration, providing immediate capacity estimation through open-circuit voltage analysis, supplemented by coulomb counting. Ideal for designers seeking durable, precise solutions for battery management systems in industrial and consumer electronics.
Get Maxim DS2786BG today—built for precision in battery capacity estimation and long-lasting durability in portable electronics.
Frequently Asked Questions
Where can I buy MAXIM INTEGRATED / ANALOG DEVICES DS2786BG?
You can click on the BUY or RFQ button to purchase DS2786BG from an authorized MAXIM INTEGRATED / ANALOG DEVICES distributor.
How do I troubleshoot issues or seek technical support for part DS2786BG?
You can download the DS2786BG datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.
Who is the manufacturer of DS2786BG?
MAXIM INTEGRATED / ANALOG DEVICES