DS2786G+ - Maxim Integrated

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

DS2786G+
Manufacturer

Maxim Integrated
ChipWorker Part#

CW19098142
Category

Battery Management IC
Package

TDFN-10
Description

MAXIM INTEGRATED PRODUCTS DS2786G+ Li-Ion, Li-Pol Battery Fuel Gauge IC, 2.5V to 4.5V supply, Serial interface, TDFN-10
Documentation

Datasheet

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DS2786G+ Specifications

Attribute	Attribute Value

Part Number	DS2786G+
Manufacturer	Maxim Integrated
ChipWorker Part#	CW19098142
Category	Battery Management IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	10 Pin
Case/Package	TDFN-10
Supply Voltage (DC)	2.50V (min)
Number of Positions	10 Position
Output Voltage (Max)	4 V
Output Voltage (Min)	2 V
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	-20 ℃
Supply Voltage	2.5V ~ 5.5V
Supply Voltage (Max)	4.5 V
Supply Voltage (Min)	2.5 V
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Size-Length	3.1 mm
Size-Width	3.1 mm
Size-Height	0.75 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Each
RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product Description

The DS2786G+ is a stand-alone OCV based fuel gauge in 10 pin TDFN package. This device estimates available capacity for rechargeable Li-ion (Li+) and Li+ polymer batteries based on the cell voltage in the open-circuit state following a relaxation period. The open-circuit voltage (OCV) is used to determine relative cell capacity based on a lookup table stored in the IC. This capability makes accurate capacity information available immediately after a battery pack is inserted. The DS2786B uses coulomb counting as a secondary means of estimating relative capacity, remaining capacity is reported in percent along with cell voltage, current and temperature information. Cell characteristics and calculations are stored in on-chip EEPROM. Temperature data is available from an on-die sensor, resistance measurements of a pack identification resistor and pack thermistor are supported by ratiometric measurements on two auxiliary inputs.
Supply voltage range is 2.5V to 4.5V
Operating temperature range from -20°C to 70°C
Measurement and estimated capacity data are accessed through an I2C interface
Relative capacity calculated from coulomb counter and open-circuit cell voltage (OCV) battery model
Accurate warning on low battery conditions, low power consumption
12bit battery voltage measurement with ±10mV accuracy, 1.22mV LSB (0V to 4.5V) input range
11bit bidirectional current measurement with 25µV LSB ±51.2mV dynamic range, 1.67mA LSB at ±3.4A
Current accumulation measurement resolution ±204.8mVh and ±13.65Ah (RSNS = 15mohm) range
Internal temperature measurement of 0.125°C LSB, ±3°C accuracy

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