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ANALOG DEVICES DS2786G+T&R

Li-Ion, Li-Pol Battery Fuel Gauge IC, 2.5 V to 4.5 V supply, Serial interface, TDFN-10

ANALOG DEVICES DS2786G+T&R
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Manufacturer Part No:
DS2786G+T&R
Order Code:
2517242RL
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Technical Datasheet:
DS2786G+T&R   Datasheet
ECAD / MCAD
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Product Overview

The DS2786G+T&R 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

Applications

Multimedia, Portable Devices, Imaging, Video & Vision, Audio

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Product Information

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:
TDFN

:
Serial

:
Serial

:
-20°C

:
70°C

:
MSL 1 - Unlimited

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Technical Documents (1)

Packaging type Re-reel
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962 total stock globally Need more?

962 UK stock available for 3-5 business days delivery

Due to market conditions delivery times are for general guidance only and may be subject to change at short notice

$5.96 ( $6.56  Inc. GST)

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