BQ27441-G1 Texas instruments

BQ27441-G1

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BQ27441-G1

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Описание

The Texas Instruments bq27441-G1 fuel gauge is a microcontroller peripheral that provides system-side fuel gauging for single-cell Li-Ion batteries. The device requires minimal user configuration and system microcontroller firmware development. The bq27441-G1 battery fuel gauge uses the patented Impedance Track™ algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), and battery voltage (mV). Battery fuel gauging with the bq27441-G1 fuel gauge requires connections only to PACK+ (P+) and PACK– (P–) for a removable battery pack or embedded battery circuit. The tiny, 12-pin, 2.50 mm × 4.00 mm, small outline no-lead (SON) package is ideal for space-constrained applications.

Single Series Cell Li-Ion Battery Fuel Gauge
- Resides on System Board
- Supports Embedded or Removable Batteries
- Powered Directly from Battery with Integrated LDO
- Supports a Low-Value External Sense Resistor
  (10 mΩ)
Battery Fuel Gauging Based on Patented Impedance
Track™ Technology
- Reports Remaining Capacity and State-of-Charge
  (SOC) with Smoothing Filter
- Automatically Adjusts for Battery Aging, =
  Self-discharge, Temperature, and Rate Changes
- Battery State-of-Health (Aging) Estimation
Microcontroller Peripheral Supports:
- 400-kHz I²C Serial Interface
- Configurable SOC Interrupt or Battery
  Low Digital Output Warning
- Internal Temperature Sensor or
  Host-Reported Temperature

Cell chemistry	Li-Ion/Li-Polymer
Number of series cells	Single Cell
Communication interface	I2C
Battery capacity (min) (mAh)	200
Battery capacity (max) (mAh)	8000
Implementation	System
External capacity indication	None
Features	Impedance Track™ algorithm
Operating temperature range (°C)	-40 to 85
Rating	Catalog