MAX17048G+T10 电池管理 MAXIM

MAX17048G+T10

3μA 1-Cell/2-Cell Fuel Gauge with ModelGauge

电池管理 Host-Side Modelgauge (1-Cell)

MAX17048G+T10 General Description

The MAX17048/MAX17049 ICs are tiny, micropower current fuel gauges for lithium-ion (Li+) batteries in handheld and portable equipment. The MAX17048 operates with a single lithium cell and the MAX17049 with two lithium cells in series.

MAX17048G+T10 Applications

● Smartphones, Tablets

● Smartwatches, Wearables

● Bluetooth Headsets

● Health and Fitness Monitors

● Digital Still, Video, and Action Cameras

● Medical Devices

● Handheld Computers and Terminals

● Wireless Speakers

● Home and Building Automation, Sensors

MAX17048G+T10 Features and Benefits

● MAX17048: 1 Cell, MAX17049: 2 Cells

● Precision ±7.5mV/Cell Voltage Measurement

● ModelGauge Algorithm

• Provides Accurate State-of-Charge

• Compensates for Temperature/Load Variation

• Does Not Accumulate Errors, Unlike Coulomb

Counters

• Eliminates Learning

• Eliminates Current-Sense Resistor

● Ultra-Low Quiescent Current

• 3μA Hibernate, 23μA Active

• Fuel Gauges in Hibernate Mode

• Automatically Enters and Exits Hibernate Mode

● Reports Charge and Discharge Rate

● Battery-Insertion Debounce

• Best of 16 Samples to Estimate Initial SOC

● Programmable Reset for Battery Swap

• 2.28V to 3.48V Range

● Configurable Alert Indicator

• Low SOC

• 1% Change in SOC

• Battery Undervoltage/Overvoltage

• VRESET Alert

● I2C Interface

● 8-Bit OTP ID Register (Contact Factory)