Datasheet > CW2015CHBD

CW2015CHBD

更新时间： 2024-09-21 14:55:07

品牌	Logo	应用领域
赛微 - CELLWISE		/
页数	文件大小	规格书
2页	366K
描述
低电量报警 SOC

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中文翻译

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CW2015CHBD 数据手册

www.cellwise-semi.com

CW2015CHBD-DS V1.3

CW2015CHBD

Fuel Gauge IC with Low-SOC Alert

General Description

Features



System-Side or Pack-Side Fuel Gauging

3% Maximum Total SOC Measurement Error

14-bit Sigma-Delta ADC for Temperature and

Cell Voltage Measurement

The CW2015 is an ultra-compact, host-side/pack-

side, sensing resistor free, fuel gauging system IC

for Lithium-ion(Li+) based batteries in handheld

and portable devices.



Precision Voltage Measurement

No Offset Accumulation During Life Time

No Full-to-Empty Battery Learning Cycles

Necessary

The CW2015 tracks Li+ battery’s operational

condition and uses state-of-art algorithm to report

the relative State-of-Charge (SOC) of very different

battery chemistry systems (LiCoOx, polymer Li-ion,

LiMnOx etc.).



No Sense Resistor Required

SOC and RRT available

The CW2015 includes a 14-bit Sigma-Delta ADC,

a precision voltage reference and build-in accurate

temperature sensor. The IC allows the end-user to

eliminate the expensive sensing resistor which

occupies large board area. And the IC also sends

out the alarm signal if the battery SOC level

reaches pre-programmed threshold.

External Alarm/Interrupt for Low-Battery

Warning Available



Patented “FastCali” gas gauging algorithm

Calibration After Quick Soft-Reset

Ultra Low Power Consumption

• Active mode 15A

Quick start function offers the possibility to make

an initial estimation of the battery’s SOC, which

also enables the IC to be located on system side

or pack side, giving the flexibility to system maker

on pack selection.

• Sleep mode <1A



General I²C interface

Tiny, Lead(Pb)-Free, TDFN-8 Package

Applications

The CW2015 uses a 2-wire I²C compatible serial

interface that operates in standard (100 kHz) or

fast (400 kHz) mode.



Smartphone

Tablet PCs

Handheld and Portable Applications

中文翻译

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