DS2788E+TR

更新时间： 2024-11-01 06:54:39

品牌	Logo	应用领域
美信 - MAXIM		显示驱动器仪表
页数	文件大小	规格书
32页	391K
描述
Stand-Alone Fuel-Gauge IC with LED Display Drivers

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中文翻译

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数据手册

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DS2788E+TR 数据手册

19-4639; Rev 2; 5/09

Stand-Alone Fuel-Gauge IC with

LED Display Drivers

DS278

General Description

Features

The DS2788 measures voltage, temperature, and cur-

rent, and estimates available capacity for rechargeable

lithium-ion (Li+) and Li+ polymer batteries. Cell charac-

teristics and application parameters used in the calcu-

lations are stored in on-chip EEPROM. The available

capacity registers report a conservative estimate of the

amount of charge that can be removed given the cur-

rent temperature, discharge rate, stored charge, and

application parameters. Capacity estimation is reported

in mAh remaining and percentage of full.

♦ Five 30mA Open-Drain Drivers for Driving LED

Fuel-Gauge Display

♦ Debounced Fuel-Gauge Display Enable

♦ Internal Voltage Measurement Gain Register for

Trimming External Voltage-Divider

♦ Pin for Driving FETs to Enable Voltage-Divider

Only During Voltage Measurement, Conserving

Power

LED display drivers and a debounced input make dis-

play of the capacity information easy. The LED pins can

directly sink current, requiring only a resistor for setting

the current in the LED display, thus reducing space and

cost.

♦ Precision Voltage, Temperature, and Current

Measurement System

♦ Accurate, Temperature-Stable, Internal Time Base

♦ Absolute and Relative Capacity Estimated from

Coulomb Count, Discharge Rate, Temperature,

and Battery Cell Characteristics

Applications

Power Tools

♦ Accurate Warning of Low Battery Conditions

Electric Bicycles

Electric Vehicles

Uninterruptible Power Supply

Digital Cameras

♦ Automatic Backup of Coulomb Count and Age

Estimation to Nonvolatile (NV) EEPROM

♦ Gain and Tempco Calibration Allows the Use of

Low-Cost Sense Resistors

♦ 24-Byte Battery/Application Parameter EEPROM

♦ 16-Byte User EEPROM

Pin Configuration

♦ Unique ID and Multidrop 1-Wire Interface

TOP VIEW

♦ 14-Pin TSSOP Package

LED2

LED1

14 LED3

13 LED4

12 LED5

Ordering Information

PART

TEMP RANGE

-25°C to +70°C

PIN-PACKAGE

14 TSSOP

PIO

DS2788E+

DS2788

DS2788E+T&R

14 TSSOP

OVD

+Denotes a lead(Pb)-free/RoHS-compliant package.

T&R = Tape and reel.

SNS

VMA

TSSOP

Typical Operating Circuit appears at end of data sheet.

1-Wire is a registered trademark of Maxim Integrated Products, Inc.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...32

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与DS2788E+TR相关器件

型号	品牌	获取价格	描述	数据表
DS2790	MAXIM	获取价格	Programmable 1-Cell Li-Ion Fuel Gauge and Protector
DS2790E	MAXIM	获取价格	Programmable 1-Cell Li-Ion Fuel Gauge and Protector
DS2790E+	MAXIM	获取价格	Power Supply Management Circuit, Adjustable, 1 Channel, PDSO28, LEAD FREE, TSSOP-28
DS2790E+T&R	MAXIM	获取价格	Power Supply Management Circuit, Adjustable, 1 Channel, PDSO28, LEAD FREE, TSSOP-28
DS2790G	MAXIM	获取价格	Programmable 1-Cell Li-Ion Fuel Gauge and Protector
DS2790G+	MAXIM	获取价格	Power Supply Management Circuit, Adjustable, 1 Channel, 8 X 4 MM, LEAD FREE, TDFN-28
DS2790G+T&R	MAXIM	获取价格	Power Supply Management Circuit, Adjustable, 1 Channel, 8 X 4 MM, LEAD FREE, TDFN-28
DS2792G+	MAXIM	获取价格	Power Supply Management Circuit, Adjustable, 1 Channel, LEAD FREE, TDFN-28
DS2792G+T&R	MAXIM	获取价格	Power Supply Management Circuit, Adjustable, 1 Channel, ROHS COMPLIANT, TDFN-28
DS28	ETC	获取价格	Analog IC

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