DS2786BG+

更新时间： 2024-11-01 12:49:59

品牌	Logo	应用领域
美信 - MAXIM		电源电路电源管理电路光电二极管仪表
页数	文件大小	规格书
21页	369K
描述
Stand-Alone OCV-Based Fuel Gauge

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技术参数
数据手册
替代型号

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DS2786BG+ 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	DFN
包装说明：	HVSON, SOLCC10,.12,20	针数：	10
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	6 weeks
风险等级：	1.36	Is Samacsys：	N
可调阈值：	YES	模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：	S-PDSO-N10	长度：	3 mm
信道数量：	1	功能数量：	1
端子数量：	10	最高工作温度：	70 °C
最低工作温度：	-20 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	HVSON	封装等效代码：	SOLCC10,.12,20
封装形状：	SQUARE	封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	NOT SPECIFIED	电源：	3/5 V
认证状态：	Not Qualified	座面最大高度：	0.8 mm
子类别：	Power Management Circuits	最大供电电流 (Isup)：	0.08 mA
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	2.5 V
标称供电电压 (Vsup)：	3.6 V	表面贴装：	YES
温度等级：	OTHER	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	3 mm
Base Number Matches：	1

DS2786BG+ 数据手册

19-5223; Rev 1; 4/10

Stand-Alone OCV-Based Fuel Gauge

DS2786B

General Description

Features

♦ Relative Capacity Calculated from Combination

Coulomb Counter and Open-Circuit Cell Voltage

(OCV) Battery Model

The DS2786B estimates available capacity for recharge-

able Li-ion (Li+) and Li+ polymer batteries based on the

cell voltage in the open-circuit state following a relax-

ation 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. During periods of moderate to high rate dis-

charging, which preclude OCV measurements, the

DS2786B uses coulomb counting as a secondary

means of estimating relative capacity.

♦ Accurate Warning of Low-Battery Conditions

Even on First Cycle (No Learn Cycle Needed)

♦ 12-Bit Battery Voltage Measurement

±1ꢀmV Accuracy

1.22mV LSB, ꢀV to 4.5V Input Range

♦ 11-Bit Bidirectional Current Measurement

25µV LSB, ±51.2mV ꢁynamic Range

1.67mA LSB, ±±.4A (R

= 15mΩ)

SNS

Remaining capacity is reported in percent, along with

cell voltage, current, and temperature information. Cell

characteristics and application parameters used in the

calculations are stored in on-chip EEPROM.

♦ Current Accumulation Measurement Resolution

±2ꢀ4.ꢂmVꢃ Range

±1±.65Aꢃ (R

= 15mΩ)

SNS

♦ Internal Temperature Measurement

ꢀ.125°C LSB, ±±°C Accuracy

The DS2786B is intended for use on the host side of

portable devices, though it can also be mounted within a

battery pack. Measurement and estimated capacity data

are accessed through an I²C interface. Temperature

data is available from an on-die sensor. Resistance mea-

surements of a pack identification resistor and pack ther-

mistor are supported by ratiometric measurements on

two auxiliary inputs.

♦ Two 11-Bit Auxiliary Input-Voltage Measurements

±ꢂ LSB Accuracy, Ratiometric Inputs Eliminate

Supply Accuracy Issues

♦ V

Pin ꢁrives Resistive ꢁividers, Reduces

OUT

Current Consumption

♦ 2-Wire Interface

♦ Low Power Consumption

The DS2786B comes in a 10-pin, lead-free, TDFN 3mm

x 3mm package with an exposed pad (EP).

Active Current: 5ꢀµA (typ), ꢂꢀµA (max)

Sleep Current: 1µA (typ), ±µA (max)

Ordering Information

Applications

3G Multimedia Wireless Handsets

PART

DS2786BG+

TEMP RANGE

-20°C to +70°C

PIN-PACKAGE

10 TDFN-EP*

Digital Still Cameras

Digital Audio (MP3) Players

DS2786BG+T&R

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

*EP = Exposed pad.

T&R = Tape and reel.

Operating Diagram

SYSTEM

μP

OUT

DS2786B

Li+

I C

INTERFACE

SDA

SCL

SNS

AIN0

AIN1

PROTECTION

CIRCUIT

SNS

(EEPROM PROGRAMMING TEST POINT NOT SHOWN)

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim ꢁirect at 1-ꢂꢂꢂ-629-4642,

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

12 3 4 5 6 7...21

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DS2786BG+ 替代型号

型号	品牌	替代类型	描述	数据表
DS2786BG+T&R	MAXIM	完全替代	Power Supply Support Circuit, Adjustable, 1 Channel, PDSO10, 3 X 3 MM, ROHS COMPLIANT, TDF

与DS2786BG+相关器件

型号	品牌	获取价格	描述	数据表
DS2786BG+T&R	MAXIM	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, PDSO10, 3 X 3 MM, ROHS COMPLIANT, TDF
DS2786BG+TR	MAXIM	获取价格	Stand-Alone OCV-Based Fuel Gauge
DS2786BK	MAXIM	获取价格	Power Supply Support Circuit
DS2786G+	MAXIM	获取价格	Standalone OCV-Based Fuel Gauge
DS2786G+T&R	MAXIM	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, 3 X 3 MM, LEAD FREE, TDFN-10
DS2786G+T&R	MAXIM	获取价格	Standalone OCV-Based Fuel Gauge
DS2786G+TR	MAXIM	获取价格	Stand-Alone OCV-Based Fuel Gauge
DS2788	MAXIM	获取价格	Stand-Alone Fuel-Gauge IC with LED Display Drivers
DS2788	ADI	获取价格	独立式电量计IC，提供LED显示驱动器
DS2788_09	MAXIM	获取价格	Stand-Alone Fuel-Gauge IC with LED Display Drivers

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