- 您现在的位置：买卖IC网 > PDF目录1788 > DS2788E+T&R (Maxim Integrated Products)IC FUEL GAUGE W/DSP DRV 14TSSOP PDF资料下载
参数资料
| 型号： | DS2788E+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/32页 |
| 文件大小： | 0K |
| 描述： | IC FUEL GAUGE W/DSP DRV 14TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 燃料，电量检测计/监控器 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 电源电压： | 2.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 14-TSSOP |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页当前第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页
Stand-Alone Fuel-Gauge IC with
LED Display Drivers
Capacity Estimation Algorithm
Remaining capacity estimation uses real-time mea-
sured values and stored parameters describing the cell
characteristics and application operating limits. Figure
11 describes the algorithm inputs and outputs.
Modeling Cell Stack
Characteristics
To achieve reasonable accuracy in estimating remain-
ing capacity, the cell stack performance characteristics
over temperature, load current, and charge termination
point must be considered. Since the behavior of Li+
cells is nonlinear, these characteristics must be includ-
ed in the capacity estimation to achieve an acceptable
level of accuracy in the capacity estimation. The
FuelPack? method used in the DS2788 is described in
general in Application Note 131: Lithium-Ion Cell Fuel
Gauging with Maxim Battery Monitor ICs. To facilitate
efficient implementation in hardware, a modified ver-
sion of the method outlined in AN131 is used to store
cell characteristics in the DS2788. Full and empty
points are retrieved in a lookup process that retraces
piece-wise linear model consisting of three curves
VOLTAGE
TEMPERATURE
(R)
(R)
FULL
ACTIVE EMPTY
FULL(T)
AE(T)
(R)
(R)
CAPACITY LOOKUP
CURRENT
ACCUMULATED
(R)
AVAILABLE CAPACITY CALCULATION
ACR HOUSEKEEPING
STANDBY EMPTY SE(T)
REMAINING ACTIVE ABSOLUTE
(R)
CURRENT (ACR) (RW)
AGE ESTIMATOR
CAPACITY (RAAC) mAh (R)
REMAINING STANDBY ABSOLUTE
AVERAGE CURRENT
(R)
LEARN FUNCTION
CAPACITY (RSAC) mAh (R)
REMAINING ACTIVE RELATIVE
CELL PARAMETERS
CAPACITY (RARC) %
(R)
16 BYTES
(EEPROM)
REMAINING STANDBY RELATIVE
CAPACITY (RSRC) % (R)
AGING CAPACITY (AC)
(2 BYTES EE)
AGE SCALAR (AS)
(1-BYTE EE)
SENSE RESISTOR PRIME (RSNSP)
(1 -BYTE EE)
CHARGE VOLTAGE (VCHG)
(1-BYTE EE)
MINIMUM CHARGE CURRENT (IMIN)
(1-BYTE EE)
ACTIVE EMPTY VOLTAGE (VAE)
(1-BYTE EE)
ACTIVE EMPTY CURRENT (IAE)
(1-BYTE EE)
Figure 11. Top Level Algorithm Diagram
FuelPack is a trademark of Maxim Integrated Products, Inc.
12
______________________________________________________________________________________
相关PDF资料 |
PDF描述 |
|---|---|
| DS2790G+T&R | IC FUEL GAUGE BATT 28-TDFN |
| DS3881E+T&R | IC CCFL CONTROL 24TSSOP |
| DS3882E+T&R | IC CCFL CNTRLR DUAL 28TSSOP |
| DS3984T+ | IC CCFL CNTRLR 4CH 32-TQFP |
| DS3988T+ | IC CCFL CNTRLR 8CH 48TQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2788EVKIT+ | 功能描述:电源管理IC开发工具 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| DS2788K | 功能描述:电源管理IC开发工具 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| DS2790 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Programmable 1-Cell Li-Ion Fuel Gauge and Protector |
| DS2790E | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Programmable 1-Cell Li-Ion Fuel Gauge and Protector |
| DS2790E+ | 功能描述:IC FUEL GAUGE BATT 28TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:1 系列:- 功能:充电管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:3.75 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:剪切带 (CT) 产品目录页面:669 (CN2011-ZH PDF) 其它名称:MCP73831T-2ACI/OTCT |
发布紧急采购，3分钟左右您将得到回复。