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参数资料
| 型号： | DS2778G+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 19/46页 |
| 文件大小： | 0K |
| 描述： | IC FUEL GAUGE LI+ 2CELL 14-TDFN |
| 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： | 4 V ~ 9.2 V |
| 工作温度： | -20°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 供应商设备封装： | 14-TDFN-EP（3x5） |
| 包装： | 带卷 (TR) |
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2-Cell, Stand-Alone, Li+ Fuel-Gauge IC with
Protector and Optional SHA-1 Authentication
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
CAPACITY (RARC) %
(R)
CELL MODEL PARAMETERS
(EEPROM)
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 13. Top-Level Algorithm Diagram
Full
The full curve defines how the full point of a given cell
depends on temperature for a given charge termina-
tion. The application ’s charge termination method
should be used to determine the table values. The
DS2775–DS2778 reconstruct the full line from cell char-
acteristic table values to determine the full capacity of
the battery at each temperature. Reconstruction occurs
in one-degree temperature increments.
REMAINING STANDBY-RELATIVE
CAPACITY (RSRC) % (R)
USER MEMORY (EEPROM)
16 BYTES
CYCLE COUNTER (EEPROM)
Active Empty
The active-empty curve defines the variation of the
active-empty point over temperature. The active-empty
point is defined as the minimum voltage required for
system operation at a discharge rate based on a high-
level load current (one that is sustained during a high-
power operating mode). This load current is
programmed as the active-empty current (IAE), and
should be a 3.5s average value to correspond to values
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PDF描述 |
|---|---|
| DS2776G+T&R | IC FUEL GAUGE LI+ 2CELL 14-TDFN |
| MAX1640EEE+T | IC SW-MODE CUR SOURCE ADJ 16QSOP |
| MAX1641EEE+T | IC SW-MODE CUR SOURCE ADJ 16QSOP |
| DS2764BE+025/T&R | IC MON BATT LI-ION HP 16-TSSOP |
| DS2764AE+025/T&R | IC MON BATT LI-ION HP 16-TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2778K | 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 |
| DS2780 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Stand-Alone Fuel Gauge IC |
| DS2780_09 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Standalone Fuel Gauge IC |
| DS2780E | 制造商:Maxim Integrated Products 功能描述:STANDALONG FUELD GAUGE TSSOP - Rail/Tube |
| DS2780E/R | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Stand-Alone Fuel Gauge IC |
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