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参数资料
| 型号： | DS2441 |
| 英文描述： | 1-Cell Li-Ion Battery Manager |
| 中文描述： | 1节锂离子电池管理器 |
| 文件页数： | 11/29页 |
| 文件大小： | 134K |
| 代理商： | DS2441 |
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DS2441
11 of 29
VOLTAGE MEASUREMENT
In its normal mode of operation, the DS2441 continuously measures the voltage of the cell. Voltage
measurements are unsigned and have a 10-bit resolution. Each conversion cycle performs 32 consecutive
voltage samples within 6.9ms (typical). If the AVG bit of the Configuration Register is set to logic 1
(default), the average value of the 32 samples is stored in the Voltage Register. If the AVG bit is set to
logic 0, the minimum value of the 32 samples is stored. This is summarized in Table 6. In Low Power
Mode, the DS2441 suspends voltage measurements.
VOLTAGE CONVERSION CONFIGURATION SETTINGS
Table 6
AVG bit
Result Stored
1
0
Average
Minimum
The Voltage Register has the format shown in Figure 7.
VOLTAGE REGISTER FORMAT
Figure 7
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
LSB
msb
(unit=4.88 mV)
lsb
0
0
0
0
0
0
2
9
2
8
MSB
TEMPERATURE MEASUREMENT
In its normal mode of operation, the DS2441 continuously measures pack temperature. After each
measurement, two’s-complement temperature information is stored in the 8-bit Temperature Register.
The Temperature Register has the format shown in Figure 8. Some example Temperature Register values
are shown in Table 7. In Low Power Mode, the DS2441 suspends temperature measurements.
TEMPERATURE REGISTER FORMAT
Figure 8
S
2
6
2
5
2
4
2
3
2
2
2
1
2
0
msb
(unit = 1
°
C)
lsb
相关PDF资料 |
PDF描述 |
|---|---|
| DS2450 | 1-Wire Quad A/D Converter |
| DS2450S | 1-Wire Quad A/D Converter |
| DS2480 | Serial 1.Wire Line Driver |
| DS2480S | Serial 1.Wire Line Driver |
| DS2490 | USB to 1-Wire Bridge Chip |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2442 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Battery Management |
| DS245 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Octal Bus Transceiver |
| DS2450 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:1-Wire Quad A/D Converter |
| DS2450S | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| DS2450S/T&R | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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