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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： | 17/29页 |
| 文件大小： | 134K |
| 代理商： | DS2441 |
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DS2441
17 of 29
DELAY TIMING REGISTER
The Delay Timing Register provides a means to configure each of the protection delay times—t
REL
, t
OVD
,
t
UVD
, and t
OCD
—to one of four values, allowing the DS2441 to be fine-tuned for its application
environment. The format of the register is shown in Figure 13. The standard default value loaded from
laser ROM during power-on reset is 00h. Contact the factory for a different default value. See the
Lithium-Ion Protection section above for more details on these timing values.
DELAY TIMING REGISTER FORMAT
Figure 13
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
REL
OVD
UVD
OCD
REL
- t
REL
timing. This field indicates one of four settings for t
REL
, the length of time that charging and
discharging are disabled following the detection of overcurrent conditions. See Table 8 for REL values
and corresponding t
REL
timing.
OVD
- t
OVD
timing. This field indicates one of four settings for t
OVD
, the delay time during which the
voltage of the cell must remain above overvoltage threshold V
OV
before charging is disabled due to an
overvoltage condition. See Table 8 for OVD values and corresponding t
OVD
timing.
UVD
- t
UVD
timing. This field indicates one of four settings for t
UVD
, the delay time during which the
voltage of the cell must remain below undervoltage threshold V
UV
before the DS2441 disables charging
and discharging and enters Low Power Mode. See Table 9 for UVD values and corresponding t
UVD
timing.
OCD
- t
OCD
timing. This field indicates one of four settings for t
OCD
, the delay time during which pack
current must be too high (V
ISENS
> V
OC
for discharge or V
ISENS
< -V
OC
for charge) before charging or
discharging is disabled due to an overcurrent condition. See Table 10 for OCD values and corresponding
t
OCD
timing.
REL AND OVD SETTINGS
Table 8
t
REL
, t
OVD
(ms)
Typ
512
1024
2048
4096
REL,
OVD
00
01
10
11
Min
384
768
1536
3072
Max
640
1280
2560
5120
UVD SETTINGS
Table 9
t
UVD
(ms)
Typ
32
64
128
256
UVD
00
01
10
11
Min
24
48
96
192
Max
40
80
160
320
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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