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| 型号： | MAX11081GUU/V+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/29页 |
| 文件大小： | 0K |
| 描述： | IC FAULT MON BATT 12CH 38TSSOP |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 功能： | 电池监控器 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 6 V ~ 72 V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 38-TFSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 38-TSSOP |
| 包装： | 管件 |
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12-Channel, High-Voltage
Battery-Pack Fault Monitors
event. Figure 8 summarizes the C DLY circuit.
Once the ALRM L pin is forced high due to an alarm
(+2.4V minimum as referred to AGND), it transitions
back to a heartbeat signal only after all battery cells
meet the following condition:
(V OV - V HYS ) > V CELL(ALL) > (V UV + V HYS )
Examples of cell-voltage readings and their effect on
the alarm status are shown in Figures 9 and 10 for sin-
gle- and multiple-cell systems. In the case where an
upper module is forwarding an active alarm condition
down the daisy-chain, that condition continues to be
propagated toward the host regardless of the alarm
state of any lower module. Furthermore, to circumvent
the possibility of a short-circuited capacitor connected
to CD preempting the fault-time validation process, a
redundant built-in delay of 4s nominal is asserted as a
backup. If the V CD threshold is not reached within 4s of
an out-of-range event, the alarm becomes active.
Programmable Delay Time
The alarm trigger delay time is calculated according to
the following equations:
t DLY = (V CD x C DLY )/I CD
Table 1. Overvoltage Threshold Selection
C DLY = (t DLY x I CD )/V CD
The effective I CD value of the current source is 6.1μA
typical and the threshold voltage, V CD, is 1.23V typical.
The V CD threshold is specified at an internal node prior
to the resistor in series with the CD pin as shown in
Figure 8. The threshold voltage seen at the pin is
approximately 1.18V due to the drop associated with
the typical I CD value and the 6k ? resistor. The
MAX11080/MAX11081 can operate with capacitor val-
ues from 15nF (3.0ms) to 16.5μF (3.32s). Each capaci-
tor should have a voltage tolerance of 5V minimum.
Cell-Voltage Threshold Selection
The overvoltage and undervoltage threshold selection
is configured through the OVSEL_ and UVSEL_ inputs.
The overvoltage selection can be configured from 3.3V
to 4.8V in 100mV increments. The undervoltage thresh-
old can be configured from 1.6V to 2.8V in 200mV
increments. The undervoltage detection can also be
disabled. See Tables 1 and 2 for the proper configura-
tion settings.
Immunity to unintended changes in the threshold volt-
age setting (due to accidental pin-to-pin short circuits,
for example) is provided. The customer-programmed
THRESHOLD (V)
OVSEL3
OVERVOLTAGE SELECTION
OVSEL2 OVSEL1
OVSEL0
3.3
3.4
3.5
3.6
3.7
3.8
3.9
4.0
4.1
4.2
4.3
4.4
4.5
4.6
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4.8
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
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1
1
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1
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0
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0
1
0
1
0
1
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1
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1
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1
0
1
0
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX11081IUU+ | 功能描述:电池管理 12 Ch Hi Volt Batt Pack Fault Monitor RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX11081IUU+T | 制造商:Maxim Integrated Products 功能描述:MAX11081 12-CHANNEL, HIGH-VOLTAGE BATTERY-PACK FAULT MONITOR - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC FAULT MON BATT 12CH 38TSSOP 制造商:Maxim Integrated Products 功能描述:12Ch Hi-Vtg Batt-Pk Fault Monitors |
| MAX1108CUB | 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 |
| MAX1108CUB+ | 功能描述:模数转换器 - ADC 2Ch Single-Supply Low-P Serial 8-Bit 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 |
| MAX1108CUB+T | 功能描述:模数转换器 - ADC 2Ch Single-Supply Low-P Serial 8-Bit 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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