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参数资料
| 型号： | MAX8211CPA+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/7页 |
| 文件大小： | 0K |
| 描述： | IC V-MONITOR W/PROG DETEC 8-DIP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小 <1 ms |
| 电压 - 阀值： | 可调节/可选择 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-PDIP |
| 包装： | 管件 |
| 产品目录页面： | 1424 (CN2011-ZH PDF) |
Microprocessor Voltage Monitors
with Programmable Voltage Detection
V IN
1.250
1.230
1.210
1.190
R3
48.7k ?
1%
V+
1.170
1.150
1.130
1.110
V+ = 16.5V
V+ = 2V
R2
2.2M ?
1%
HYST
THRESH
MAX8211
OUT
V OUT
(LOW FOR
V IN < 4.5V)
1.090
1.070
1.050
R1
750k ?
1%
GND
-55
-25
25
75
125
T A ( ° C)
Figure 4. MAX8211/MAX8212 Threshold Trip Voltage vs.
Ambient Temperature
Calculate resistor values for Figure 3 as follows:
1) Choose a value for R1. Typical values are in
the 10k ? to 10M ? range.
2) Calculate R2 for the desired upper trip point
Figure 5. MAX8211 Logic-Supply Low-Voltage Detector
Calculate resistor values for Figure 5 as follows:
1) Choose a value for R1. Typical values are in
the 10k ? to 10M ? range.
2) Calculate R2:
(VU ? VTH )
(VL ? VTH )
V U using the formula:
R2 = R1 × = R1 ×
VTH
(VU ? 1.15V)
1.15V
R2 = R1 ×
3) Calculate R3:
VTH
= R1 ×
(VL ? 1.15V)
1.15V
3) Calculate R3 for the desired amount of
hysteresis, where V L is the lower trip point:
R3 = R1 ×
(VU ? VL )
1.15V
R3 = R2 ×
(V + ? VTH )
(VU ? VL )
= R2 ×
(V + ? 1.15V)
(VU ? VL )
Low-Voltage Detector for Logic Supply
The circuit of Figure 5 will detect when a 5.0V (nominal)
(VL ? VTH )
(VU ? VL )
or, if V+ = V IN :
R3 = R2 ×
= R2 ×
(VL ? 1.15V)
(VU ? VL )
supply goes below 4.5V, which is the V MIN normally
specified in logic systems. The selected resistor values
ensure that false undervoltage alarms will not be gener-
ated, even with worst-case threshold trip values and
Figure 5 shows an alternate circuit, suitable only when the
voltage being detected is also the power-supply voltage
for the MAX8211 or MAX8212.
resistor tolerances. R3 provides approximately 75mV of
hysteresis.
________________________________________________________________________________________
5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8211CPA+ | 功能描述:监控电路 MPU Voltage Monitor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX8211CPA-2 | 制造商:Maxim Integrated Products 功能描述:IC,CMOS,MICROPOWER VOLTAGE DETECTOR - Rail/Tube 制造商:Maxim Integrated Products 功能描述:IC MICROPOWER SENSOR 8211 DIP8 |
| MAX8211CSA | 功能描述:监控电路 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX8211CSA+ | 功能描述:电压监测器/监控器 MPU Voltage Monitor RoHS:否 制造商:Texas Instruments 监测电压数:2 监测电压:Adjustable 输出类型:Open Drain 欠电压阈值: 过电压阈值: 准确性:1 % 工作电源电压:1.5 V to 6.5 V 工作电源电流:1.8 uA 最大工作温度:+ 125 C 封装 / 箱体:SON-6 安装风格:SMD/SMT |
| MAX8211CSA+T | 功能描述:监控电路 MPU Voltage Monitor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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