参数资料
| 型号： | ICL7665SCBA-T |
| 厂商： | Intersil |
| 文件页数： | 11/14页 |
| 文件大小： | 0K |
| 描述： | IC VOLT DETECTOR OVER/UND 8-SOIC |
| 标准包装： | 2,500 |
| 类型： | 多压监控器 |
| 监视电压数目： | 2 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 高有效 |
| 电压 - 阀值： | 可调节/可选择 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
ICL7665S
UNREGULATED
7805
DC INPUT
4700 μ F
5V REGULATOR
470 μ F
BACKUP
BATTERY
V+
HYST1
HYST2
5.86k Ω
ICL7665S
22M Ω
715k Ω
130k Ω
V SET1
OUT1
V SET2
OUT2
1M Ω
2.2M Ω
1M Ω
RESET OR
WRITE
ENABLE
1M Ω
POWER
FAIL
WARNING
FIGURE 15. POWER FAIL WARNING AND POWERUP/POWERDOWN RESET
Simple High/Low Temperature Alarm
Figure 16 illustrates a simple high/low temperature alarm
which uses the ICL7665S with an NPN transistor. The
voltage at the top of R 1 is determined by the V BE of the
transistor and the position of R 1 ’s wiper arm. This voltage
has a negative temperature coefficient. R 1 is adjusted so
that V SET2 equals 1.3V when the NPN transistor ’s
temperature reaches the temperature selected for the high
temperature alarm. When this occurs, OUT2 goes low. R 2 is
adjusted so that V SET1 equals 1.3V when the NPN
transistor ’s temperature reaches the temperature selected
for the low temperature alarm. When the temperature drops
below this limit, OUT1 goes low.
11
AC Power Fail and Brownout Detector
Figure 17 shows a circuit that detects AC undervoltage by
monitoring the secondary side of the transformer. The
capacitor, C 1 , is charged through R 1 when OUT1 is OFF.
With a normal 100 VAC input to the transformer, OUT1 will
discharge C 1 once every cycle, approximately every 16.7ms.
When the AC input voltage is reduced, OUT1 will stay OFF,
so that C 1 does not discharge. When the voltage on C 1
reaches 1.3V, OUT2 turns OFF and the power fail warning
goes high. The time constant, R 1 C 1 , is chosen such that it
takes longer than 16.7ms to charge C 1 1.3V.
FN3182.9
July 22, 2013
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICL7665SCBAZ | 功能描述:电压监测器/监控器 CMOS OVER/UNDERV DETCETOR 8 COM 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 |
| ICL7665SCBAZA | 功能描述:电压监测器/监控器 W/ANNEAL CMOS OVER/ UNDER V DETECTOR 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 |
| ICL7665SCBAZA-T | 功能描述:电压监测器/监控器 W/ANNEAL CMOS OVER/ UNDER V DETECTOR 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 |
| ICL7665SCBAZ-T | 功能描述:电压监测器/监控器 CMOS OVER/UNDER V DETECTOR 8 COIC COM 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 |
| ICL7665SCPA | 功能描述:电压监测器/监控器 CMOS OVER/UNDER V DETECTOR COM 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 |
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