参数资料
| 型号： | ICL7665SCBA-T |
| 厂商： | Intersil |
| 文件页数： | 10/14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
274k Ω
R 21A
V+
+5V
As long as V SET1 is greater than 1.3V, OUT1 is low, but
when V SET1 drops below 1.3V, OUT1 goes high shutting off
the ICL7663S. The OUT2 is used for low battery warning.
+5V
+15V
1.02M Ω
R 21B
R 21
49.9k Ω
R 11
HYST1
V SET1
OUT1
HYST2
V SET2
OUT2
22
M Ω
301
k Ω
-5V
100k Ω
787
k Ω +5V
-15V
1M Ω
When V SET2 is greater than 1.3V, OUT2 is high and the low
battery warning is on. When V SET2 drops below 1.3V, OUT2
is low and the low battery warning goes off. The trip voltage
for low battery warning can be set higher than the trip
voltage for shutdown to give advance low battery warning
before the battery is disconnected.
Power Fail Warning and Power-up/Power-down
Reset
POWER
OK
FIGURE 13. MULTIPLE SUPPLY FAULT MONITOR
Combination Low Battery Warning and Low
Battery Disconnect
When using rechargeable batteries in a system, it is
important to keep the batteries from being over discharged.
The circuit shown in Figure 14 provides a low battery
warning and also disconnects the low battery from the rest of
the system to prevent damage to the battery. The OUT1 is
used to shutdown the ICL7663S when the battery voltage
drops to the value where the load should be disconnected.
Figure 14 shows a power fail warning circuit with
power-up/power-down reset. When the unregulated DC
input is above the trip point, OUT1 is low. When the DC input
drops below the trip point, OUT1 shuts OFF and the power
fail warning goes high. The voltage on the input of the 7805
will continue to provide 5V out at 1A until V IN is less than
7.3V, this circuit will provide a certain amount of warning
before the 5V output begins to drop.
The ICL7665S OUT2 is used to prevent a microprocessor
from writing spurious data to a CMOS battery backup
memory by causing OUT2 to go low when the 7805 5V
output drops below the ICL7665S trip point.
+5V
R 31
V+
R 32
1M Ω
100 Ω
1A
HYST1
HYST2
V+
OUT1
OUT2
+
-
R 21
SET1
ICL7665S
SET2
R 22
V+
ICL7663S
SHUTDOWN
SENSE
V SET
R 11
R 12
GND
OUT1
GND
OUT2
1M Ω
LOW BATTERY SHUTDOWN
LOW BATTERY WARNING
FIGURE 14. LOW BATTERY WARNING AND LOW BATTERY DISCONNECT
10
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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