The CXDR7557 CXDR7557A series are ultra-small delay capacitor adjustable type voltage detectors that have high accuracy and sense pin isolation. High accuracy and a low supply current are achieved by means of a CMOS process, a highly accurate reference power supply, and laser trimming technology. The sense pin is isolated from the power input pin to enable monitoring of the voltage of another power supply. Output can be maintained in the detection state even if the voltage of the power supply that is monitored drops to 0V. The sense pin is also suitable for detecting high voltages, and the detection and release voltage can be set as desired using external resistors. An internal delay circuit is also provided. By connecting a capacitor to the Cd/MRB pin, any release delay time and detect delay time can be set, and the pin can also be used as a manual reset pin
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[ CXDR7557 ]"
CXDR7557
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产品概述 返回TOP
CXDR7557 CXDR7557A系列产品是超小型,高精度,分离传感端子,外接延迟电容式的高精度电压检测器。由于采用了CMOS工艺,高精度基准电源,激光微调技术，实现了高精度,低消耗电流。由于传感端子与电源输入端子分离，可以监控其他电源的电压，即使监控电源的电压降低到0V，也能保持检测输出的状态。此外由于内置了延迟电路，通过为Cd/MRB端子连接了电容，使其能具有任意地解除延迟，检测延迟的功能，还可作为手动复位端子使用。传感端子适用于检测高电压，能用外接电阻任意地设定检测，解除电压。The CXDR7557 CXDR7557A series are ultra-small delay capacitor adjustable type voltage detectors that have high accuracy and sense pin isolation. High accuracy and a low supply current are achieved by means of a CMOS process, a highly accurate reference power supply, and laser trimming technology. The sense pin is isolated from the power input pin to enable monitoring of the voltage of another power supply. Output can be maintained in the detection state even if the voltage of the power supply that is monitored drops to 0V. The sense pin is also suitable for detecting high voltages, and the detection and release voltage can be set as desired using external resistors. An internal delay circuit is also provided. By connecting a capacitor to the Cd/MRB pin, any release delay time and detect delay time can be set, and the pin can also be used as a manual reset pin.
产品特点 返回TOP
应用范围 返回TOP
●Microcontroller reset and malfunction monitoring
●Battery voltage monitoring
●System power-on reset
●Power failure detection
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产品封装图 返回TOP
电路原理图 返回TOP
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单功能电压检测器 |
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产品名称 |
特点 |
封装 |
检测 电压 MIN V |
检测 电压 MAX V |
工作 电压 MIN V |
工作 电压 MAX V |
消耗 电流 |
输出形式 |
温度 范围 (℃) |
检测 电压 精度 (%) |
检测电 压温度 特性 ppm/℃ |
|
μA |
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|
低消耗 电流 |
SOT24 USP3 |
1 |
5 |
0.7 |
6 |
0.5 |
CMOS N-ch open drain |
-40～＋85 |
±2 |
±100 |
|
|
检测电压 高精度 |
SOT24 USPN4B02 |
1.5 |
5.5 |
0.7 |
6 |
0.7 |
CMOS N-ch open drain |
-40～＋85 |
±0.8 |
±50 |
|
|
低检测电 压0.8V |
SOT23 SOT89 SOT24 |
0.8 |
6 |
0.7 |
10 |
0.8 |
CMOS N-ch open drain |
-40～＋85 |
±2 |
±100 |
|
|
低检测电 压0.8V |
USP3 |
0.8 |
6 |
0.7 |
10 |
0.8 |
CMOS N-ch open drain |
-40～＋85 |
±2 |
±100 |
|
|
Assures All Temperature Range |
SOT23 SOT89 |
1.6 |
6 |
0.7 |
10 |
0.8 |
CMOS N-ch open drain |
-40～＋85 |
±2 |
±400 |
|
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电压检测器 延迟时间内部设定 |
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产品名称 |
特点 |
封装 |
检测 电压 MIN V |
检测 电压 MAX V |
工作 电压 MIN V |
工作 电压 MAX V |
消耗 电流 |
输出 形式 |
手动复 位输入 |
解除延 迟时间 (ms) |
检测电 压精度 (%) |
检测电压 温度特性 ppm/℃ |
|
μA |
||||||||||||
|
看门狗+ 手动复位 |
SOT25 USP6C |
1.6 |
5 |
1 |
6 |
8 |
CMOS |
Yes |
3.13 25 50 100 200 400 1600 |
±2 |
±100 |
|
|
看门狗+ 手动复位 |
SOT25 USP6C |
1.6 |
5 |
1 |
6 |
8 |
CMOS N-ch open drain |
Yes |
3.13 25 50 100 200 400 1600 |
±2 |
±100 |
|
|
检测电压, 高精度、 手动复位 |
SOT25 SSOT24 USPN4 |
1.5 |
5.5 |
0.7 |
6 |
0.7 |
CMOS N-ch open drain |
Yes |
50 100 200 400 800 |
±0.8 |
±50 |
|
|
工作电压范围 0.7~10V |
SOT23 SOT89 |
1.6 |
6 |
0.7 |
10 |
1 |
CMOS N-ch open drain |
No |
±2 |
±100 |
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带内置延迟电路 |
SOT23 |
1.6 |
6 |
0.7 |
10 |
1 |
CMOS N-ch open drain |
No |
1 50 80 |
±2 |
±100 |
|
|
电压检测器 延迟时间外部设定 |
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|
产品名称 |
特点 |
封装 |
检测 电压 MIN V |
检测 电压 MAX V |
工作 电压 MIN V |
工作 电压 MAX V |
消耗 电流 |
输出 形式 |
工作 电压 MAX V |
消耗 电流 |
手动 复位 输入 |
检测 电压 精度 |
检测电压温度特性 |
|
μA |
μA |
(%) |
ppm/℃ |
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独立电压检测端子 |
SOT25 USP4 |
0.8 |
5 |
1 |
6 |
0.8*2 |
CMOS N-ch open drain |
6 |
0.8*2 |
No |
±2 |
±100 |
|
|
带外置延迟电容 |
SSOT24 |
0.8 |
5 |
0.7 |
6 |
0.9*1 |
CMOS N-ch open drain |
6 |
0.9*1 |
No |
±2 |
±100 |
|
|
独立电压检测端子 |
SOT25 USP4 |
0.8 |
5 |
1 |
6 |
0.8*2 |
CMOS N-ch open drain |
6 |
0.8*2 |
No |
±2 |
±100 |
|
|
带外置延迟电容 |
SSOT24 USPN4 |
0.8 |
5 |
0.7 |
6 |
0.9*1 |
CMOS N-ch open drain |
6 |
0.9*1 |
No |
±2 |
±100 |
|
|
外接电容延迟式 |
SSOT24 USPN4 |
1.5 |
5.5 |
1.3 |
6 |
0.58*1 |
CMOS N-ch open drain |
6 |
0.58*1 |
Yes |
±0.8 |
±50 |
|
|
浪涌电压保护功能外调滞后宽度 |
SOT26 USP6C |
0.8 |
2 |
1.6 |
6 |
1.43*1 |
CMOS N-ch open drain |
6 |
1.43*1 |
Yes |
±1.2 |
±50 |
|
|
电容延迟式 |
SOT26 USP6C |
1 |
5 |
1.6 |
6 |
1.32*3 |
CMOS N-ch open drain |
6 |
1.32*3 |
Yes |
±1.2 |
±50 |
|
|
外部调整滞后电容延迟式 |
SOT26 USP6C |
0.8 |
5 |
1.6 |
6 |
1.32*3 |
CMOS N-ch open drain |
6 |
1.32*3 |
Yes |
±1.2 |
±50 |
|
|
车载类分离传感端子 外部调整滞后 外接延迟电容式 |
USP6C |
0.8 |
2 |
1.6 |
6 |
1.43*1 |
CMOS N-ch open drain |
6 |
1.43*1 |
Yes |
±1.2 |
±50 |
|
|
车载类分离传感端子 外部调整滞后 外接延迟电容式 |
SOT26 USP6C |
1 |
5 |
1.6 |
6 |
1.32 |
CMOS N-ch open drain |
6 |
1.32 |
Yes |
±1.2 |
±50 |
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