Voltage Supervisors | CAT809
电压监督，推拉，有效低电平
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概览
CAT809 是一款 µP 监督电路，监控数字系统中的电源。CAT809 可在基于工业温度范围运行的应用中直接替代 MAX809。此器件会产生重置信号，当电源电压降至阈值阈值以下且电源升至该水平 140 ms 之后发出该信号。安森美半导体使用的底层浮动门极技术 AE²™ 可用于提供任何定制重置阈值。提供七个行业标准阈值以支持 +5.0 V、+3.3 V、+3.0 V 和 +2.5 V 系统。CAT809 具有推拉重置输出（有效低电平），CAT810 则具有推来重置输出（有效高电平）。电源上的快速瞬变将被忽略，在低至 1.0 V 的 Vcc 水平下都可保证输出状态正确。CAT809 采用 3 引脚 SOT-23 和 SC70 封装。
- Computers
- Servers
- Laptops
- Cable modems
- Wireless communications
- Embedded control systems
- White goods
- Power meters
- Intelligent instruments
- PDAs and handheld equipment
- Precision monitoring of
+5.0V (-5%, -10%, -20%),
+3.3V (-5%, -10%),
+3.0V (-10%) and
+2.5V (-5%) power supplies - Offered in three output configurations:
- CAT809: Push-Pull Active LOW reset - Direct replacements for the MAX809 in applications operating over the industrial temperature range
- Reset valid down to VCC = 1.0 V
- 6 μA power supply current
- Power supply transient immunity
- Industrial temperature range: -40˚C to +85˚C
- Available in RoHS-compliant SOT-23 and SC70 packages
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