UM809xxP 具有推挽式/RESET输出的3引脚,低功耗微处理器复位电路
功能特点
微处理器监控 电源管理
The UM809xxP series are ultra low current, cost effective system supervisory circuits designed to monitor the power supplies in digital systems. They provide a reset signal to the host processor when necessary, offer excellent circuit reliability & low cost by eliminating external component and adjustment when used with +5V, +3.3V, +3.0V or other voltage powered circuits.
The reset output is driven active within 10 µs of power supply falling through the reset voltage threshold. Reset is keeping active for a minimum of 140ms after system power supply has risen above the reset threshold. Reset threshold suitable for operation with variety of supply voltage are available.
UM809xxP has an active-low reset output and is optimized to reject fast transient glitches on the power supply line, and the reset output is guaranteed to be in the correct logic state for power supply VCC down to 1V.
Each of these ICs consists of a voltage reference comparator, resistors for detector threshold setting, delay generator, output driver & hysteresis circuit. The reset threshold & time delay are fixed with high accuracy internally and does not require any external adjustment.
Low supply current of 3µA (VCC=3V) makes UM809xxP ideal for low power application. The device is available in 3 Pin SOT323 package.
参数指标
- Wide Operation Voltage Range of 1V to 10V
- Typical Quiescent Current of 3μA
- No External Components
- 3-Pin small SOT323 Package
- VCC Transient Immunity
- Correct Logic Output Guaranteed to VCC=1.0V
- Precision VCC Monitor for 2.5V, 3.0V, 3.3V, and 5.0V Supplies
- Push-Pull Low Active Reset Output
- Wide Operation Temperature: -40℃ to 105℃
- UM809xxP Series include :UM809AP、UM809BP、UM809CP、UM809DP、UM809LP、UM809EP、UM809MP、UM809FP、UM809GP、UM809HP、UM809JP、UM809IP、UM809KP、UM809NP、UM809OP、UM809PP、UM809QP、UM809UP、UM809VP、UM809TP、UM809WP、UM809SP、UM809XP、UM809YP、UM809RP、UM809AAP、UM809ABP、UM809ZP、UM809ACP、UM809ADP、UM809AEP
应用领域
- CPU and Logic Circuit Reset
- Power Fail Detector
- Computers
- Embedded System
- Battery-Powered Equipment
- Intelligent Instrument
热搜元器件
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