Shanghai Yinglian Electronic Technology Co., Ltd. was established in 2001 and is a fabless integrated circuit design company. The company is committed to the research, development, design and sales of high-performance linear and mixed-signal integrated circuits, and its products are used in various electronic devices. The products of Shanghai Yinglian Electronic Technology Co., Ltd. bridge the analog world and the digital world by detecting, measuring, amplifying, converting power and providing circuit protection.
UM809xxP 3-pin, low-power microprocessor reset circuit with push-pull/RESET output
Features
Microprocessor Supervisory Power Management
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.
Parameters
- 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
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