产品概述 返回TOPGdO嘉泰姆

The CXDR75117/CXDR75118 are microprocessor (μP) supervisory circuits used to monitor the power supplies in μP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V- powered circuits. The CXDR75117/CXDR75118 also provides a debounced manual reset input. These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 230ms after VCC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. The CXDR75118L has an open-drain output stage, while the CXDR75117 have push-pull outputs. The CXDR75118’s open-drain RESET output requires a pull-up resistor that can be connected to a voltage higher than VCC. The CXDR75117 have an active-low RESET output, while the CXDR75117 has an active-high RESET output. The reset comparator is designed to ignore fast transients on VCC, and the outputs are guaranteed to be in the correct logic state for VCC down to 1V. Low supply current makes the CXDR75117/CXDR75118 ideal for use in portable equipment. The CXDR75117/CXDR75118 are available in a SOT-143, SC-70-5(SOT-353), SOT-23-5 packages

   产品特点 返回TOPGdO嘉泰姆

„ Precision Monitoring of +3V, +3.3V, and +5V Power-Supply Voltages GdO嘉泰姆

„ Fully Specified Over Temperature GdO嘉泰姆

„ Available in Three Output Configurations Push-Pull RESET Output (CXDR75117L) Push-Pull RESET Output (CXDR75117H) Open-Drain RESET Output (CXDR75118L) GdO嘉泰姆

„ 230ms Min Power-On Reset Pulse Width GdO嘉泰姆

„ 14μA Supply Current GdO嘉泰姆

„ Guaranteed Reset Valid to VCC = +1V GdO嘉泰姆

„ Power Supply Transient Immunity GdO嘉泰姆

„ No External Components GdO嘉泰姆

„ Manual Reset Input GdO嘉泰姆

„ SOT-143, SC-70-5(SOT-353) and SOT-23-5 Package GdO嘉泰姆

„ 2% Threshold AccuracyGdO嘉泰姆

   应用范围 返回TOPGdO嘉泰姆

„ Computers GdO嘉泰姆

„ Controllers GdO嘉泰姆

„ Intelligent Instruments GdO嘉泰姆

„ Critical μP and μC Power Monitoring GdO嘉泰姆

„ Portable / Battery-Powered Equipment GdO嘉泰姆

„ AutomotiveGdO嘉泰姆

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