CXDR75124/CXDR75125These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold or manual reset is triggered, and keeping it a

   产品概述 返回TOPhdk嘉泰姆

These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold or manual reset is triggered, and keeping it asserted for time delay determined by adjustable time delay generator (CD pin) after VCC has risen above the reset threshold or manual reset is released. Reset thresholds suitable for operation with a variety of supply voltages are available. Manual reset is generated after pull low MR pin lastingly over deglitch time delay set by capacitor connected in MRDLY pin. The CXDR75125L has an open-drain output stage, while the CXDR75124 have push-pull outputs. The CXDR75125’s open-drain RESET output requires a pull-up resistor that can be connected to a voltage higher than VCC. 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 CXDR75124/CXDR75125 ideal for use in portable equipment. The CXDR75124/CXDR75125 are available in 6-pin SOT-23-6 and ADFN1.5X1.5-6 packages.The CXDR75124/CXDR75125 are microprocessor (μP) supervisory circuits used to monitor the power supplies in μP and digital systems. They provide excellent circuit reliability and low cost and adjustments when used with +5V, +3.3V, +3.0V- powered circuits.

   产品特点 返回TOPhdk嘉泰姆

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

„ Fully Specified Over Temperature hdk嘉泰姆

„ Available in Two Output Configurations Push-Pull RESET Output (CXDR75124L) Open-Drain RESET Output (CXDR75125L) hdk嘉泰姆

„ Adjustable Reset Delay Time hdk嘉泰姆

„ Manual Reset Input with Adjustable Manual Re set Deglitch Time hdk嘉泰姆

„ 14μA Supply Current hdk嘉泰姆

„ Guaranteed Reset Valid to VCC = 1V „ Power Supply Transient Immunity hdk嘉泰姆

„ 6 pin SOT-23-6 and ADFN1.5X1.5-6 Packages hdk嘉泰姆

„ 2% Threshold Accuracyhdk嘉泰姆

   应用范围 返回TOPhdk嘉泰姆

„ Computers hdk嘉泰姆

„ Controllers hdk嘉泰姆

„ Intelligent Instruments hdk嘉泰姆

„ Critical μP and μC Power Monitoring hdk嘉泰姆

„ Portable / Battery-Powered Equipment hdk嘉泰姆

„ Automotivehdk嘉泰姆

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