CXDR75111 CXDR75112 are microprocessor (μP) supervisory circuits used to monitor the power supplies in μP and digital systems. High- and Low- voltage thresholds can be adjusted independently, allowing

CXDR75111 CXDR75112 are microprocessor (μP) supervisory circuits used to monitor the power supplies in μP and digital systems. High- and Low- voltage thresholds can be adjusted independently, allowing for wide hysteresis. Voltage detection thresholds are accurate to 2%. These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below the low-voltage threshold, keeping it asserted for at least 140ms after VCC has risen above the high-voltage threshold. The CXDR75112L has an open-drain output stage, while the CXDR75111 have push-pull outputs. The GCXDR75112’s open-drain RESET output requires a pull-up resistor that can be connected to a voltage higher than VCC. The GCXDR75111 have an active-low RESET output, while the GCXDR75111 has an active-high RESET output. The reset comparator is designed to ignore fast transients on threshold input. The IC’s power supply is separate from the detector inputs, allowing the CXDR75111/CXDR75112 to be powered from a down-stream supply. Low supply current (4μA, typical) makes the CXDR75111/CXDR75112 ideal for use in portable equipment. The CXDR75111/CXDR75112 are available in SOT -23-5 packages.

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXDR75111/CXDR75112 are microprocessor (μP) supervisory circuits used to monitor the power supplies in μP and digital systems. High- and Low- voltage thresholds can be adjusted independently, allowing for wide hysteresis. Voltage detection thresholds are accurate to 2%. These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below the low-voltage threshold, keeping it asserted for at least 140ms after VCC has risen above the high-voltage threshold. The CXDR75112L has an open-drain output stage, while the CXDR75111 have push-pull outputs. The GCXDR75112’s open-drain RESET output requires a pull-up resistor that can be connected to a voltage higher than VCC. The GCXDR75111 have an active-low RESET output, while the GCXDR75111 has an active-high RESET output. The reset comparator is designed to ignore fast transients on threshold input. The IC’s power supply is separate from the detector inputs, allowing the CXDR75111/CXDR75112 to be powered from a down-stream supply. Low supply current (4μA, typical) makes the CXDR75111/CXDR75112 ideal for use in portable equipment. The CXDR75111/CXDR75112 are available in SOT -23-5 packages.

   产品特点 返回TOP

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„ ±2.5% Voltage Threshold Accuracy 

„ Independently Adjustable High- and LowVoltage Thresholds 

„ Fully Specified Over Temperature 

„ Available in Three Output Configurations Push-Pull RESET Output (CXDR75111L) Push-Pull RESET Output (CXDR75111H) Open-Drain RESET Output (CXDR75112L) 

„ 140ms min Power-On Reset Pulse Width 

„ 4μA Supply Current 

„ Power Supply Transient Immunity 

„ SOT-23-5 Packages

   应用范围 返回TOP

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„ Computers 

„ Controllers 

„ Intelligent Instruments 

„ Critical μP and μC Power Monitoring 

„ Portable / Battery-Powered Equipment 

„ Automotive

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产品封装图 返回TOP

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电路原理图 返回TOP

 

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Part   NO.	VCC(V min	VCC(V max	Detecting Voltage(V)	Manual	Delay (ms)	VthAcc uracy(%)	Isupply (μA)	Note	Package
CXDR75101 /2	1	5.5	2.93	N	360	--	9	CXDR75101 is a Push-Pull Reset   CXDR75102 is an OpenDrain Reset	SOT23
CXDR75103	1	5.5	3/3.3/5	Y	360	2	10	Push-Pull Active-low RESET Output  Manual Reset Input	SOT143
CXDR75104 /5/6	1.1	5.5	2.25/2.63 2.93/4.55	Y	200	2	10	CXDR75104/5/6 has a watchdog  output CXDR75104/5 has MR#	SOT23-5
CXDR75107	1.1	5.5	2.25/2.63 2.93/4.55	Y	200	2	10	Push-Pull Output,Dual outputs	SOT23-5
CXDR75108 /9	1	5.5	2.6/2.9/3.1 3.3/3.9/4.3	N	2	2	16.5	CXDR75108H/L is a Push-Pull  High/Low Reset CXDR75109L is  an Open-drain Low Reset	SOT23 SC70-3 TO92/SOT89
CXDR75110	1	5.5	2.3/2.5	N	0.06	1.5	3.3	CXDR75110H is an  Open-Drain  High Reset CXDR75110L is an  Open-Drain Low Reset	SC70-4 SC82 SOT343
CXDR75111 /2	2.5	5.5	Individual Set  by Resistor	N	140	2.5	4	CXDR75111H/L is a Push-Pull  High/Low Reset CXDR75112L is  an Open-Drain Low Reset	SOT23-5
CXDR75113 /4	2.7	5.5	Individual Se tby Resistor	Y	200	2	18	CXDR75113H/L is a Push-Pull  High/Low Reset CXDR75114L  is an Open-Drain Low Reset	SOT23-5
CXDR75115 /6	1	5.5	2.63/2.93/ 3.08/4.0/ 4.38/4.63	N	140	2	10	CXDR75115H/L is a Push-Pull  High/Low Reset CXDR75116L  is an Open-Drain Low Reset	SOT23 SC70-3
CXDR75117 /8	1	5.5	2.64/2.91/3.1 3.96/4.32/4.6	Y	230	2	14	CXDR75117H/L is a Push-Pull  High/Low Reset CXDR75118L is an Open-Drain Low Reset	SOT25 SC70-5 SOT143