CXDR75101 CXDR75102微处理器监控电路监控数字系统中的电源开漏输出级可靠性和低成本5V 3.3V 3.0V供电用于便携式设备

CXDR75101 CXDR75102是微处理器（μP）监控电路，用于监控μP和数字系统中的电源。当与+5V，+3.3V，+3.0V供电的电路一起使用时，通过消除外部元件和调整，它们提供了卓越的电路可靠性和低成本。这些电路执行单一功能：每当VCC电源电压下降到预设阈值以下时，它们就断言一个重置信号，在VCC上升到重置阈值以上后，将其保持至少220ms。适用于各种电源电压操作的重置阈值可用。CXDR75102具有开漏输出级，而CXDR75101具有推拉输出。CXDR75102s开漏复位输出需要一个上拉电阻器，该电阻器可以连接到高于VCC的电压。CXDR75101具有有效的低复位输出。复位比较器被设计成忽略VCC上的快速瞬变，并且输出保证在VCC低至1V的正确逻辑状态。低电源电流使CXDR75101 CXDR75102非常适合用于便携式设备

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 CXDR75101/CXDR75102 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. 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 220ms after VCC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. The CXDR75102 has an open-drain output stage, while the CXDR75101 have push-pull outputs. The CXDR75102s open-drain RESET output requires a pull-up resistor that can be connected to a voltage higher than VCC. The CXDR75101have an active-low 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 CXDR75101 CXDR75102ideal for use in portable equipment. The CXDR75101 CXDR75102are available in 3-pin SOT-23 packages.

   产品特点 返回TOP

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

„ Fully Specified Over Temperature 

„ Available in two Output Configurations Push-Pull RESET Output (CXDR75101) Open-Drain RESET Output (CXDR75102) 

„ 220ms min Power-On Reset Pulse Width 

„ 10μA Supply Current 

„ Guaranteed Reset Valid to VCC = +1V 

„ Power Supply Transient Immunity 

„ No External Components 

„ 3-Pin SOT-23 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

   技术规格书（产品PDF) 返回TOP 

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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