CXDR75128 CXDR75129开漏输出级活动低复位输出5V 3.3V 3.0V电源电路VCC电源电压下降到预设阈值以下时重置信号VCC上升到重置阈值以上时滞后使其保持为外部可编程延时发生器确定的延时断言

产品简介

The CXDR75129L has an open-drain output stage, while the CXDR75128 have push-pull outputs. The CXDR75129’s open-drain RESET output requires a pull-up resistor that can be connected to a voltage higher than VCC. The CXDR75128 have an active-low RESET output, while the CXDR75128 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 0.8V. Low supply current makes the CXDR75128/CXDR75129 ideal for use in portable equipment. The CXDR75128/CXDR75129 are available in 5-pin SOT23-5 or TSOT-23-5 packages.The CXDR75128/CXDR75129 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. These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold, with hysteresis keeping it asserted for time delay determined by externally programmable time delay generator after VCC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available.

产品特点 返回TOPzel嘉泰姆

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

„ Fully Specified Over Temperature zel嘉泰姆

„ Available in Three Output Configurations Push-Pull RESET Output (CXDR75128L) Push-Pull RESET Output (CXDR75128H) Open-Drain RESET Output (CXDR75129L) zel嘉泰姆

„ Externally Programmable Time Delay Generator zel嘉泰姆

„ 14μA Supply Current zel嘉泰姆

„ Guaranteed Reset Valid to VCC = 0.8V zel嘉泰姆

„ Power Supply Transient Immunity zel嘉泰姆

„ 5 pin SOT-23-5 or TSOT-23-5 Packages zel嘉泰姆

„ 2% Threshold Accuracyzel嘉泰姆

应用范围 返回TOPzel嘉泰姆

„ Computers zel嘉泰姆

„ Controllers zel嘉泰姆

„ Intelligent Instruments zel嘉泰姆

„ Critical μP and μC Power Monitoring zel嘉泰姆

„ Portable / Battery-Powered Equipment zel嘉泰姆

„ Automotivezel嘉泰姆

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需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！zel嘉泰姆

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Delay Time Adjustablezel嘉泰姆
Part NO.zel嘉泰姆	VCC(Vzel嘉泰姆 min.zel嘉泰姆	VCC(Vzel嘉泰姆 max.zel嘉泰姆	Detecting Voltage(V)zel嘉泰姆	ICD zel嘉泰姆 source zel嘉泰姆 (μA)zel嘉泰姆	VTCDzel嘉泰姆 (V)zel嘉泰姆	Vth zel嘉泰姆 Accuzel嘉泰姆 racy(%)zel嘉泰姆	Isupply (μA)zel嘉泰姆	Notezel嘉泰姆	Packagezel嘉泰姆
CXDR75119zel嘉泰姆	2.2zel嘉泰姆	5.5zel嘉泰姆	0.8*VCCzel嘉泰姆	1.1zel嘉泰姆	0.833zel嘉泰姆	--zel嘉泰姆	4zel嘉泰姆	Open-Drain RESET Output TMR(ms)zel嘉泰姆 =76000×CMR(uF)zel嘉泰姆	ADFN1.5Xzel嘉泰姆 1.5-6zel嘉泰姆
CXDR75120zel嘉泰姆 /1zel嘉泰姆	0.8zel嘉泰姆	5.5zel嘉泰姆	2.2/3.7zel嘉泰姆	0.18zel嘉泰姆	--zel嘉泰姆	2zel嘉泰姆	29zel嘉泰姆	CXDR75120H/L is a Push-Pull High/Low zel嘉泰姆 Reset CXDR75121L is an Open-Drain Low Reset TCD(ms)=5700×CD(uF)zel嘉泰姆	TSOT25zel嘉泰姆
CXDR75122zel嘉泰姆 /3zel嘉泰姆	0.8zel嘉泰姆	5.5zel嘉泰姆	2.0/2.2/2.4zel嘉泰姆	0.09zel嘉泰姆	0.5zel嘉泰姆	2zel嘉泰姆	35zel嘉泰姆	CXDR75122H/L is a Push-Pull High/Low zel嘉泰姆 Reset CXDR75123L is an Open-Drain Low Reset TCD(ms)=6740×CD(uF)zel嘉泰姆	SOT25zel嘉泰姆 TDFN2X2-6zel嘉泰姆
CXDR75124zel嘉泰姆 /5zel嘉泰姆	1zel嘉泰姆	5.5zel嘉泰姆	2.6/2.9/3.1zel嘉泰姆 3.3/3.9/4.34.6zel嘉泰姆	0.67zel嘉泰姆	1.25zel嘉泰姆	2zel嘉泰姆	14zel嘉泰姆	CXDR75124L is a Push-Pull LowReset zel嘉泰姆 CXDR75125L is an Open-Drain Low zel嘉泰姆 Reset TCD(ms)=1860×CD(uF)TMR(ms)zel嘉泰姆 =88000×CMR(uF) zel嘉泰姆	SOT26 zel嘉泰姆 ADFN1.5Xzel嘉泰姆 1.5-6zel嘉泰姆
CXDR75126zel嘉泰姆 /7zel嘉泰姆	2.7zel嘉泰姆	5.5zel嘉泰姆	Individual zel嘉泰姆 Set by zel嘉泰姆 Resistorzel嘉泰姆	--zel嘉泰姆	0.788zel嘉泰姆	2zel嘉泰姆	12zel嘉泰姆	CXDR75126H/L is a Push-Pull High/Low zel嘉泰姆 Reset CXDR75127L is an Open-Drain Low Reset TCD(ms)=2700×CD(uF)zel嘉泰姆	SOT25zel嘉泰姆 SC70-5zel嘉泰姆 DFN1.6X1.6-6zel嘉泰姆 ADFN1.5X1.5-6zel嘉泰姆
CXDR75128zel嘉泰姆 /9zel嘉泰姆	0.8zel嘉泰姆	5.5zel嘉泰姆	2.5/2.6/2.93.1/3.3/4.04.3/4.6zel嘉泰姆	0.88zel嘉泰姆	1.25zel嘉泰姆	2zel嘉泰姆	14zel嘉泰姆	CXDR75128H/L is a Push-Pull High/Low zel嘉泰姆 Reset CXDR75129L is an Open-Drain Low Reset TCD(ms)=1685×CD(uF)zel嘉泰姆	SOT25zel嘉泰姆 TSOT23-5zel嘉泰姆