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LX7001IDM Datasheet(PDF) 1 Page - Microsemi Corporation |
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LX7001IDM Datasheet(HTML) 1 Page - Microsemi Corporation |
1 / 9 page PACKAGE ORDER INFORMA TION T A (°C) Plastic SOIC 8-pin 0 to 70 LX7001CDM LX7001CLP — -40 to 85 LX7001IDM LX7001ILP — -55 to 125 — — LX7001MY DM Plastic TO-92 3-pin LP Ceramic Dip 8-pin Y Note: All surface-mount packages are available in Tape & Reel. Append the letter "T" to part number. (i.e. LX7001CDMT) TRANSIENT IMMUNE UNDERVOLTAGE SENSING CIRCUIT P RODUCTION D AT A S HEET T HE I NFINITE P OWER OF I NNOV A TION LX7001 DESCRIPTION The LX7001 is an improved undervoltage sensing circuit specifi- cally designed for use as a reset controller in microprocessor-based systems. Today's complex miniaturized systems present difficult challanges to the system designer such as overcom- ing spurious noise problems. The LX7001 is optimized for systems that must be tolerant of high-speed power supply glitches caused by high-speed logic transitions and similar switching phenomena. The LX7001 offers a unique stage that couples glitch immunity with a micropower, ultra- stable band-gap reference for preci- sion sensing of undervoltage condi- tions. It offers the designer an KEY FEATURES s Fully Characterized, Transient Immune Input Stage (See Product Highlight) s Monitors 5V Supplies (V TRIP=4.6V Typ.) s Outputs Fully Defined At V CC=1V s Ultra-Low Supply Current (500µA Max. Over Temp) ! Temperature Compensated I CC For Extremely Stable Current Consumption ! µP Reset Function Programmable With 1 External Resistor And Capacitor ! Comparator Hysteresis Prevents Output Oscillation ! Electrically Compatible With Motorola MC34064 ! Pin-to-Pin Compatible With Motorola MC34064/MC34164 economical, space-efficient solution for low supply voltage detection when used in combination with a single pull-up resistor. Adding one capacitor offers the functionality of a programmable delay time after power returns. Additionally, the LX7001 offers excellent temperature stability. A high-quality trimmed voltage reference and bias circuit permit very accurate and repeatable undervoltage sensing. The remaining blocks consist of a comparator with hyster- esis, high current clamping diode and open collector output stage capable of sinking up to 60mA. The LX7001's RESET output is specified to be fully functional at V IN=1V. APPLICA TIONS s s s s s All Microprocessor Or Microcontroller Designs Using 5V Supplies s s s s s Simple 5V Undervoltage Detection PRODUCT HIGHLIGHT INPUT TRANSIENT IMMUNITY 1000 0.1 100 1 10 100 IMMUNE ACTIVE (e n) Noise Pulse Amplitude - (mV) NOTE: For current data & package dimensions, visit our web site: http://www.linfinity.com. Copyright © 1999 Rev. 1.2 6/99 1 11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570 L IN F INITY M ICROELECTRONICS I NC . |
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