LX7001CDM(2005) Ver la hoja de datos (PDF) - Microsemi Corporation
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LX7001CDM Datasheet PDF : 9 Pages
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THE INFINITE POWER OF INNOVATION
LX7001
TRANSIENT IMMUNE UNVERVOLTAGE SENSING CIRCUIT
PRODUCTION DATA SHEET
DESCRIPTION
The LX7001 is an improved undervoltage economical, space-efficient solution for
sensing circuit specifically designed for use low supply voltage detection when used in
as a reset controller in microprocessor- combination with a single pull-up resistor.
based systems. Today's complex Adding one capacitor offers the
miniaturized systems present difficult functionality of a programmable delay
challenges to the system designer such as time after power returns. Additionally, the
overcoming spurious noise problems. The LX7001 offers excellent temperature
LX7001 is optimized for systems that must stability. A high-quality trimmed voltage
be tolerant of high-speed power supply reference and bias circuit permit very
glitches caused by high-speed logic accurate and repeatable undervoltage
transitions and similar switching sensing. The remaining blocks consist of a
phenomena. The LX7001 offers a unique
stage that couples glitch immunity with a
micropower, ultra stable band-gap reference
for precision sensing of undervoltage
conditions. It offers the designer an
comparator with hysteresis, 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 VIN=1V.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
PRODUCT HIGHLIGHT
100
KEY FEATURES
Fully Characterized,
Transient Immune Input
Stage (See Product
Highlight)
Monitors 5V Supplies
(VTRIP=4.6V Typ.)
Outputs Fully Defined At
VCC=1V
Ultra-Low Supply Current
(500µA Max. Over Temp)
Temperature Compensated
ICC 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
ACTIVE
10
IMMUNE
1
APPLICATIONS
All Microprocessor Or
Microcontroller Designs
Using 5V Supplies
Simple 5V Undervoltage
Detection
0.1
100
0
(en) Noise Pulse Amplitude - (mV)
PACKAGE ORDER INFO
TA (°C)
Plastic SOIC
DM 8-Pin
RoHS Compliant / Pb-free
Transition DC:0440
Plastic TO-92
LP 3-Pin
RoHS Compliant / Pb-free
Transition DC:0509
0 to 70
LX7001CDM
LX7001CLP
-40 to 85
LX7001IDM
LX7001ILP
-55 to 125
Ceramic Dip
Y 8-Pin
LX7001MY
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX7001CDM-TR)
Copyright © 1999
Rev. 1.2a,2005-03-09
LINFINITY MICROELECTRONICS INC.
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
1
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