MC33064_04 Datasheet, PDF (1/10 Pages) Microsemi Corporation – UNDERVOLTAGE SENSING CIRCUIT

THE INFINITE POWER OF INNOVATION
MC33064 / MC34064
UNDERVOLTAGE SENSING CIRCUIT
PRODUCTION DATA SHEET
DESCRIPTION
The MC34064 is an undervoltage sensing collector output stage capable of sinking
circuit designed specifically for use as a up to 60mA. The MC34064's RESET
reset controller in microprocessor- based output is specified to be fully functional at
systems. It offers the designer an VIN=1V. A major improvement over
economical, space-efficient solution for low competing products is the glitch-free
supply voltage detection when used in supply current during undervoltage
combination with a single pullup resistor. detection. Competing products demand a
Adding one capacitor offers the step function increase in operating current
functionality of a programmable delay time during the time that you least want or need
after power returns. The 34064 consists of a it: during power loss. See Product
temperature stable reference comparator Highlight below.
with hysteresis, high-current clamping
diode and open
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
PRODUCT HIGHLIGHT
KEY FEATURES
„ Monitors 5V Supplies (VT =
4.6V Typ.)
„ Outputs Fully Defined At VIN
= 1V (See Figure 1)
„ Glitch-Free Supply Current
During Switching (See
Product Highlight)
„ Ultra-Low Supply Current
(500µA Max.)
„ 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
KEY FEATURES
„ All Microprocessor Or
Microcontroller Designs
Using 5V Supplies
„ Simple 5V Undervoltage
Detection
PACKAGE ORDER INFO
T_A (°C)
Plastic SOIC
DM _8-Pin
RoHS / Pb-free
Transition DC: 0440
Plastic TO-92
LP _3-Pin
RoHS / Pb-free
Transition DC: 0509
0 to 70
MC34064DM
MC34064LP
-40 to 85 MC33064DM
MC33064LP
Plastic SOT-89
PK _3-Pin
RoHS / Pb-free
Transition DC: 0518
MC34064PK
MC33064PK
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. MC34064DM-TR)
Copyright © 1999
Rev. 1.3a,2005-03-01
LINFINITY MICROELECTRONICS INC.
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: [phone]
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