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MC33164-3 Datasheet

3V UNDERVOLTAGE SENSING CIRCUIT

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T H E I N F I N I T E P O W E R O F I N N O VAT I O N
MC33164-3/MC34164-3
3V UNDERVOLTAGE SENSING CIRCUIT
PRODUCTION DATA SHEET
DESCRIPTION
The MC33164-3 and MC34164-3 are
undervoltage sensing circuits designed
specifically for use as reset controllers in
microprocessor-based systems. They
offer the designer an 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. The MC33164-3 and MC34164-3
consist of a temperature stable reference
comparator with hysteresis, high-current
clamping diode and an open collector
output stage capable of sinking more
than 6mA over the full temperature
range. The MC33164-3 and MC34164-3's
RESET output is specified to be fully
functional at VIN 1V. See Product
Highlight below.
NOTE: For current data & package dimensions, visit our web site: http://www.linfinity.com.
PRODUCT HIGHLIGHT
RESET OUTPUT VS. I N P U T V O LTA G E
10
3
K E Y F E AT U R E S
s Monitors +3.3V Supplies
(V = 2.7V Typ)
T
s Outputs Fully Defined At VIN 1V (See
Product Highlight)
s Ultra-Low Supply Current (13µA Max.)
! Temperature Compensated ICC For
Extremely Stable Current Consumption
! µP Reset Delay Programmable With 1
External Resistor And Capacitor
! Comparator Hysteresis Prevents Output
Oscillation (60mV Typ.)
! Electrically Compatible With Motorola
MC34164-3
! Pin-to-Pin Compatible With Motorola
MC34064 / MC34164
APPLICATIONS
s All Microprocessor Or Microcontroller
Designs Using 3V/3.3V Supplies
s Simple 3V/3.3V Undervoltage Detection
2
1
Undefined
0
0123
Input Voltage - (V)
10
PA C K A G E O R D E R I N F O R M AT I O N
TA (°C)
DM
Plastic
8-pin
SOIC
LP
Plastic
3-pin
TO-92
0 to 70
MC34164-3DM
MC34164-3LP
-40 to 85
MC33164-3DM
MC33164-3LP
Note: All surface-mount packages are available in Tape & Reel.
Append the letter "T" to part number. (i.e. MC34164-3DMT)
Copyright © 1999
Rev. 1.2 6/99
LINFINITY MICROELECTRONICS INC.
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
1


  Microsemi Electronic Components Datasheet  

MC33164-3 Datasheet

3V UNDERVOLTAGE SENSING CIRCUIT

No Preview Available !

PRODUCT DATABOOK 1996/1997
MC33164-3/MC34164-3
3V UNDERVOLTAGE SENSING CIRCUIT
PRODUCTION DATA SHEET
A B S O L U T E M A X I M U M R AT I N G S (Note 1)
Input Supply Voltage (VIN) ............................................................................... -1V to 12V
RESET Output Voltage (VOUT) ..................................................................................... 12V
Output Sink Current (IOL) ............................................................ Internally Limited (mA)
Clamp Diode Forward Current (IF), Pin 1 to pin 2 ............................................... 100mA
Operating Junction Temperature
Plastic (DM, LP - Packages) .................................................................................. 150°C
Storage Temperature Range ...................................................................... -65°C to 150°C
Lead Temperature (Soldering, 10 seconds) ............................................................. 300°C
Note 1. Values beyond which damage may occur. All voltages are specified with respect to
ground, and all currents are positive into the specified terminal.
THERMAL DATA
DM PACKAGE:
THERMAL RESISTANCE-JUNCTION TO AMBIENT, θJA
LP PACKAGE:
165°C/W
THERMAL RESISTANCE-JUNCTION TO AMBIENT, θJA
156°C/W
Junction Temperature Calculation: TJ = TA + (PD x θJA).
The θJA numbers are guidelines for the thermal performance of the device/pc-board system.
All of the above assume no ambient airflow
BLOCK DIAGRAM
VIN
PACKAGE PIN OUTS
RESET
VIN
N.C.
GROUND
18
27
36
45
N.C.
N.C.
N.C.
N.C.
DM PACKAGE
(Top View)
3. GROUND
2. VIN
1. RESET
LP PACKAGE
(Top View)
RESET
1.2 VREF
GROUND
2 Copyright © 1999
Rev. 1.2 6/99


Part Number MC33164-3
Description 3V UNDERVOLTAGE SENSING CIRCUIT
Maker Microsemi
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