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PDF MC33164-3 Data sheet ( Hoja de datos )
| Número de pieza | MC33164-3 | |
| Descripción | 3V UNDERVOLTAGE SENSING CIRCUIT | |
| Fabricantes | Microsemi | |
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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
1 page  
PRODUCT DATABOOK 1996/1997
MC33164-3/MC34164-3
3V UNDERVOLTAGE SENSING CIRCUIT
PRODUCTION DATA SHEET
CHARACTERISTIC CURVES
FIGURE 1. — INPUT VOLTAGE and RESET OUTPUT
VOLTAGE vs. TIME
10
7.5 RL = 82k
TA = 25°C
5
2.5
0
10
7.5
5
2.5
0
0
.2 .4 .6 .8 1.0 1.2 1.4 1.6 1.8 2.0
(t) Time - (ms)
FIGURE 2. — POWER-UP RESET VOLTAGE
2.0
1.8
RL = 10kohms
TA = 25°C
1.6
1.4
1.2
1.0
VIN
0.8
0.6
0.4
0.2
0
0
0.4 0.8 1.2
(t) Time - (ms)
RESET
1.6 2.0
FIGURE 3. — POWER-DOWN RESET VOLTAGE
2.0
1.8
RL = 10kohms
TA = 25°C
1.6
1.4
1.2
1.0
VIN
0.8
0.6
0.4
RESET
0.2
0
0 0.4 0.8 1.2
(t) Time - (ms)
1.6
2.0
FIGURE 4. — RESET OUTPUT VOLTAGE vs. INPUT VOLTAGE
3.00
2.50
RL = 82kW
TA = 25°C
2.00
1.50
1.00
0.50
0
2.63
2.65
2.67
2.69
2.71
(VIN) Input Voltage - (V)
2.73
Copyright © 1999
Rev. 1.2 6/99
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet MC33164-3.PDF ] | |
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