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MC34064 Schematic ( PDF Datasheet ) - Motorola Semiconductors
| Teilenummer | MC34064 |
|
| Beschreibung | (MC33064 / MC34064) UNDERVOLTAGE SENSING CIRCUIT | |
| Hersteller | Motorola Semiconductors | |
| Logo |  |
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Gesamt 8 Seiten 
Undervoltage Sensing Circuit
The MC34064 is an undervoltage sensing circuit specifically designed for
use as a reset controller in microprocessor-based systems. It offers the
designer an economical solution for low voltage detection with a single
external resistor. The MC34064 features a trimmed-in-package bandgap
reference, and a comparator with precise thresholds and built-in hysteresis
to prevent erratic reset operation. The open collector reset output is capable
of sinking in excess of 10 mA, and operation is guaranteed down to 1.0 V
input with low standby current. These devices are packaged in 3-pin
TO-226AA, 8-pin SO–8 and Micro–8 surface mount packages.
Applications include direct monitoring of the 5.0 V MPU/logic power
supply used in appliance, automotive, consumer and industrial equipment.
• Trimmed-In-Package Temperature Compensated Reference
• Comparator Threshold of 4.6 V at 25°C
• Precise Comparator Thresholds Guaranteed Over Temperature
• Comparator Hysteresis Prevents Erratic Reset
• Reset Output Capable of Sinking in Excess of 10 mA
• Internal Clamp Diode for Discharging Delay Capacitor
• Guaranteed Reset Operation with 1.0 V Input
• Low Standby Current
• Economical TO–226AA, SO–8 and Micro–8 Surface Mount Packages
Order this document by MC34064/D
MC34064
MC33064
UNDERVOLTAGE
SENSING CIRCUIT
SEMICONDUCTOR
TECHNICAL DATA
P SUFFIX
PLASTIC PACKAGE
CASE 29
(TO–226AA)
123
Pin 1. Reset
2. Input
3. Ground
D SUFFIX
PLASTIC PACKAGE 8
CASE 751
(SO–8)
1
Representative Block Diagram
Input 2 (2)
Reset
1 (1)
DM SUFFIX
PLASTIC PACKAGE
CASE 846A
(Micro–8)
8
1
Reset 1
Input 2
N.C. 3
Ground 4
8 N.C.
7 N.C.
6 N.C.
5 N.C.
(Top View)
1.2 Vref
Gnd 3 (4)
=
Sink Only
Positive True Logic
Pin numbers adjacent to terminals are for the 3–pin TO–226AA package.
Pin numbers in parenthesis are for the 8–lead packages.
This device contains 21 active transistors.
MOTOROLA ANALOG IC DEVICE DATA
ORDERING INFORMATION
Device
Operating
Temperature Range Package
MC34064D–5
MC34064DM–5
MC34064P–5
TA = 0° to +70°C
SO–8
Micro–8
TO–226AA
MC33064D–5
SO–8
MC33064DM–5 TA = – 40° to +85°C Micro–8
MC33064P–5
TO–226AA
© Motorola, Inc. 1996
Rev 2
1
 
R
SEATING
PLANE
AB
P
L
F
K
XX
H
V
G
C
1
N
N
MC34064 MC33064
OUTLINE DIMENSIONS
P SUFFIX
PLASTIC PACKAGE
CASE 29–04
(TO–226AA)
ISSUE AD
D
J
SECTION X–X
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. CONTOUR OF PACKAGE BEYOND DIMENSION R
IS UNCONTROLLED.
4. DIMENSION F APPLIES BETWEEN P AND L.
DIMENSION D AND J APPLY BETWEEN L AND K
MINIMUM. LEAD DIMENSION IS UNCONTROLLED
IN P AND BEYOND DIMENSION K MINIMUM.
INCHES
DIM MIN MAX
A 0.175 0.205
B 0.170 0.210
C 0.125 0.165
D 0.016 0.022
F 0.016 0.019
G 0.045 0.055
H 0.095 0.105
J 0.015 0.020
K 0.500 –––
L 0.250 –––
N 0.080 0.105
P ––– 0.100
R 0.115 –––
V 0.135 –––
MILLIMETERS
MIN MAX
4.45 5.20
4.32 5.33
3.18 4.19
0.41 0.55
0.41 0.48
1.15 1.39
2.42 2.66
0.39 0.50
12.70 –––
6.35 –––
2.04 2.66
––– 2.54
2.93 –––
3.43 –––
–A–
8
–B–
1
5
4
D SUFFIX
PLASTIC PACKAGE
CASE 751–05
(SO–8)
ISSUE P
J
G
M_
–T–
8X D
SEATING
PLANE
0.25 (0.010) M T B S A S
NOTES:
1. DIMENSIONS A AND B ARE DATUMS AND T IS A
DATUM SURFACE.
2. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
3. DIMENSIONS ARE IN MILLIMETER.
4. DIMENSION A AND B DO NOT INCLUDE MOLD
PROTRUSION.
5. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
6. DIMENSION D DOES NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS
OF THE D DIMENSION AT MAXIMUM MATERIAL
CONDITION.
MILLIMETERS
DIM MIN MAX
A 4.80 5.00
B 3.80 4.00
C 1.35 1.75
D 0.35 0.49
F 0.40 1.25
G 1.27 BSC
J 0.18 0.25
K 0.10 0.25
M 0_ 7_
P 5.80 6.20
R 0.25 0.50
6 MOTOROLA ANALOG IC DEVICE DATA
6 Page | ||
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| PDF Download | [ MC34064 Schematic.PDF ] | |
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