MC33164-3_05

Manufacturer Part NumberMC33164-3_05
Description3V UNDERVOLTAGE SENSING CIRCUIT
ManufacturerMICROSEMI [Microsemi Corporation]
MC33164-3_05 datasheet
 
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T
H E
I
N F I N I T E
P
O W E R
O F
D E S C R I P T I O N
The
MC33164-3
and
MC34164-3
undervoltage
sensing
circuits
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
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
T
A
0 to 70
-40 to 85
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e.
MC34164-3DM-TR)
L
Copyright © 1999
Rev. 1.2a,2005-03-09
11861 W
ESTERN
3 V U
N D E R V O L T A G E
P
R O D U C T I O N
I
N N O V A T I O N
are
returns. The MC33164-3 and MC34164-3
designed
consist of a temperature stable reference
comparator
with
hysteresis,
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.
P R O D U C T H I G H L I G H T
PACKAGE ORDER INFO
Plastic SOIC
DM
LP
8-Pin
(°C)
RoHS Compliant / Pb-free
RoHS Compliant / Pb-free
Transition DC: 0440
MC34164-3DM
MC33164-3DM
F
M
I N
I N I T Y
I C R O E L E C T R O N I C S
A
, G
G
, CA. 92841, 714-898-8121, F
VENUE
ARDEN
ROVE
MC33164-3 / MC34164-3
S
C
E N S I N G
I R C U I T
D
S
A T A
H E E T
K E Y F E A T U R E S
Monitors +3.3V Supplies (V
2.7V Typ)
high-current
Outputs Fully Defined At V
(See Product Highlight)
Ultra-Low Supply Current (13µA
Max.)
Temperature Compensated I
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
A P P L I C A T I O N S
All Microprocessor Or
Microcontroller Designs Using
3V/3.3V Supplies
Simple 3V/3.3V Undervoltage
Detection
Plastic TO-92
3-Pin
Transition DC: 0509
MC34164-3LP
MC33164-3LP
I
.
N C
: 714-893-2570
AX
=
T
≥ 1V
IN
CC
1

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MC33164-3_05 Summary of contents

  • Page 1

    ... The MC33164-3 and MC34164-3's RESET output is specified to be fully functional at VIN ≥ 1V. See Product Highlight below ...

  • Page 2

    ... MC33164-3/MC34164-3 ABSOLUTE MAXIMUM RATINGS Input Supply Voltage (V ) ............................................................................... -1V to 12V IN RESET Output Voltage (V ) ..................................................................................... 12V OUT Output Sink Current (I ) ............................................................ Internally Limited (mA) OL Clamp Diode Forward Current (I ), Pin 1 to pin 2 ............................................... 100mA F Operating Junction Temperature Plastic (DM Packages) .................................................................................. 150° ...

  • Page 3

    ... Note 3. Maximum junction temperature ratings must be observed. (Unless otherwise specified, these specifications apply over the operating ambient temperatures of 0°C 85°C for the MC33164-3. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.) Parameter ...

  • Page 4

    ... MC33164-3/MC34164-3 GRAPH / CURVE INDEX Characteristic Curves FIGURE # 1. INPUT VOLTAGE vs. RESET OUTPUT VOLTAGE 2. POWER-UP RESET VOLTAGE 3. POWER-DOWN RESET VOLTAGE 4. RESET OUTPUT VOLTAGE vs. INPUT VOLTAGE HYSTERESIS 5. THRESHOLD VOLTAGE vs. TEMPERATURE 6. THRESHOLD HYSTERESIS vs. TEMPERATURE 7 ...

  • Page 5

    ... FIGURE 2. — POWER-UP RESET VOLTAGE 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 1.2 1.4 1.6 1.8 2.0 FIGURE 4. — RESET OUTPUT VOLTAGE vs. INPUT VOLTAGE 3.00 2.50 2.00 1.50 1.00 0.50 0 1.2 1.6 2.0 2.63 MC33164-3/MC34164 10kohms 25° RESET 0 0.4 0.8 1.2 1.6 (t) Time - (ms 82k 25°C A 2.65 2.67 2.69 2.71 ...

  • Page 6

    ... MC33164-3/MC34164-3 FIGURE 5. — THRESHOLD VOLTAGE vs. TEMPERATURE 2.800 2.775 2.750 2.725 V High Threshold Voltage T+ 2.700 2.675 V Low Threshold Voltage T- 2.650 2.625 2.600 2.575 2.550 -50 - Ambient Temperature - (°C) A FIGURE 7. — SUPPLY CURRENT vs. INPUT VOLTAGE ...

  • Page 7

    ... FIGURE 12. — CLAMP DIODE FORWARD VOLTAGE -1.6 -1.5 -1.4 -1.3 -1.2 -1.1 -1 -0.9 -0.8 -0.7 -0 100 MC33164-3/MC34164 vs. TEMPERATURE 1mA OUT - Ambient Temperature - (°C) A vs. FORWARD CURRENT -40°C 25°C 85° ...

  • Page 8

    ... MC33164-3/MC34164-3 FIGURE 13. — PROPAGATION DELAY — HIGH to LOW 25°C 3.5V A 2.4V 4.0 3.0 2.0 2.5 1.5 0 1.5 2 2.5 (t) Time - (µs) FIGURE 15. — MINIMUM OPERATING VOLTAGE OVER TEMPERATURE 1.000 V = Ramp Down IN 0.950 I = 250µA OUT 0 ...

  • Page 9

    ... FIGURE 17. — SWITCHING THE LOAD OFF WHEN R RESET Microprocessor Circuit C DLY DLY V IN FIGURE 20. — SOLAR POWERED BATTERY CHARGER 1.0k RESET V MC33164-3/MC34164 BATTERY REACHES BELOW 2.7V RESET 1.2V REF IN RESET 1.2V REF Load SOLAR CELLS 9 ...

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