P
RODUCTION
D
ATA
S
HEET
T
HE
I
NFINITE
P
OWER OF
I
NNOVATION
L
IN
F
INITY
M
ICROELECTRONICS
I
NC
.
11861
W
ESTERN
A
VENUE
,
G
ARDEN
G
ROVE
,
CA.
92841,
714-898-8121,
F
AX
:
714-893-2570
1
Copyright © 1997
Rev. 1.5a,2005-03-09
MC33164 / MC34164
5V
U
NDERVOLTAGE
S
ENSING
C
IRCUIT
DESCRIPTION
The MC33164 and the MC34164 are
micropower undervoltage sensing circuits
ideal for use in low-power battery
applications, computer peripheral,
consumer, appliance and automotive
equipment. The device offers a 1.2V
temperature compensated bandgap
reference, a precision comparator with
hysteresis and a high current open collector
output. This device operates from 1 to
10V input supply and drains <10µA in a
faultless condition and a trip level of
4.33V. Both devices are available in an 8-
pin, 150mil SOIC package and a plastic
TO-92 package. The MC33164 is rated
from -40°C to 85°C and the MC34164
from 0°C to 70°C.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
PRODUCT HIGHLIGHT
OW
OLTAGE
ICROPROCESSOR
ESET
POWER
SUPPLY
1.2 V
REF
MICROPROCESSO
CIRCUIT
RESET
C
DLY
R
2
1
3
KEY FEATURES
LOW STANDBY CURRENT
TEMPERATURE
COMPENSATED BANDGAP
REFERENCE
PRECISION COMPARATOR
WITH 50MV OF
HYSTERESIS
CLAMP DIODE FOR
DISCHARGING DELAY
CAPACITOR
OUTPUT CURRENT SINK
CAPABILITY FROM 7 TO
50MA
1-10V INPUT SUPPLY
RANGE
AVAILABLE IN 150MIL, 8-
PIN SOIC AND PLASTIC
TO-92 PACKAGES
PIN-FOR-PIN COMPATIBLE
WITH MC33164 / 34164
APPLICATIONS
µPOWER RESET
GENERATOR
5V VOLTAGE MONITOR
BATTERY-LEVEL
DETECTOR
PACKAGE ORDER INFO
DM
Plastic SOIC
8-Pin
LP
Plastic TO-92
3-Pin
T
A
(°C)
RoHS Compliant / Pb-free
Transition DC: 0440 RoHS Compliant / Pb-free
Transition DC: 0509
0 to 70 MC34164DM MC34164LP
-40 to 85 MC33164DM MC33164LP
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e.
MC33164DM-TR)