LIN D
O C
#:
33164
MC33164/MC34164
5V U
N D E RV O LTAGE
S
ENSING
C
I R C U I T
T
H E
I
N F I N I T E
P
O W E R
O F
I
N N O VA T I O N
P
R O D U C T I O N
D
A T A
S
H E E T
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 the non-
fault condition and 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.
K E Y F E AT U R E S
s
LOW STANDBY CURRENT
s
TEMPERATURE COMPENSATED BANDGAP
REFERENCE
s
PRECISION COMPARATOR WITH 50MV OF
HYSTERESIS
s
CLAMP DIODE FOR DISCHARGING DELAY
CAPACITOR
s
OUTPUT CURRENT SINK CAPABILITY FROM
7 TO 50MA
s
1-10V INPUT SUPPLY RANGE
s
AVAILABLE IN 150MIL, 8-PIN SOIC AND
PLASTIC TO-92 PACKAGES
s
PIN-FOR-PIN COMPATIBLE WITH MC33164/
34164
PRODUCT HIGHLIGHT
L
OW
-V
OLTAGE
M
ICROPROCESSOR
R
ESET
APPLICATIONS
2
1
POWER
SUPPLY
R
RESET
C
DLY
MICROPROCESSOR
CIRCUIT
s
µPOWER RESET GENERATOR
s
5V VOLTAGE MONITOR
s
BATTERY-LEVEL DETECTOR
1.2 V
REF
3
PA C K A G E O R D E R I N F O R M AT I O N
T
A
(°C)
0 to 70
-40 to 85
DM
Plastic SOIC
8-pin
MC34164DM
MC33164DM
LP
Plastic TO-92
3-pin
MC34164LP
MC33164LP
Note: All surface-mount packages are available in Tape & Reel.
Append the letter "T" to part number. (i.e. MC34164DMT)
F O R F U R T H E R I N F O R M AT I O N C A L L ( 7 1 4 ) 8 9 8 - 8 1 2 1
Copyright © 1997
Rev. 1.5 11/97
11861 W
ESTERN
A
VENUE
, G
ARDEN
G
ROVE
, CA. 92841
1