MC33164 Datasheet, PDF (1/7 Pages) Microsemi Corporation – 5V UNDERVOLTAGE SENSING CIRCUIT

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
L I N DO C #: 33164
MC33164/MC34164
5V UNDERVOLTAGE SENSING CIRCUIT
PR O D U C T I O N D ATA 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.
PRODUCT HIGHLIGHT
LOW-VOLTAGE MICROPROCESSOR RESET
2
POWER
SUPPLY
R
1
RESET MICROPROCESSOR
CIRCUIT
C_DLY
KEY FEATURES
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
APPLICATIONS
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)
DM
Plastic
8-pin
SOIC
LP
Plastic
3-pin
TO-92
0 to 70
MC34164DM
MC34164LP
-40 to 85
MC33164DM
MC33164LP
Note: All surface-mount packages are available in Tape & Reel.
Append the letter "T" to part number. (i.e. MC34164DMT)
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Copyright © 1997
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841
1
Rev. 1.5 11/97