MC33464
SEMICONDUCTOR
TECHNICAL DATA
MICROPOWER
UNDERVOLTAGE
SENSING CIRCUITS
N SUFFIX
PLASTIC PACKAGE
CASE 1212
(SOT–23–5)
5
1
Order this document by MC33464/D
H SUFFIX
PLASTIC PACKAGE
CASE 1213
(SOT–89)
TAB
1
(Tab is connected
to Pin 2)
15
4
2
3
(Top View)
Reset
Input
Ground
N/C
N/C
1
2
3
(Top View)
Reset
Input
Ground
Tab
1
MOTOROLA ANALOG IC DEVICE DATA
Micropower Undervoltage
Sensing Circuits
The MC33464 series are micropower undervoltage sensing circuits that
are specifically designed for use with battery powered microprocessor based
systems, where extended battery life is required. A choice of several
threshold voltages from 0.9 V to 4.5 V are available. These devices feature a
very low quiescent bias current of 0.8 µA typical.
The MC33464 series features a highly accurate voltage reference, a
comparator with precise thresholds and built–in hysteresis to prevent erratic
reset operation, a choice of output configurations between open drain or
complementary MOS, and guaranteed operation below 1.0 V with extremely
low standby current. These devices are available in either SOT–89 3–pin or
SOT–23 5–pin surface mount packages.
Applications include direct monitoring of the MPU/logic power supply
used in portable, appliance, automotive and industrial equipment.
MC33464 Features:
• Extremely Low Standby Current of 0.8 µA at V
in
= 1.5 V
• Wide Input Voltage Range (0.7 V to 10 V)
• Monitors Power Supply Voltages from 1.1 V to 5.0 V
• High Accuracy Detector Threshold (±2.5%)
• Two Reset Output Types (Open Drain or Complementary Drive)
• Two Surface Mount Packages (SOT–89 or SOT–23 5–Pin)
ORDERING INFORMATION
Device
Threshold
Voltage
Type Marking
Package
(Qty/Reel)
MC33464H–09AT1 0.9
T09A
MC33464H–20AT1 2.0
Open
T20A
MC33464H–27AT1 2.7
Drain
T27A
MC33464H–30AT1 3.0
Reset
T30A
MC33464H–45AT1 4.5 T45A
MC33464H–09CT1 0.9
T43C
MC33464H–45CT1 4.5 T45C
MC33464N–09ATR 0.9
9N
MC33464N–20ATR 2.0 0R
MC33464N–21ATR 2.1
Open
1R
MC33464N–27ATR 2.7
Drain
7R
MC33464N–30ATR 3.0
Reset
0S
MC33464N–45ATR 4.5 5T
SOT–23
MC33464N–48ATR 4.8 8T
(3000)
MC33464N–09CTR 0.9
9F
MC33464N–20CTR 2.0
Compl.
0J
MC33464N–27CTR 2.7
MOS
7J
MC33464N–30CTR 3.0
Reset
0K
MC33464N–45CTR 4.5 5L
Other voltages from 0.9 to 6.0 V , in 0.1 V increments, are available. Consult factory for
information.
Motorola, Inc. 1999 Rev 2, 07/1999
MC33464
2
MOTOROLA ANALOG IC DEVICE DATA
Representative Block Diagrams
This device contains 25 active transistors.
MC33464X–YYATZ
Open Drain Configuration
MC33464X–YYCTZ
Complementary Drive Configuration
X Denotes Package Type
YY Denotes Threshold Voltage
TZ Denotes Taping Type
V
ref
2 Input
1
Reset
3 Gnd
V
ref
2 Input
1
Reset
3 Gnd
MAXIMUM RATINGS (T
C
= 25°C, unless otherwise noted.)
Rating Symbol Value Unit
Power Input Supply Voltage
Reset Output Current (Source or Sink)
Power Dissipation and Thermal Characteristics
Maximum Power Dissipation
Case 1212 (SOT–23) N Suffix P
D
150 mW
Thermal Resistance, Junction–to–Ambient R
θJA
667 °C/W
Maximum Power Dissipation
Case 1213 (SOT–89) H suffix P
D
300 mW
Thermal Resistance, Junction–to–Ambient R
θJA
333 °C/W
Operating Junction Temperature
Operating Ambient Temperature
Storage Temperature Range
Lead Temperature (Soldering)
MC33464
3
MOTOROLA ANALOG IC DEVICE DATA
ELECTRICAL CHARACTERISTICS (For all values T
A
= 25°C (Note 1), unless otherwise noted.)
Characteristic
Symbol Min Typ Max Unit
COMPARATOR
V
High State Output (Vin Decreasing) V
IH
09 Suffix 0.878 0.9 0.922
20 Suffix 1.95 2.0 2.05
21 Suffix 2.048 2.1 2.152
27 Suffix 2.633 2.7 2.768
30 Suffix 2.925 3.0 3.075
43 Suffix 4.193 4.3 4.407
45 Suffix 4.388 4.5 4.613
48 Suffix 4.680 4.8 4.920
Threshold Hysteresis V
H
V
09 Suffix 0.027 0.045 0.063
20 Suffix 0.060 0.100 0.140
21 Suffix 0.063 0.105 0.147
27 Suffix 0.081 0.135 0.189
30 Suffix 0.090 0.150 0.210
43 Suffix 0.129 0.215 0.301
45 Suffix 0.135 0.225 0.315
48 Suffix 0.144 0.240 0.336
Threshold Voltage Temperature Coefficient
V
High State (Complementary Output: I
source
= 1.0 mA) V
OH
Vin – 2.1 Vin – 1.0 V
in
Low State (Complementary or Open Drain: I
sink
= 1.0 mA) V
OL
– 0.025 0.05
Output Sink Current (Vin = 1.5 V, VOL = 0.5 V)
Output Source Current (Vin = 4.5 V, VOL = 2.4 V)
Operating Input Voltage Range
µA
Vin = 2.9 V – 0.9 2.7
Vin = 5.6 V – 1.2 3.6
Propagation Delay Time (Note 2)
µs
NOTES: 1. Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
2.Propagation delay time is measured from the rising or falling edge of the input voltage to the point where the output voltage has transitioned to 50%
of its final value.