MC33464 Datasheet, PDF (1/8 Pages) ON Semiconductor – MICROPOWER UNDERVOLTAGE SENSING CIRCUITS

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Advance Information
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 Vin = 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
Operating
Package
Voltage Type Temperature Range (Qty/Reel)
MC33464H–09AT1
0.9
MC33464H–20AT1
2.0
Open
MC33464H–27AT1
2.7
Drain
MC33464H–30AT1
MC33464H–45AT1
3.0
Reset
4.5
SOT–89
MC33464H–09CT1
0.9
(1000)
MC33464H–20CT1
2.0
Compl.
MC33464H–27CT1
2.7
MOS
MC33464H–30CT1
3.0
Reset
MC33464H–45CT1
4.5
MC33464N–09ATR
0.9
TA = –30° to +80°C
MC33464N–20ATR
2.0
Open
MC33464N–27ATR
2.7
Drain
MC33464N–30ATR
3.0
Reset
MC33464N–45ATR
4.5
SOT–23
MC33464N–09CTR
0.9
MC33464N–20CTR
2.0
Compl.
(3000)
MC33464N–27CTR
2.7
MOS
MC33464N–30CTR
3.0
Reset
MC33464N–45CTR
4.5
Other voltages from 0.9 to 6.0 V, in 0.1 V increments, are available. Consult factory for
information.
MC33464
MICROPOWER
UNDERVOLTAGE
SENSING CIRCUITS
SEMICONDUCTOR
TECHNICAL DATA
TAB
1
H SUFFIX
PLASTIC PACKAGE
CASE 1213
(SOT–89)
Reset 1
Input 2
Ground 3
(Top View)
Tab
(Tab is connected
to Pin 2)
5
1
N SUFFIX
PLASTIC PACKAGE
CASE 1212
(SOT–23)
Reset 1
5 N/C
Input 2
Ground 3
4 N/C
(Top View)
This document contains information on a new product. Specifications and information herein
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© Motorola, Inc. 1996
Rev 0
1