MC33465 Datasheet, PDF (1/8 Pages) ON Semiconductor – Micropower Undervoltage Sensing Circuits with Programmable Ouput Delay

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Advance Information
Micropower Undervoltage
Sensing Circuits with
Programmable Output Delay
The MC33465 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. This device features a
very low quiescent bias current of 1.0 µA typical.
The MC33465 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, a time delayed output, which can be programmed by the
system designer, and guaranteed operation below 1.0 V with extremely low
standby current. This device is available in a SOT–23 5–pin surface mount
package.
Applications include direct monitoring of the MPU/logic power supply
used in appliance, automotive, industrial and portable equipment.
MC33465 Features:
• Extremely Low Standby Current of 1.0 µA at Vin = 3.5 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)
• Programmable Output Delay by External Capacitor (100 ms typ. with
0.15 µF)
• Surface Mount Package (SOT–23 5–Pin)
• Convenient Tape and Reel (3000 per Reel)
ORDERING INFORMATION
Device
Threshold
Voltage
Operating
Type Temperature Range Package
MC33465N–09ATR
MC33465N–20ATR
MC33465N–27ATR
MC33465N–30ATR
MC33465N–45ATR
MC33465N–09CTR
MC33465N–20CTR
MC33465N–27CTR
MC33465N–30CTR
MC33465N–45CTR
0.9
2.0
Open
2.7
Drain
3.0
Reset
4.5
0.9
TA = –30° to +80°C SOT–23
2.0
Compl.
2.7
MOS
3.0
Reset
4.5
Other voltages from 0.9 to 6.0 V, in 0.1 V increments, are available. Consult factory for
information.
MC33465
MICROPOWER
UNDERVOLTAGE
SENSING CIRCUITS
WITH PROGRAMMABLE
OUTPUT DELAY
SEMICONDUCTOR
TECHNICAL DATA
5
1
N SUFFIX
PLASTIC PACKAGE
CASE 1212
(SOT–23)
PIN CONNECTIONS
Reset 1
Input 2
Ground 3
5 CD
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