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ON Semiconductor - Micropower Undervoltage Sensing Circuits

Numéro de référence NCV33164
Description Micropower Undervoltage Sensing Circuits
Fabricant ON Semiconductor 
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NCV33164 fiche technique
MC34164, MC33164,
NCV33164
Micropower Undervoltage
Sensing Circuits
The MC34164 series are undervoltage sensing circuits specifically
designed for use as reset controllers in portable microprocessor based
systems where extended battery life is required. These devices offer
the designer an economical solution for low voltage detection with a
single external resistor. The MC34164 series features a bandgap
reference, a comparator with precise thresholds and builtin hysteresis
to prevent erratic reset operation, an open collector reset output
capable of sinking in excess of 6.0 mA, and guaranteed operation
down to 1.0 V input with extremely low standby current. The MC
devices are packaged in 3pin TO92 (TO226AA), micro size
TSOP5, 8pin SOIC8 and Micro8surface mount packages. The
NCV device is packaged in SOIC8.
Applications include direct monitoring of the 3.0 V or 5.0 V
MPU/logic power supply used in appliance, automotive, consumer,
and industrial equipment.
Features
Temperature Compensated Reference
Monitors 3.0 V (MC341643) or 5.0 V (MC341645) Power Supplies
Precise Comparator Thresholds Guaranteed Over Temperature
Comparator Hysteresis Prevents Erratic Reset
Reset Output Capable of Sinking in Excess of 6.0 mA
Internal Clamp Diode for Discharging Delay Capacitor
Guaranteed Reset Operation With 1.0 V Input
Extremely Low Standby Current: As Low as 9.0 mA
Economical TO92 (TO226AA), TSOP5, SOIC8 and Micro8
Surface Mount Packages
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
PbFree Packages are Available
Input
Reset
http://onsemi.com
123 1 2 3
STRAIGHT LEAD
BULK PACK
BENT LEAD
TAPE & REEL
AMMO PACK
TO92 (TO226AA)
P SUFFIX
CASE 29
5
1
TSOP5
SN SUFFIX
CASE 483
8
1
SOIC8
D SUFFIX
CASE 751
8
1
Micro8
DM SUFFIX
CASE 846A
PIN CONNECTIONS
Reset 1
Input 2
N.C. 3
Ground 4
8 N.C.
7 N.C.
6 N.C.
5 N.C.
(Top View)
TSOP5
Pin 1. Ground
2. Input
3. Reset
4. NC
5. NC
TO92
Pin 1. Reset
2. Input
3. Ground
1.2 Vref
GND
Figure 1. Representative Block Diagram
This device contains 28 active transistors.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
=
Sink Only
Positive True Logic
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 8 of this data sheet.
© Semiconductor Components Industries, LLC, 2009
April, 2009 Rev. 18
www.DataSheet.in
1
Publication Order Number:
MC34164/D

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