© Semiconductor Components Industries, LLC, 2016
October, 2016 − Rev. 19
1 Publication Order Number:
MC34164/D
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 built−in 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 3−pin TO−92 (TO−226AA), micro size
TSOP−5, 8−pin SOIC−8 and Micro8™ surface mount packages. The
NCV device is packaged in SOIC−8.
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 (MC34164−3) or 5.0 V (MC34164−5) 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 A
• Economical TO−92 (TO−226AA), TSOP−5, SOIC−8 and Micro8
Surface Mount Packages
• NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
• These Devices are Pb−Free and are RoHS Compliant
Figure 1. Representative Block Diagram
1.2 V
ref
Reset
GND
Input
=
Sink Only
Positive True Logic
This device contains 28 active transistors.
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
ORDERING INFORMATION
SOIC−8
D SUFFIX
CASE 751
8
1
Micro8
DM SUFFIX
CASE 846A
8
1
See general marking information in the device marking
section on page 8 of this data sheet.
DEVICE MARKING INFORMATION
(Top View)
3
1
N.C.
Ground
N.C.
N.C.
2
4
8
7
6
5
N.C.
N.C.
Input
Reset
PIN CONNECTIONS
TO−92 (TO−226AA)
P SUFFIX
CASE 29
www.onsemi.com
TSOP−5
SN SUFFIX
CASE 483
Pin 1. Ground
2. Input
3. Reset
4. NC
5. NC
TSOP−5
Pin 1. Reset
2. Input
3. Ground
TO−92
1
5
1
2
3
1
2
BENT LEAD
TAPE & REEL
AMMO PACK
STRAIGHT LEAD
BULK PACK
3