MC34064, MC33064,
NCV33064
Undervoltage Sensing
Circuit
The MC34064 is an undervoltage sensing circuit specifically
designed for use as a reset controller in microprocessorbased
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systems. It offers the designer an economical solution for low voltage
detection with a single external resistor. The MC34064 features a
trimmedinpackage bandgap reference, and a comparator with
SOIC8
8
precise thresholds and built-in hysteresis to prevent erratic reset
D SUFFIX
operation. The open collector reset output is capable of sinking in
CASE 751
1
excess of 10 mA, and operation is guaranteed down to 1.0 V input with
low standby current. The MC devices are packaged in 3pin TO-92,
Micro8
8
micro size TSOP5, 8pin SOIC8 and Micro8 surface mount
DM SUFFIX
packages. The NCV device is packaged in SOIC8 and TO92.
CASE 846A
1
Applications include direct monitoring of the 5.0 V MPU/logic
power supply used in appliance, automotive, consumer and industrial
TSOP5
5
equipment.
SN SUFFIX
Features CASE 483
1
TrimmedInPackage Temperature Compensated Reference
Pin 1. Ground
Comparator Threshold of 4.6 V at 25C
2. Input
3. Reset
Precise Comparator Thresholds Guaranteed Over Temperature
4. NC
Comparator Hysteresis Prevents Erratic Reset 5. NC
Reset Output Capable of Sinking in Excess of 10 mA
Internal Clamp Diode for Discharging Delay Capacitor
TO92
Guaranteed Reset Operation with 1.0 V Input
P SUFFIX
CASE 29
Low Standby Current
Economical TO92, TSOP5, SOIC8 and Micro8 Surface Mount
Pin 1. Reset
2. Input
Packages 1
1
2
2
3. Ground
3
3
NCV Prefix for Automotive and Other Applications Requiring Site
STRAIGHT LEAD BENT LEAD
and Control Changes
BULK PACK TAPE & REEL
These Devices are PbFree and are RoHS Compliant
AMMO PACK
Input
Reset
PIN CONNECTIONS
Reset 1 8 N.C.
2 7
Input N.C.
3 6
N.C. N.C.
4 5
Ground N.C.
(Top View)
1.2 V
ref
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
GND
Sink Only
=
Positive True Logic
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 7 of this data sheet.
This device contains 21 active transistors.
Figure 1. Representative Block Diagram
Semiconductor Components Industries, LLC, 2016
1 Publication Order Number:
October, 2016 Rev. 19 MC34064/DMC34064, MC33064, NCV33064
MAXIMUM RATINGS
Rating Symbol Value Unit
Power Input Supply Voltage V 1.0 to 10 V
in
Reset Output Voltage V 10 V
O
Reset Output Sink Current (Note 2) I Internally mA
Sink
Limited
Clamp Diode Forward Current, Reset to Input Pin (Note 2) I 100 mA
F
Power Dissipation and Thermal Characteristics
P Suffix, Plastic Package
P 625 mW
D
Maximum Power Dissipation @ T = 25C
A
200 C/W
R
JA
Thermal Resistance, JunctiontoAir
D Suffix, Plastic Package
P 625 mW
D
Maximum Power Dissipation @ T = 25C
A
R 200 C/W
JA
Thermal Resistance, JunctiontoAir
DM Suffix, Plastic Package
P 520 mW
D
Maximum Power Dissipation @ T = 25C
R 240 C/W
A
JA
Thermal Resistance, JunctiontoAir
Operating Junction Temperature T +150 C
J
Operating Ambient Temperature T C
A
0 to +70
MC34064
40 to +85
MC33064
40 to +125
NCV33064
Storage Temperature Range T 65 to +150 C
stg
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. ESD data available upon request.
ELECTRICAL CHARACTERISTICS (For typical values T = 25C, for min/max values T is the operating ambient temperature range
A A
that applies [Notes 3 and 4] unless otherwise noted.)
Characteristics Symbol Min Typ Max Unit
COMPARATOR
Threshold Voltage V
High State Output (V Increasing) V 4.5 4.61 4.7
in IH
Low State Output (V Decreasing) V 4.5 4.59 4.7
in IL
Hysteresis V 0.01 0.02 0.05
H
RESET OUTPUT
Output Sink Saturation V V
OL
(V = 4.0 V, I = 8.0 mA) 0.46 1.0
in Sink
(V = 4.0 V, I = 2.0 mA) 0.15 0.4
in Sink
(V = 1.0 V, I = 0.1 mA) 0.1
in Sink
Output Sink Current (V , Reset = 4.0 V) I 10 27 60 mA
in Sink
Output Off-State Leakage (V , Reset = 5.0 V) I 0.02 0.5 A
in OH
Clamp Diode Forward Voltage, Reset to Input Pin (I = 10 mA) V 0.6 0.9 1.2 V
F F
TOTAL DEVICE
Operating Input Voltage Range V 1.0 to 6.5 V
in
Quiescent Input Current (V = 5.0 V) I 390 500 A
in in
2. Maximum package power dissipation limits must be observed.
3. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
4. T =0C for MC34064 T = +70C for MC34064
low high
40C for MC33064 +85C for MC33064
40C for NCV33064 +125C for NCV33064
5. NCV prefix is for automotive and other applications requiring site and change control.
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