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NCV33064 Datasheet

UNDERVOLTAGE SENSING CIRCUIT

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NCV33064 pdf
MC34064, MC33064,
NCV33064
Undervoltage Sensing
Circuit
The MC34064 is an undervoltage sensing circuit specifically
designed for use as a reset controller in microprocessor−based
systems. It offers the designer an economical solution for low voltage
detection with a single external resistor. The MC34064 features a
trimmed−in−package bandgap reference, and a comparator with
precise thresholds and built-in hysteresis to prevent erratic reset
operation. The open collector reset output is capable of sinking in
excess of 10 mA, and operation is guaranteed down to 1.0 V input with
low standby current. The MC devices are packaged in 3−pin TO-92,
micro size TSOP−5, 8−pin SOIC−8 and Micro8t surface mount
packages. The NCV device is packaged in SOIC−8 and TO−92.
Applications include direct monitoring of the 5.0 V MPU/logic
power supply used in appliance, automotive, consumer and industrial
equipment.
Features
Trimmed−In−Package Temperature Compensated Reference
Comparator Threshold of 4.6 V at 25°C
Precise Comparator Thresholds Guaranteed Over Temperature
Comparator Hysteresis Prevents Erratic Reset
Reset Output Capable of Sinking in Excess of 10 mA
Internal Clamp Diode for Discharging Delay Capacitor
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Guaranteed Reset Operation with 1.0 V Input
Low Standby Current
Economical TO−92, TSOP−5, SOIC−8 and Micro8 Surface Mount
Packages
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
Pb−Free Packages are Available
Input 2 (2)
Reset
1 (1)
1.2 Vref
GND 3 (4)
=
Sink Only
Positive True Logic
Pin numbers adjacent to terminals are for the 3−pin TO−92 package.
Pin numbers in parenthesis are for the 8−lead packages.
This device contains 21 active transistors.
Figure 1. Representative Block Diagram
© Semiconductor Components Industries, LLC, 2005
February, 2005 − Rev. 12
1
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1
2
3
8
1
8
1
5
1
TO−92
P SUFFIX
CASE 29
Pin 1. Reset
2. Input
3. Ground
SOIC−8
D SUFFIX
CASE 751
Micro8
DM SUFFIX
CASE 846A
TSOP−5
SN SUFFIX
CASE 483
Pin 1. Reset
2. Input
3. Ground
4. NC
5. NC
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)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 7 of this data sheet.
Publication Order Number:
MC34064/D


  ON Semiconductor Electronic Components Datasheet  

NCV33064 Datasheet

UNDERVOLTAGE SENSING CIRCUIT

No Preview Available !

NCV33064 pdf
MC34064, MC33064, NCV33064
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Power Input Supply Voltage
Reset Output Voltage
Reset Output Sink Current (Note 2)
Vin −1.0 to 10
V
VO 10
V
ISink Internally mA
Limited
Clamp Diode Forward Current, Pin 1 to 2 (Note 2)
Power Dissipation and Thermal Characteristics
P Suffix, Plastic Package
Maximum Power Dissipation @ TA = 25°C
Thermal Resistance, Junction−to−Air
D Suffix, Plastic Package
Maximum Power Dissipation @ TA = 25°C
Thermal Resistance, Junction−to−Air
DM Suffix, Plastic Package
Maximum Power Dissipation @ TA = 25°C
Thermal Resistance, Junction−to−Air
IF 100 mA
PD 625 mW
RqJA 200 °C/W
PD 625 mW
RqJA 200 °C/W
PD 520 mW
RqJA 240 °C/W
Operating Junction Temperature
Operating Ambient Temperature
MC34064
MC33064
NCV33064
TJ +150 °C
TA °C
0 to +70
−40 to +85
−40 to +125
Storage Temperature Range
Tstg −65 to +150 °C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. ESD data available upon request.
ELECTRICAL CHARACTERISTICS (For typical values TA = 25°C, for min/max values TA is the operating ambient temperature range
that applies [Notes 3 and 4] unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max Unit
COMPARATOR
Threshold Voltage
High State Output (Vin Increasing)
Low State Output (Vin Decreasing)
Hysteresis
RESET OUTPUT
V
VIH 4.5 4.61 4.7
VIL 4.5 4.59 4.7
VH 0.01 0.02 0.05
Output Sink Saturation
(Vin = 4.0 V, ISink = 8.0 mA)
(Vin = 4.0 V, ISink = 2.0 mA)
(Vin = 1.0 V, ISink = 0.1 mA)
Output Sink Current (Vin, Reset = 4.0 V)
Output Off-State Leakage (Vin, Reset = 5.0 V)
Clamp Diode Forward Voltage, Pin 1 to 2 (IF = 10 mA)
TOTAL DEVICE
VOL V
− 0.46 1.0
− 0.15 0.4
− − 0.1
ISink
10
27
60 mA
IOH − 0.02 0.5 mA
VF 0.6 0.9 1.2 V
Operating Input Voltage Range
Vin 1.0 to 6.5
Quiescent Input Current (Vin = 5.0 V)
Iin − 390 500
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. Tlow = 0°C for MC34064
−40°C for MC33064
Thigh = +70°C for MC34064
+85°C for MC33064
−40°C for NCV33064
+125°C for NCV33064
5. NCV prefix is for automotive and other applications requiring site and change control.
V
mA
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2


Part Number NCV33064
Description UNDERVOLTAGE SENSING CIRCUIT
Maker ON Semiconductor
Total Page 12 Pages
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