© Semiconductor Components Industries, LLC, 2009
October, 2009 − Rev. 27
1Publication Order Number:
NCP300/D
NCP300, NCP301
Voltage Detector Series
The NCP300 and NCP301 series are second generation ultra−low
current voltage detectors. These devices are specifically designed for
use as reset controllers in portable microprocessor based systems
where extended battery life is paramount.
Each series features a highly accurate undervoltage detector with
hysteresis which prevents erratic system reset operation as the
comparator threshold is crossed.
The NCP300 series consists of complementary output devices that
are available with either an active high or active low reset output. The
NCP301 series has an open drain N−Channel output with either an
active high or active low reset output.
The NCP300 and NCP301 device series are available in the
Thin TSOP−5 package with standard undervoltage thresholds.
Additional thresholds that range from 0.9 V to 4.9 V in 100 mV steps
can be manufactured.
Features
•Quiescent Current of 0.5 mA Typical
•High Accuracy Undervoltage Threshold of 2.0%
•Wide Operating Voltage Range of 0.8 V to 10 V
•Complementary or Open Drain Reset Output
•Active Low or Active High Reset Output
•Specified Over the −40°C to +125°C Temperature Range
(Except for Voltage Options from 0.9 to 1.1 V)
•Pb−Free Packages are Available
Typical Applications
•Microprocessor Reset Controller
•Low Battery Detection
•Power Fail Indicator
•Battery Backup Detection
Figure 1. Representative Block Diagrams
This device contains 25 active transistors.
NCP301xSNxxT1
Open Drain Output Configuration
NCP300xSNxxT1
Complementary Output Configuration
Vref
Vref
Input
Reset Output
GND
3
1
2
Input Reset Output
GND
3
1
2
**
* The representative block diagrams depict active low reset output ‘L’ suffix devices. The comparator
inputs are interchanged for the active high output ‘H’ suffix devices.
See detailed ordering and shipping information in the ordering
information section on page 21 of this data sheet.
ORDERING INFORMATION
1
5
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THIN SOT23−5/
TSOP−5/SC59−5
CASE 483
PIN CONNECTIONS
1
3N.C.
Reset
Output
2
Input
Ground 4
N.C.
5
(Top View)
1
5
xxx AYWG
G
MARKING DIAGRAM
xxx = Specific Device Code
A = Assembly Location
Y = Year
W = Work Week
G= Pb−Free Package
(Note:Microdot may be in either location)
NCP300, NCP301
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2
MAXIMUM RATINGS
Rating Symbol Value Unit
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Input Power Supply Voltage (Pin 2)
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Vin
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
12
ÁÁÁÁ
ÁÁÁÁ
V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Output Voltage (Pin 1)
Complementary, NCP300
N−Channel Open Drain, NCP301
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
VOUT
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
−0.3 to Vin +0.3
−0.3 to 12
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Output Current (Pin 1) (Note 2)
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
IOUT
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
70
ÁÁÁÁ
ÁÁÁÁ
mA
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Thermal Resistance Junction−to−Air
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
RqJA
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
250
ÁÁÁÁ
ÁÁÁÁ
°C/W
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Maximum Junction Temperature All NCP Options
All NCV Options
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
TJ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
+125
+150
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
°C
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Operating Ambient Temperature Range
All Voltage Options: 0.9 V to 1.1 V
All Voltage Options: 1.2 V to 4.9 V
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
TA
TA
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
−40 to +85
−40 to +125
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
°C
°C
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Storage Temperature Range
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Tstg
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
−55 to +150
ÁÁÁÁ
ÁÁÁÁ
°C
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Moisture Sensitivity Level
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
MSL
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
1
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Latchup Performance (Note 3)
Positive
Negative
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ILATCHUP
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
200
200
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
mA
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. This device series contains ESD protection and exceeds the following tests:
Human Body Model 2000 V per MIL−STD−883, Method 3015.
Machine Model Method 200 V.
2. The maximum package power dissipation limit must not be exceeded.
PD+
TJ(max) *TA
RqJA
3. Maximum ratings per JEDEC standard JESD78.
NCP300, NCP301
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3
ELECTRICAL CHARACTERISTICS (For all values TA = −40°C to +125°C, unless otherwise noted.)
Characteristic Symbol Min Typ Max Unit
NCP300/1 − 0.9 / NCV300/1 − 0.9 (TA = 255C for voltage options from 0.9 to 1.1 V)
Detector Threshold (Pin 2, Vin Decreasing) VDET−0.882 0.900 0.918 V
Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.027 0.045 0.063 V
Supply Current (Pin 2)
(Vin = 0.8 V)
(Vin = 2.9 V)
Iin −
−
0.20
0.45
0.6
1.2
mA
Maximum Operating Voltage (Pin 2) Vin(max) − − 10 V
Minimum Operating Voltage (Pin 2)
(TA= −40°C to 85°C)
Vin(min) −
−
0.55
0.65
0.70
0.80
V
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.05 V, Vin = 0.70 V)
(VOUT = 0.50 V, Vin = 0.85 V)
0.01
0.05
0.05
0.50
−
−
P−Channel Source Current, NCP300
(VOUT = 2.4 V, Vin = 4.5 V) 1.0 6.0 −
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.5 V, Vin = 1.5 V) 1.05 2.5 −
P−Channel Source Current, NCP300
(VOUT = 0.4 V, Vin = 0.7 V)
(VOUT = GND, Vin = 0.8 V)
0.011
0.014
0.04
0.08
−
−
Propagation Delay Input to Output (Figure 2) ms
Complementary Output NCP300 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
97
77
−
300
N−Channel Open Drain NCP301 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
97
−
−
300
NCP300/1 − 1.8 / NCV300/1 − 1.8
Detector Threshold (Pin 2, Vin Decreasing) (TA= 25°C)
(TA= −40°C to 125°C)
VDET−1.764
1.746
1.80
−
1.836
1.854
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.054 0.090 0.126 V
Supply Current (Pin 2)
(Vin = 1.7 V)
(Vin = 3.8 V)
Iin −
−
0.23
0.48
0.7
1.3
mA
Maximum Operating Voltage (Pin 2) Vin(max) − − 10 V
Minimum Operating Voltage (Pin 2) (TA= 25°C)
(TA= −40°C to 125°C)
Vin(min) −
−
0.55
0.65
0.70
0.80
V
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.05V, Vin = 0.70 V)
(VOUT = 0.50V, Vin = 1.5 V)
0.01
1.0
0.05
2.0
−
−
P−Channel Source Current, NCP300
(VOUT = 2.4 V, Vin = 4.5 V) 1.0 6.0 −
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.5 V, Vin = 5.0 V) 6.3 11 −
P−Channel Source Current, NCP300
(VOUT = 0.4 V, Vin = 0.7 V)
(VOUT = GND, Vin = 1.5 V)
0.011
0.525
0.04
0.6
−
−
Propagation Delay Input to Output (Figure 2) ms
Complementary Output NCP300 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
73
94
−
300
NCP300, NCP301
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ELECTRICAL CHARACTERISTICS (continued) (For all values TA = −40°C to +125°C, unless otherwise noted.)
Characteristic UnitMaxTypMinSymbol
NCP300/1 − 1.8 / NCV300/1 − 1.8
N−Channel Open Drain NCP301 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
73
−
−
300
NCP300/1 − 2.0 / NCV300/1 − 2.0
Detector Threshold (Pin 2, Vin Decreasing) (TA= 25°C)
(TA= −40°C to 125°C)
VDET−1.96
1.94
2.00
−
2.04
2.06
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.06 0.10 0.14 V
Supply Current (Pin 2)
(Vin = 1.9 V)
(Vin = 4.0 V)
Iin −
−
0.23
0.48
0.8
1.3
mA
Maximum Operating Voltage (Pin 2) Vin(max) − − 10 V
Minimum Operating Voltage (Pin 2) (TA= 25°C)
(TA= −40°C to 125°C)
Vin(min) −
−
0.55
0.65
0.70
0.80
V
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.05V, Vin = 0.70V)
(VOUT = 0.50V, Vin = 1.5V)
0.01
1.0
0.14
3.5
−
−
P−Channel Source Current, NCP300
(VOUT = 2.4V, Vin = 4.5V) 1.0 9.7 −
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.5 V, Vin = 5.0 V) 6.3 11 −
P−Channel Source Current, NCP300
(VOUT = 0.4 V, Vin = 0.7 V)
(VOUT = GND, Vin = 1.5 V)
0.011
0.525
0.04
0.6
−
−
Propagation Delay Input to Output (Figure 2) ms
Complementary Output NCP300 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
55
108
−
300
N−Channel Open Drain NCP301 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
55
−
−
300
NCP300/1 − 2.2 / NCV300/1 − 2.2
Detector Threshold (Pin 2, Vin Decreasing) (TA= 25°C)
(TA= −40°C to 125°C)
VDET−2.156
2.134
2.2
−
2.244
2.266
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.066 0.110 0.154 V
Supply Current (Pin 2)
(Vin = 2.1 V)
(Vin = 4.2 V)
Iin −
−
0.23
0.48
0.8
1.3
mA
Maximum Operating Voltage (Pin 2) Vin(max) − − 10 V
Minimum Operating Voltage (Pin 2) (TA= 25°C)
(TA= −40°C to 125°C)
Vin(min) −
−
0.55
0.65
0.70
0.80
V
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.05V, Vin = 0.70V)
(VOUT = 0.50V, Vin = 1.5V)
0.01
1.0
0.14
3.5
−
−
P−Channel Source Current, NCP300
(VOUT = 2.4V, Vin = 4.5V) 1.0 9.7 −
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.5 V, Vin = 5.0 V) 6.3 11 −
NCP300, NCP301
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ELECTRICAL CHARACTERISTICS (continued) (For all values TA = −40°C to +125°C, unless otherwise noted.)
Characteristic UnitMaxTypMinSymbol
NCP300/1 − 2.2 / NCV300/1 − 2.2
P−Channel Source Current, NCP300
(VOUT = 0.4 V, Vin = 0.7 V)
(VOUT = GND, Vin = 1.5 V)
0.011
0.525
0.04
0.6
−
−
Propagation Delay Input to Output (Figure 2) ms
Complementary Output NCP300 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
55
108
−
300
N−Channel Open Drain NCP301 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
55
−
−
300
NCP300/1− 2.7 / NCV300/1− 2.7
Detector Threshold (Pin 2, Vin Decreasing) (TA= 25°C)
(TA= −40°C to 125°C)
VDET−2.646
2.619
2.700
−
2.754
2.781
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.081 0.135 0.189 V
Supply Current (Pin 2)
(Vin = 2.6 V)
(Vin = 4.7 V)
Iin −
−
0.25
0.50
0.8
1.3
mA
Maximum Operating Voltage (Pin 2) Vin(max) − − 10 V
Minimum Operating Voltage (Pin 2) (TA= 25°C)
(TA= −40°C to 125°C)
Vin(min) −
−
0.55
0.65
0.70
0.80
V
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.05V, Vin = 0.70V)
(VOUT = 0.50V, Vin = 1.5V)
0.01
1.0
0.14
3.5
−
−
P−Channel Source Current, NCP300
(VOUT = 2.4V, Vin = 4.5V) 1.0 9.7 −
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.5 V, Vin = 5.0 V) 6.3 11 −
P−Channel Source Current, NCP300
(VOUT = 0.4 V, Vin = 0.7 V)
(VOUT = GND, Vin = 1.5 V)
0.011
0.525
0.04
0.6
−
−
Propagation Delay Input to Output (Figure 2) ms
Complementary Output NCP300 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
55
115
−
300
N−Channel Open Drain NCP301 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
55
−
−
300
NCP300/1− 2.8 / NCV300/1− 2.8
Detector Threshold (Pin 2, Vin Decreasing) (TA= 25°C)
(TA= −40°C to 125°C)
VDET−2.744
2.716
2.8
−
2.856
2.884
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.084 0.14 0.196 V
Supply Current (Pin 2)
(Vin = 2.7 V)
(Vin = 4.8 V)
Iin −
−
0.25
0.5
0.8
1.3
mA
Maximum Operating Voltage (Pin 2) Vin(max) − − 10 V
Minimum Operating Voltage (Pin 2) (TA= 25°C)
(TA= −40°C to 125°C)
Vin(min) −
−
0.55
0.65
0.7
0.8
V
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.05V, Vin = 0.70V)
(VOUT = 0.50V, Vin = 1.5V)
0.01
1.0
0.14
3.5
−
−
NCP300, NCP301
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ELECTRICAL CHARACTERISTICS (continued) (For all values TA = −40°C to +125°C, unless otherwise noted.)
Characteristic UnitMaxTypMinSymbol
NCP300/1− 2.8 / NCV300/1− 2.8
P−Channel Source Current, NCP300
(VOUT = 2.4V, Vin = 4.5V) 1.0 9.7 −
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.5 V, Vin = 5.0 V) 6.3 11 −
P−Channel Source Current, NCP300
(VOUT = 0.4 V, Vin = 0.7 V)
(VOUT = GND, Vin = 1.5 V)
0.011
0.525
0.04
0.6
−
−
Propagation Delay Input to Output (Figure 2) ms
Complementary Output NCP300 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
55
115
−
300
N−Channel Open Drain NCP301 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
55
−
−
300
NCP300/1 − 3.0 / NCV300/1 − 3.0
Detector Threshold (Pin 2, Vin Decreasing) (TA= 25°C)
(TA= −40°C to 125°C)
VDET−2.94
2.91
3.00
−
3.06
3.09
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.09 0.15 0.21 V
Supply Current (Pin 2)
(Vin = 2.87 V)
(Vin = 5.0 V)
Iin −
−
0.25
0.50
0.9
1.3
mA
Maximum Operating Voltage (Pin 2) Vin(max) − − 10 V
Minimum Operating Voltage (Pin 2) (TA= 25°C)
(TA= −40°C to 125°C)
Vin(min) −
−
0.55
0.65
0.70
0.80
V
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.05V, Vin = 0.70V)
(VOUT = 0.50V, Vin = 1.5V)
0.01
1.0
0.14
3.5
−
−
P−Channel Source Current, NCP300
(VOUT = 2.4V, Vin = 4.5V) 1.0 9.7 −
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.5 V, Vin = 5.0 V) 6.3 11 −
P−Channel Source Current, NCP300
(VOUT = 0.4 V, Vin = 0.7 V)
(VOUT = GND, Vin = 1.5 V)
0.011
0.525
0.04
0.6
−
−
Propagation Delay Input to Output (Figure 2) ms
Complementary Output NCP300 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
49
115
−
300
N−Channel Open Drain NCP301 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
49
−
−
300
NCP300/1 − 4.5 / NCV300/1 − 4.5
Detector Threshold (Pin 2, Vin Decreasing) (TA= 25°C)
(TA= −40°C to 125°C)
VDET−4.410
4.365
4.500
−
4.590
4.635
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.135 0.225 0.315 V
Supply Current (Pin 2)
(Vin = 4.34 V)
(Vin = 6.5 V)
Iin −
−
0.33
0.52
1.0
1.4
mA
Maximum Operating Voltage (Pin 2) Vin(max) − − 10 V
NCP300, NCP301
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7
ELECTRICAL CHARACTERISTICS (continued) (For all values TA = −40°C to +125°C, unless otherwise noted.)
Characteristic UnitMaxTypMinSymbol
NCP300/1 − 4.5 / NCV300/1 − 4.5
Minimum Operating Voltage (Pin 2) (TA= 25°C)
(TA= −40°C to 125°C)
Vin(min) −
−
0.55
0.65
0.70
0.80
V
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.05V, Vin = 0.70V)
(VOUT = 0.50V, Vin = 1.5V)
0.01
1.0
0.05
2.0
−
−
P−Channel Source Current, NCP300
(VOUT = 5.9V, Vin = 8.0V) 1.5 10.5 −
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.5 V, Vin = 5.0 V) 6.3 11 −
P−Channel Source Current, NCP300
(VOUT = 0.4 V, Vin = 0.7 V)
(VOUT = GND, Vin = 1.5 V)
0.011
0.525
0.04
0.6
−
−
Propagation Delay Input to Output (Figure 2) ms
Complementary Output NCP300 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
49
130
−
300
N−Channel Open Drain NCP301 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
49
−
−
300
NCP300/1 − 4.7 / NCV300/1 − 4.7
Detector Threshold (Pin 2, Vin Decreasing) (TA= 25°C)
(TA= −40°C to 125°C)
VDET−4.606
4.559
4.700
−
4.794
4.841
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.141 0.235 0.329 V
Supply Current (Pin 2)
(Vin = 4.54 V)
(Vin = 6.7 V)
Iin −
−
0.34
0.53
1.0
1.4
mA
Maximum Operating Voltage (Pin 2) Vin(max) − − 10 V
Minimum Operating Voltage (Pin 2) (TA= 25°C)
(TA= −40°C to 125°C)
Vin(min) −
−
0.55
0.65
0.70
0.80
V
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.05V, Vin = 0.70V)
(VOUT = 0.50V, Vin = 1.5V)
0.01
1.0
0.05
2.0
−
−
P−Channel Source Current, NCP300
(VOUT = 5.9V, Vin = 8.0V) 1.5 10.5 −
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) IOUT mA
N−Channel Sink Current, NCP300, NCP301
(VOUT = 0.5 V, Vin = 5.0 V) 6.3 11 −
P−Channel Source Current, NCP300
(VOUT = 0.4 V, Vin = 0.7 V)
(VOUT = GND, Vin = 1.5 V)
0.011
0.525
0.04
0.6
−
−
Propagation Delay Input to Output (Figure 2) ms
Complementary Output NCP300 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
45
130
−
300
N−Channel Open Drain NCP301 Series
Output Transition, High to Low
Output Transition, Low to High
tpHL
tpLH
−
−
45
−
−
300
NCP300, NCP301
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Input Voltage, Pin 2
Reset Output Voltage, Pin 1
Figure 2. Propagation Delay Measurement Conditions
0.7
0 V
5 V
0 V
0.5 V
2.5 V
NCP300L
Complementary
NCP301L
Open Drain
tpLH tpHL
0.1 V
Reset Output Voltage, Pin 1
0 V
VDET+ + 2
VDET+ + 2
VDET+ + 2
2
NCP300 and NCP301 series are measured with a 10 pF capacitive load. NCP301 has an additional 470 k pull−up resistor connec-
ted from the reset output to +5.0 V. The reset output voltage waveforms are shown for the active low ‘L’ devices. The upper detector
threshold, VDET+ is the sum of the lower detector threshold, VDET− plus the input hysteresis, VHYS.
NCP300, NCP301
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Table 1. ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 − 4.9 V
NCP300 Series Detector Threshold
Detector Threshold
Hysteresis
Supply Current Nch Sink Current Pch Source
Current
Vin Low Vin High Vin Low Vin High
Part Number
VDET− (V) (Note 4) VHYS (V)
Iin (mA)
(Note 5)
Iin (mA)
(Note 6)
IOUT (mA)
(Note 7)
IOUT (mA)
(Note 8)
IOUT (mA)
(Note 9)
Min Typ Max Min Typ Max Typ Typ Typ Typ Typ
NCP300LSN09T1 0.882 0.9 0.918 0.027 0.045 0.063 0.20 0.45 0.05 0.5 2.0
NCP300LSN18T1 1.764 1.8 1.836 0.054 0.090 0.126 0.23 0.48
NCP300LSN185T1 1.813 1.85 1.887 0.056 0.093 0.130
NCP300LSN20T1 1.960 2.0 2.040 0.060 0.100 0.140
NCP300LSN25T1 2.45 2.5 2.55 0.075 0.125 0.175 0.25 0.50
NCP300LSN27T1 2.646 2.7 2.754 0.081 0.135 0.189 0.25 0.50
NCP300LSN28T1 2.744 2.8 2.856 0.084 0.140 0.196
NCP300LSN30T1 2.940 3.0 3.060 0.090 0.150 0.210
NCP300LSN33T1 3.234 3.3 3.366 0.099 0.165 0.231
NCP300LSN34T1 3.332 3.4 3.468 0.102 0.170 0.238
NCP300LSN44T1 4.312 4.4 4.488 0.132 0.220 0.308
NCP300LSN45T1 4.410 4.5 4.590 0.135 0.225 0.315 0.33 0.52
NCP300LSN46T1 4.508 4.6 4.692 0.138 0.230 0.322
NCP300LSN47T1 4.606 4.7 4.794 0.141 0.235 0.329 0.34 0.53
4. Values shown apply at +25°C only. For voltage options greater than 1.1 V, VDET− limits over operating temperature range (−40°C to +125°C)
are VNOM ±3%. For voltage options < 1.2 V, VDET− is guaranteed only at +25°C.
5. Condition 1: 0.9 − 2.9 V, Vin = VDET− − 0.10 V; 3.0 − 3.9 V, Vin = VDET− − 0.13 V; 4.0 − 4.9 V, Vin = VDET− − 0.16 V
6. Condition 2: 0.9 − 4.9 V, Vin = VDET− + 2.0 V
7. Condition 3: 0.9 − 4.9 V, Vin = 0.7 V, VOUT = 0.05 V, Active Low ‘L’ Suffix Devices
8. Condition 4: 0.9 − 1.0 V, Vin = 0.85 V, VOUT = 0.5 V; 1.1 − 1.5 V, Vin = 1.0 V, VOUT = 0.5 V; 1.6 − 4.9 V, Vin = 1.5 V, VOUT = 0.5 V,
Active Low ‘L’ Suffix Devices
9. Condition 5: 0.9 − 3.9 V, Vin = 4.5 V, VOUT = 2.4 V; 4.0 − 4.9 V, Vin = 8.0 V, VOUT = 5.9 V, Active Low ‘L’ Suffix Devices
Table 2. ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 − 4.9 V
NCP300 Series Detector Threshold
Detector Threshold
Hysteresis
Supply Current Nch Sink
Current
Pch Source Current
Vin Low Vin High Vin Low Vin High
Part Number
VDET− (V) (Note 10) VHYS (V)
Iin (mA)
(Note 11)
Iin (mA)
(Note 12)
IOUT (mA)
(Note 13)
IOUT (mA)
(Note 14)
IOUT (mA)
(Note 15)
Min Typ Max Min Typ Max Typ Typ Typ Typ Typ
NCP300HSN09T1 0.882 0.9 0.918 0.027 0.045 0.063 0.20 0.45 2.5 0.04 0.08
NCP300HSN18T1 1.764 1.8 1.836 0.054 0.090 0.126 0.23 0.48
NCP300HSN27T1 2.646 2.7 2.754 0.081 0.135 0.189 0.25 0.50
NCP300HSN30T1 2.940 3.0 3.060 0.090 0.150 0.210
NCP300HSN45T1 4.410 4.5 4.590 0.135 0.225 0.315 0.33 0.52
NCP300HSN47T1 4.606 4.7 4.794 0.141 0.235 0.329 0.34 0.53
10.Values shown apply at +25°C only. For voltage options greater than 1.1 V, VDET− limits over operating temperature range (−40°C to +125°C)
are VNOM ±3%. For voltage options < 1.2 V, VDET− is guaranteed only at +25°C.
11. Condition 1: 0.9 − 2.9 V, Vin = VDET− − 0.10 V; 3.0 − 3.9 V, Vin = VDET− − 0.13 V; 4.0 − 4.9 V, Vin = VDET− − 0.16 V
12.Condition 2: 0.9 − 4.9 V, Vin = VDET− + 2.0 V
13.Condition 3: 0.9 − 1.4 V, Vin = 1.5 V, VOUT = 0.5 V; 1.5 − 4.9 V, Vin = 5.0 V, VOUT = 0.5 V, Active High ‘H’ Suffix Devices
14.Condition 4: 0.9 − 4.9 V, Vin = 0.7 V, VOUT = 0.4 V, Active High ‘H’ Suffix Devices
15.Condition 5: 0.9 − 1.0 V, Vin = 0.8 V, VOUT = GND; 1.1 − 1.5 V, Vin = 1.0 V, VOUT = GND; 1.6 − 4.9 V, Vin = 1.5 V, VOUT = GND,
Active High ‘H’ Suffix Devices
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Table 3. ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 − 4.9 V
NCP301 Series Detector Threshold
Detector Threshold
Hysteresis
Supply Current Nch Sink Current
Vin Low Vin High Vin Low Vin High
Part Number
VDET− (V) (Note 16) VHYS (V)
Iin (mA)
(Note 16)
Iin (mA)
(Note 18)
IOUT (mA)
(Note 19)
IOUT (mA)
(Note 20)
Min Typ Max Min Typ Max Typ Typ Typ Typ
NCP301LSN09T1 0.882 0.9 0.918 0.027 0.045 0.063 0.20 0.45 0.05 0.5
NCP301LSN12T1 1.176 1.2 1.224 0.036 0.060 0.084
NCP301LSN16T1 1.568 1.6 1.632 0.048 0.080 0.112 2.0
NCP301LSN18T1 1.764 1.8 1.836 0.054 0.090 0.126 0.23 0.48
NCP301LSN20T1 1.960 2.0 2.040 0.060 0.100 0.140
NCP301LSN22T1 2.156 2.2 2.244 0.066 0.110 0.154
NCP301LSN24T1 2.352 2.4 2.448 0.072 0.120 0.168
NCP301LSN25T1 2.450 2.5 2.550 0.075 0.125 0.175
NCP301LSN26T1 2.548 2.6 2.652 0.078 0.130 0.182
NCP301LSN27T1 2.646 2.7 2.754 0.081 0.135 0.189 0.25 0.50
NCP301LSN28T1 2.744 2.8 2.856 0.084 0.140 0.196
NCP301LSN30T1 2.940 3.0 3.060 0.090 0.150 0.210
NCP301LSN31T1 3.038 3.1 3.162 0.093 0.155 0.217
NCP301LSN32T1 3.136 3.2 3.264 0.096 0.160 0.224
NCP301LSN33T1 3.234 3.3 3.366 0.099 0.165 0.231
NCP301LSN34T1 3.332 3.4 3.468 0.102 0.170 0.238
NCP301LSN36T1 3.528 3.6 3.672 0.108 0.180 0.252
NCP301LSN40T1 3.920 4.0 4.080 0.120 0.200 0.280
NCP301LSN42T1 4.116 4.2 4.284 0.126 0.210 0.294
NCP301LSN45T1 4.410 4.5 4.590 0.135 0.225 0.315 0.33 0.52
NCP301LSN46T1 4.508 4.6 4.692 0.138 0.230 0.322
NCP301LSN47T1 4.606 4.7 4.794 0.141 0.235 0.329 0.34 0.53
16.Values shown apply at +25°C only. For voltage options greater than 1.1 V, VDET− limits over operating temperature range (−40°C to +125°C)
are VNOM ±3%. For voltage options < 1.2 V, VDET− is guaranteed only at +25°C.
17.Condition 1: 0.9 − 2.9 V, Vin = VDET− − 0.10 V; 3.0 − 3.9 V, Vin = VDET− − 0.13 V; 4.0 − 4.9 V, Vin = VDET− − 0.16 V
18.Condition 2: 0.9 − 4.9 V, Vin = VDET− + 2.0 V
19.Condition 3: 0.9 − 4.9 V, Vin = 0.7 V, VOUT = 0.05 V, Active Low ‘L’ Suffix Devices
20.Condition 4: 0.9 − 1.0 V, Vin = 0.85 V, VOUT = 0.5 V; 1.1 − 1.5 V, Vin = 1.0 V, VOUT = 0.5 V; 1.6 − 4.9 V, Vin = 1.5 V, VOUT = 0.5 V,
Condition 4: Active Low ‘L’ Suffix Devices
Table 4. ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 − 4.9 V
NCP301 Series Detector Threshold
Detector Threshold
Hysteresis
Supply Current Nch
Sink Current
Vin Low Vin High
Part Number
VDET− (V) (Note 21) VHYS (V)
Iin (mA)
(Note 22)
Iin (mA)
(Note 23)
IOUT (mA)
(Note 24)
Min Typ Max Min Typ Max Typ Typ Typ
NCP301HSN09T1 0.882 0.9 0.918 0.027 0.045 0.063 0.20 0.45 2.5
NCP301HSN18T1 1.764 1.8 1.836 0.054 0.090 0.126
NCP301HSN22T1 2.156 2.2 2.244 0.066 0.110 0.154
NCP301HSN27T1 2.646 2.7 2.754 0.081 0.135 0.189 0.25 0.50
NCP301HSN30T1 2.940 3.0 3.060 0.090 0.150 0.210
NCP301HSN45T1 4.410 4.5 4.590 0.135 0.225 0.315 0.33 0.52
21.Values shown apply at +25°C only. For voltage options greater than 1.1 V, VDET− limits over operating temperature range (−40°C to
+125°C) are VNOM ±3%. For voltage options < 1.2 V, VDET− is guaranteed only at +25°C.
22.Condition 1: 0.9 − 2.9 V, Vin = VDET− − 0.10 V; 3.0 − 3.9 V, Vin = VDET− − 0.13 V; 4.0 − 4.9 V, Vin = VDET− − 0.16 V
23.Condition 2: 0.9 − 4.9 V, Vin = VDET− + 2.0 V
24.Condition 3: 0.9 − 1.4 V, Vin = 1.5 V, VOUT = 0.5 V; 1.5 − 4.9 V, Vin = 5.0 V, VOUT = 0.5 V, Active High ‘H’ Suffix Devices
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Figure 3. NCP300/1 Series 0.9 V
Input Current versus Input Voltage
Figure 4. NCP300/1 Series 2.7 V
Input Current versus Input Voltage
Figure 5. NCP300/1 Series 4.5 V
Input Current versus Input Voltage
Figure 6. NCP300/1 Series 0.9 V
Detector Threshold Voltage versus Temperature
Figure 7. NCP300/1 Series 2.7 V
Detector Threshold Voltage versus Temperature
Figure 8. NCP300/1 Series 4.5 V
Detector Threshold Voltage versus Temperature
VDET
, DETECTOR THRESHOLD VOLTAGE (V)
2.90
2.80
2.70
2.60
−50 −25 025 50 75 125
TA, AMBIENT TEMPERATURE (°C)
2.65
2.75
2.85
VDET+
VDET−
VDET
, DETECTOR THRESHOLD VOLTAGE (V)
−50
4.9
TA, AMBIENT TEMPERATURE (°C)
4.8
4.7
4.6
4.4
−25 025 50 75 125
4.5
4.3
VDET+
VDET−
Iin, INPUT CURRENT (mA)
TA = 25°C
02.0 6.0 8.0 12
2.0
1.5
1.0
0.5
0
Vin, INPUT VOLTAGE (V)
4.0
2.5
10.5
Iin, INPUT CURRENT (mA)
TA = 25°C
0 2.0 1210
2.0
1.5
1.0
0.5
0
Vin, INPUT VOLTAGE (V)
8.0
2.5
6.0
17.2
10
100
4.0
100
Iin, INPUT CURRENT (mA)
Vin, INPUT VOLTAGE (V)
TA = 25°C
0
0.1
0.2
0.3
0.4
0.5
0.6
0 2.0 4.0 6.0 8.0 12
0.7
0.8
0.9
1.0
10
−50
TA, AMBIENT TEMPERATURE (°C)
1.00
0.95
0.85
−25 025 50 75 100
0.90
0.80
VDET
, DETECTOR THRESHOLD VOLTAGE (V)
VDET+
VDET−
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Figure 9. NCP300L/1L Series 0.9 V
Reset Output Voltage versus Input Voltage Figure 10. NCP300L/1L Series 2.7 V
Reset Output Voltage versus Input Voltage
Figure 11. NCP300L/1L Series 4.5 V
Reset Output Voltage versus Input Voltage
Figure 12. NCP300H/1L Series 0.9 V
Reset Output Sink Current versus Input Voltage
Figure 13. NCP300H/1L Series 2.7 V
Reset Output Sink Current versus Input Voltage
Figure 14. NCP300H/1L Series 4.5 V
Reset Output Sink Current versus Input Voltage
IOUT
, OUTPUT SINK CURRENT (mA)
Vin, INPUT VOLTAGE (V)
0
10
6.0
2.0
0.5 1.0 1.5 2.0 2.5 3.0
4.0
0
8.0
TA = 25°C
TA = −40°C
TA = 125°C
VOUT = 0.5 V
12
IOUT
, OUTPUT SINK CURRENT (mA)
Vin, INPUT VOLTAGE (V)
01.0 2.0 3.0 4.0 5.0
20
5.0
0
10 TA = 25°C
TA = −40°C
TA = 125°C
VOUT = 0.5 V
15
VOUT
, OUTPUT VOLTAGE (V)
01.0 1.5 2.0 2.5
3.5
2.0
1.5
1.0
0.5
0
3.5
Vin, INPUT VOLTAGE (V)
0.5
2.5
TA = 25°C (301L only)
TA = −40°C (301L only)
TA = 125°C (301L only)
VOUT
, OUTPUT VOLTAGE (V)
01.0 2.0 3.0 4.0
5.0
4.0
3.0
2.0
1.0
0
5.0
6.0
6.0
Vin, INPUT VOLTAGE (V)
TA = −40°C (301L only)
3.0
3.0
TA = 25°C (301L only)
Vin, INPUT VOLTAGE (V)
00.2 0.4 0.6 0.8
1.0
0.8
0.6
0.4
0.2
0
1.0
VOUT
, OUTPUT VOLTAGE (V)
TA = −40°C (301L only)
TA = 25°C (301L only)
IOUT
, OUTPUT SINK CURRENT (mA)
Vin, INPUT VOLTAGE (V)
1.2
0.8
0.4
0
0.2
0.6
1.0
1.6
00.2 0.4 0.6 0.8 1.0
TA = 25°C
TA = −40°C
TA = 85°C
1.4 VOUT = 0.5 V
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Figure 15. NCP300L Series 0.9 V
Reset Output Source Current versus Input Voltage
Figure 16. NCP300L Series 2.7 V
Reset Output Source Current versus Input Voltage
Figure 17. NCP300L Series 4.5 V
Reset Output Source Current versus Input Voltage
Figure 18. NCP300H/1L Series 0.9 V
Reset Output Sink Current versus Output Voltage
Figure 19. NCP300H/1L Series 2.7 V
Reset Output Sink Current versus Output Voltage
Figure 20. NCP300H/1L Series 4.5 V
Reset Output Sink Current versus Output Voltage
0
35
25
15
5.0
1.0 2.0 3.0
10
0
4.0
20
30
VOUT
, OUTPUT VOLTAGE (V)
TA = 25°C
Vin = 4.0 V
Vin = 3.5 V
Vin = 3.0 V
Vin = 2.5 V
Vin = 2.0 V
Vin = 1.5 V
IOUT
, OUTPUT SINK CURRENT (mA)
IOUT
, OUTPUT SOURCE CURRENT (mA)
15
0
02.0 4.0 6.0 8.0 10
Vin, INPUT VOLTAGE (V)
5.0
10
20
VOUT = Vin −2.1 V
TA = 25°C
Vin −1.5 V
Vin −1.0 V
Vin −0.5 V
IOUT
, OUTPUT SINK CURRENT (mA)
15
10
5.0
0
00.5 1.0 1.5 2.0 2.5
VOUT
, OUTPUT VOLTAGE (V)
Vin = 2.5 V
Vin = 2.0 V
Vin = 1.5 V
TA = 25°C
IOUT
, OUTPUT SOURCE CURRENT (mA)
15
0
02.0 4.0 6.0 8.0 10
Vin, INPUT VOLTAGE (V)
5.0
10
20
VOUT = Vin −2.1 V
Vin −1.5 V
Vin −1.0 V
Vin −0.5 V
TA = 25°C
20
5.0
0
02.0 4.0 6.0 8.0 10
Vin, INPUT VOLTAGE (V)
10
15
VOUT = Vin −2.1 V
Vin −1.5 V
Vin −1.0 V
Vin −0.5 V
TA = 25°C
IOUT
, OUTPUT SOURCE CURRENT (mA)
IOUT
, OUTPUT SINK CURRENT (mA)
0
VOUT
, OUTPUT VOLTAGE (V)
0.2 0.4 0.6 0.8 1.0
1.5
0.5
0
1.0 Vin = 0.85 V
TA = 25°C
Vin = 0.7 V
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OPERATING DESCRIPTION
The NCP300 and NCP301 series devices are second
generation ultra−low current voltage detectors. Figures 20
and 21 show a timing diagram and a typical application.
Initially consider that input voltage Vin is at a nominal level
and it is greater than the voltage detector upper threshold
(VDET+), and the reset output (Pin 1) will be in the high state
for active low devices, or in the low state for active high
devices. If there is a power interruption and Vin becomes
significantly deficient, it will fall below the lower detector
threshold (VDET−). This sequence of events causes the Reset
output to be in the low state for active low devices, or in the
high state for active high devices. After completion of the
power interruption, Vin will again return to its nominal level
and become greater than the VDET+. The voltage detector
has built−in hysteresis to prevent erratic reset operation as
the comparator threshold is crossed.
Although these device series are specifically designed for
use as reset controllers in portable microprocessor based
systems, they offer a cost−effective solution in numerous
applications where precise voltage monitoring is required.
Figure 26 through Figure 33 shows various application
examples.
Figure 21. Timing Waveforms
Vin
VDET+
VDET−
Input Voltage, Pin 2
Vin
0 V
Reset Output (Active Low), Pin 1
Reset Output (Active High), Pin 1
Vin
0 V
VDET+
VDET−
VDET+
VDET−
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VCC TRANSIENT REJECTION
The NCP300 and NCP301 series provides accurate VCC
monitoring and reset timing during power−up,
power−down, and brownout/sag conditions, and rejects
negative glitches on the power supply line. Figure 22 shows
the maximum transient duration vs. maximum negative
excursion (overdrive) for glitch rejection. Any combination
of duration and overdrive which lies under the curve will not
generate a reset signal. A below−VCC condition (on the
right) is detected as a brownout or power−down. Typically,
any transient that goes 100 mV below the reset threshold and
lasts 5.0 ms or less will not cause a reset pulse.
Transient immunity can be improved by adding a
capacitor in close proximity to the VCC pin of the NCP30x.
VCC
VTH
Duration
Overdrive
Figure 22. Max Transient Duration vs. Max Overdrive
Figure 23.
RESET COMPARATOR OVERDRIVE
TRANSIENT DURATION
300
250
200
150
100
50
0
1501301109070503010
VTH = 4.90 V
VTH = 3.10 V
VTH = 1.60 V
FACTORS TO BE CONSIDERED FOR VOLTAGE
OPTION SELECTION
The following hysteresis graph depicts VDET−_min/max
and VDET+_min/max for an active low Reset device:
Output
Input
Figure 24.
VDET−_min VDET−_max VDET+_min VDET+_max
VDET−_typ
VDET+_min = VDET−_min + VHYS_min
VDET+_max = VDET−_max + VHYS_max
For selecting a voltage option in the NCP30X family,
three major factors should be considered:
1. VDET+_max: Maximum detector threshold voltage
for increasing Vin for the NCP30X device.
2. Vin_min: Minimum voltage output of the power
supply. This is also the input voltage to the
NCP30X device.
3. VCC_min: Minimum power supply voltage
specification for the device that is protected by the
NCP30X.
The VDET+_max for an NCP30X device is normally
calculated as follows:
VDET+_max +VDET−_max )VHYS_max (eq. 1)
Where:
VDET−_max = Maximum detector threshold voltage for
decreasing Vin
VHYS_max = Maximum detector threshold hysteresis
The above two parameters can be obtained directly from
the data sheet to figure out the VDET+_max.
In the NCP30X family, for a given VDET−_typ, which is the
typical detection voltage reflected in the part number, the
threshold values are designed to the following targets (at
25°C):
VDET−_min +VDET−_typ *2% (eq. 2)
VDET−_max +VDET−_typ )2% (eq. 3)
VHYS_typ +5% of VDET−_typ (eq. 4)
VHYS_min +VHYS_typ *40% (eq. 5)
VHYS_max +VHYS_typ )40% (eq. 6)
By simple mathematical calculation, combining
Equations 2 to 6, Equation 1 becomes:
VDET+_max +VDET−_typ 1.09 (eq. 7)
NCP300, NCP301
http://onsemi.com
16
So, VDET+_max can be easily figured out just using a single
variable VDET−_typ.
For example, for NCP300LSN18T1G VDET−_typ = 1.8 V;
then
VDET+_max +1.8 1.09 +1.962 V (eq. 8)
The NCP30X detection voltage option must be chosen such
that:
VCC_min tVDET+_max tVin_min (eq. 9)
The significance of VCC_min < VDET+_max is that it makes
sure the the reset from NCP30X remains asserted (in RESET
hold state) till after the power supply exceeds the VCC_min
requirement; this prevents incorrect device (uP) initiation.
Having VDET+_max < Vin_min makes sure that the
NCP30X is able to start up when Vin is at the Vin_min.
The theoretical ideal VDET−_typ voltage option to be
selected by the user, VDET−_typ_ideal, can be given by the
following formula:
VDET−_typ_ideal +ǒVin_min )VCC_minǓ
(2 1.09)
(eq. 10)
The following example shows how to select the device
voltage option in a real world application.
1. Power supply output specification: 3.3 V $3%
2. Microprocessor core voltage specification: 3.3 V
$5%
So, we have:
Vin_min +3.3 V *3% +3.201 V (eq. 11)
VCC_min +3.3 V *5% +3.135 V (eq. 12)
Then the ideal voltage option = (3.201 + 3.135) / (2 * 1.09)
= 2.9064 V
Therefore, a device voltage option of 2.9 V will be the right
choice.
PROPAGATION DELAY VARIATION
On the other hand (see above paragraph), a minimum
overdrive value from Vthreshold to VCC must be respected.
That means Vin (minimum value of VCC) must be higher
enough than VDET+ (VDET− + hysteresis) at the risk of
significantly increasing propagation delay. (Figure 25) This
propagation delay is temperature sensitive.
To avoid acceptable time response, a minimum 100 mV
difference between Vin and VDET+ must be selected.
Figure 25. tpLH and tpHL vs. Input Voltage
for the NCP301SNT1
tpLH
tpHL
5.0
4.54.03.5 5.
5
VDET+
TIME DELAY (ms)
100
0
300
200
500
400
600
3.0 3.168
Vin, PULSE HIGH INPUT VOLTAGE (V)
NCP300, NCP301
http://onsemi.com
17
APPLICATION CIRCUIT INFORMATION
Figure 26. Microprocessor Reset Circuit
2 Input
1
Reset Output
GND
NCP300
LSN27T1
Figure 27. Battery Charge Indicator
2 Input
1
Reset Output
GND GND
VDD
Reset
VDD
NCP300
Series
3
3
Microprocessor
* Required for
NCP301
Vin < 2.7 ON
Vin > 2.835 ON
To Additional Circuitry
*
2.85 V
2.70 V
Output
2 Input
1
Reset Output
GND
UV
NCP301
LSN23T1
Figure 28. Window Voltage Detector
3
Vsupply
Fault
2 Input
1
Reset Output
GND
OV
NCP301
HSN43T1
3
Input
UV
Fault
UV
Fault
OV
Fault
OV
Fault
OK OK
10 V
Active High
D
evice Thresholds
Active Low
D
evice Thresholds
1.0 V
The above circuit combines an active high and an active low reset output device to form
a window detector for monitoring battery or power supply voltages. When the input
voltage falls outside of the window established by the upper and lower device
thresholds, the LED will turn on indicating a fault. As the input voltage falls within the
window, increasing from 1.0 V and exceeding the active low device’s hysteresis
threshold, or decreasing from the peak towards 1.0 V and falling below the active high
device’s undervoltage threshold, the LED will turn off. The device thresholds shown can
be used for a single cell lithium−ion battery charge detector.
NCP300, NCP301
http://onsemi.com
18
APPLICATION CIRCUIT INFORMATION
Low state output if either power
supply is below the respective
undervoltage detector threshold
but greater than 1.0 V.
2
1
NCP301
LSN45T1
Figure 29. Dual Power Supply Undervoltage Supervision
3
Vsupply
2
1
NCP301
LSN30T1
3
3.3 V
5.0 V
Input
Reset Output
GND
Input
Reset Output
GND
Figure 30. Microprocessor Reset Circuit with Additional Hysteresis
2
1
NCP301
LSN27T1
3
VDD
Reset Output
Input
RH
RL
NCP301
LSN27T1
GND
NCP301
LSN27T1
GND
Reset
VDD
Microprocessor
Comparator hysteresis can be increased with the addition of
resistor RH. The hysteresis equations have been simplified and
do not account for the change of input current Iin as Vin crosses
the comparator threshold. The internal resistance, Rin is simply
calculated using Iin = 0.26 mA at 2.6 V.
Vin Decreasing:
Vth +ǒRH
Rin )1ǓǒVDET*Ǔ
Vin Increasing:
Vth +ǒRH
Rin øRL
)1ǓǒVDET*)VHYSǓ
VHYS = Vin Increasing − Vin Decreasing
Test Data
Vth Decreasing
(V)
Vth Increasing
(V)
VHYS
(V)
RH
(W)
RL
(kW)
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.70
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
2.84
2.87
2.88
2.91
2.90
2.94
2.98
2.97
3.04
3.15
ÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁÁ
0.135
0.17
0.18
0.21
0.20
0.24
0.28
0.27
0.34
0.45
ÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁÁ
0
100
100
100
220
220
220
470
470
470
ÁÁ
ÁÁ
ÁÁ
ÁÁ
ÁÁ
ÁÁ
ÁÁ
ÁÁ
−
10
6.8
4.3
10
6.8
4.3
10
6.8
4.3
NCP300, NCP301
http://onsemi.com
19
Figure 31. Simple Clock Oscillator
NCP301
LSN27T1 Reset Output
Input
R2 (See table)
NCP301
LSN27T1
GND
NCP300
HSN27T1
C
5.0 V
R1 = 100 kWC (nF) fOSC (kHz) IQ (mA)
0.01 10.4 18
0.068 9.8 18
1.0 6.18 21
Test Data
2
1
3
fOSC (kHz) IQ (mA)
6.0 30
5.7 30
3.6 29
10 1.41 21
100 0.27 22
1000 0.045 22
1.34 25
0.356 23
0.077 22
R2 = 82 kWR2 = 8.2 kW
Table values are for information only.
Figure 32. Microcontroller System Load Sensing
NCP301
LSN27T1
50 k
NCP301
LSN27T1
NCP301
LSN09T1
Vsupply
Load
Rsense Input
2
3GND
1
Reset Output
Microcontroller
GND
VDD
If:
ILoad t VDET −/Rsense
ILoad w (VDET −+VHYS)/Rsense
Then:
Reset Output = 0 V
Reset Output = VDD
This circuit monitors the current at the load. As
current flows through the load, a voltage drop with
respect to ground appears across Rsense where
Vsense = Iload * Rsense. The following conditions apply:
NCP300, NCP301
http://onsemi.com
20
Figure 33. LED Bar Graph Voltage Monitor
NCP301
LSN27T1
2
NCP301
LSN27T1
NCP301
LSN45T1
3
1
Vsupply
NCP301
LSN27T1
2
NCP301
LSN27T1
NCP301
LSN27T1
3
1
NCP301
LSN27T1
2
NCP301
LSN27T1
NCP301
LSN18T1
3
1
Input
GND
Reset
Output
Input
GND
Reset
Output
Input
GND
Reset
Output
Vin = 1.0 V to 10 V
A simple voltage monitor can be constructed by connecting several voltage detectors as shown above. Each LED will
sequentially turn on when the respective voltage detector threshold (VDET− +VHYS) is exceeded. Note that detector
thresholds (VDET−) that range from 0.9 V to 4.9 V in 100 mV steps can be manufactured.
NCP300, NCP301
http://onsemi.com
21
ORDERING INFORMATION
Device Threshold Voltage Output Type Reset Marking Package Shipping†
NCP300LSN09T1 0.9
CMOS Active
Low
SEJ TSOP−5
3000 / Tape & Reel
(7 in. Reel)
NCP300LSN09T1G TSOP−5
(Pb−Free)
NCP300LSN18T1 1.8 SFK TSOP−5
NCP300LSN18T1G TSOP−5
(Pb−Free)
NCP300LSN185T1 1.85 SRA TSOP−5
NCP300LSN185T1G TSOP−5
(Pb−Free)
NCP300LSN20T1 2.0 SHE TSOP−5
NCP300LSN20T1G TSOP−5
(Pb−Free)
NCV300LSN20T1G* SIM
NCP300LSN25T1G 2.5 RUM TSOP−5
(Pb−Free)
NCP300LSN27T1 2.7 SEE TSOP−5
NCP300LSN27T1G TSOP−5
(Pb−Free)
NCV300LSN27T1G* SIW
NCP300LSN28T1 2.8 SED TSOP−5
NCP300LSN28T1G TSOP−5
(Pb−Free)
NCV300LSN28T1G* SSL
NCP300LSN30T1 3.0 SEC TSOP−5
NCP300LSN30T1G TSOP−5
(Pb−Free)
NCV300LSN30T1G* SQV
NCP300LSN33T1 3.3 SKV TSOP−5
NCP300LSN33T1G TSOP−5
(Pb−Free)
NCP300LSN34T1 3.4 SKU TSOP−5
NCP300LSN34T1G TSOP−5
(Pb−Free)
NCV300LSN36T1G* 3.6 SKS
NCP300LSN44T1 4.4 SKK TSOP−5
NCP300LSN44T1G TSOP−5
(Pb−Free)
NCP300LSN45T1 4.5 SEA TSOP−5
NCP300LSN45T1G TSOP−5
(Pb−Free)
NCP300LSN46T1 4.6 SKJ TSOP−5
NCP300LSN46T1G TSOP−5
(Pb−Free)
NCP300LSN47T1 4.7 SDZ TSOP−5
NCP300LSN47T1G TSOP−5
(Pb−Free)
NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices,
ranging from 0.9 V to 4.9 V in 100 mV increments and NCP300/NCP301 active high output devices, ranging from 0.9 V to 4.9 V
in 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability. The electrical
characteristics of these additional devices are shown in Tables 1 through 4.
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Spe-
cifications Brochure, BRD8011/D.
*NCV prefix for automotive and other applications requiring site and control changes.
NCVxxx: Tlow = −40°C, Thigh = +125°C. Guaranteed by design.
NCP300, NCP301
http://onsemi.com
22
ORDERING INFORMATION
Device Shipping†
PackageMarkingResetOutput TypeThreshold Voltage
NCP300HSN09T1 0.9
CMOS Active
High
SDY TSOP−5
3000 / Tape & Reel
(7 in. Reel)
NCP300HSN09T1G TSOP−5
(Pb−Free)
NCP300HSN18T1 1.8 SFJ TSOP−5
NCP300HSN18T1G TSOP−5
(Pb−Free)
NCP300HSN27T1 2.7 SDU TSOP−5
NCP300HSN27T1G TSOP−5
(Pb−Free)
NCP300HSN30T1 3.0 SDS TSOP−5
NCP300HSN30T1G TSOP−5
(Pb−Free)
NCP300HSN45T1 4.5 SDQ TSOP−5
NCP300HSN45T1G TSOP−5
(Pb−Free)
NCP300HSN47T1 4.7 SDP TSOP−5
NCP300HSN47T1G TSOP−5
(Pb−Free)
NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices,
ranging from 0.9 V to 4.9 V in 100 mV increments and NCP300/NCP301 active high output devices, ranging from 0.9 V to 4.9 V
in 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability. The electrical
characteristics of these additional devices are shown in Tables 1 through 4.
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Spe-
cifications Brochure, BRD8011/D.
*NCV prefix for automotive and other applications requiring site and control changes.
NCVxxx: Tlow = −40°C, Thigh = +125°C. Guaranteed by design.
NCP300, NCP301
http://onsemi.com
23
ORDERING INFORMATION
Device Shipping†
PackageMarkingResetOutput TypeThreshold Voltage
NCP301LSN09T1 0.9
Open
Drain
Active
Low
SFF TSOP−5
3000 / Tape & Reel
(7 in. Reel)
NCP301LSN09T1G TSOP−5
(Pb−Free)
NCP301LSN12T1 1.2 SNN TSOP−5
NCP301LSN12T1G TSOP−5
(Pb−Free)
NCV301LSN12T1* SRK TSOP−5
NCV301LSN12T1G* TSOP−5
(Pb−Free)
NCP301LSN16T1 1.6 SNJ TSOP−5
NCP301LSN16T1G TSOP−5
(Pb−Free)
NCV301LSN16T1* SRL TSOP−5
NCV301LSN16T1G* TSOP−5
(Pb−Free)
NCP301LSN18T1 1.8 SFN TSOP−5
NCP301LSN18T1G TSOP−5
(Pb−Free)
NCP301LSN20T1 2.0 SFD TSOP−5
NCP301LSN20T1G TSOP−5
(Pb−Free)
NCV301LSN20T1G* SRM
NCP301LSN22T1 2.2 SNG TSOP−5
NCP301LSN22T1G TSOP−5
(Pb−Free)
NCV301LSN22T1* SUA TSOP−5
NCV301LSN22T1G* TSOP−5
(Pb−Free)
NCP301LSN24T1G 2.4 TAN TSOP−5
(Pb−Free)
NCP301LSN25T1 2.5 SNF TSOP−5
NCP301LSN25T1G TSOP−5
(Pb−Free)
NCV301LSN25T1G* SRN
NCP301LSN26T1 2.6 SNE TSOP−5
NCP301LSN26T1G TSOP−5
(Pb−Free)
NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices,
ranging from 0.9 V to 4.9 V in 100 mV increments and NCP300/NCP301 active high output devices, ranging from 0.9 V to 4.9 V
in 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability. The electrical
characteristics of these additional devices are shown in Tables 1 through 4.
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Spe-
cifications Brochure, BRD8011/D.
*NCV prefix for automotive and other applications requiring site and control changes.
NCVxxx: Tlow = −40°C, Thigh = +125°C. Guaranteed by design.
NCP300, NCP301
http://onsemi.com
24
ORDERING INFORMATION
Device Shipping†
PackageMarkingResetOutput TypeThreshold Voltage
NCP301LSN27T1G 2.7
Open
Drain
Active
Low
SFA TSOP−5
(Pb−Free)
3000 / Tape & Reel
(7 in. Reel)
NCP301LSN28T1 2.8 SEZ TSOP−5
NCP301LSN28T1G TSOP−5
(Pb−Free)
NCV301LSN28T1G* SRO TSOP−5
(Pb−Free)
NCP301LSN30T1G 3.0 SEY TSOP−5
(Pb−Free)
NCP301LSN31T1 3.1 SEW TSOP−5
NCP301LSN31T1G TSOP−5
(Pb−Free)
NCP301LSN32T1 3.2 SNC TSOP−5
NCP301LSN32T1G TSOP−5
(Pb−Free)
NCP301LSN33T1 3.3 SNB TSOP−5
NCP301LSN33T1G TSOP−5
(Pb−Free)
NCV301LSN33T1G* ACG TSOP−5
(Pb−Free)
NCP301LSN34T1 3.4 SNA TSOP−5
NCP301LSN34T1G TSOP−5
(Pb−Free)
NCP301LSN36T1G 3.6 SMY
NCP301LSN39T1G 3.9 SNA
NCP301LSN40T1 4.0 SMU TSOP−5
NCP301LSN40T1G TSOP−5
(Pb−Free)
NCV301LSN40T1* SRP TSOP−5
NCV301LSN40T1G* TSOP−5
(Pb−Free)
NCP301LSN42T1 4.2 SMS TSOP−5
NCP301LSN42T1G TSOP−5
(Pb−Free)
NCV301LSN42T1G* ACR
NCP301LSN45T1 4.5 SEV TSOP−5
NCP301LSN45T1G TSOP−5
(Pb−Free)
NCV301LSN45T1G* SRQ
NCP301LSN46T1 4.6 SMP TSOP−5
NCP301LSN46T1G TSOP−5
(Pb−Free)
NCP301LSN47T1 4.7 SEU TSOP−5
NCP301LSN47T1G TSOP−5
(Pb−Free)
NCV301LSN47T1G* SSJ
NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices,
ranging from 0.9 V to 4.9 V in 100 mV increments and NCP300/NCP301 active high output devices, ranging from 0.9 V to 4.9 V
in 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability. The electrical
characteristics of these additional devices are shown in Tables 1 through 4.
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Spe-
cifications Brochure, BRD8011/D.
*NCV prefix for automotive and other applications requiring site and control changes.
NCVxxx: Tlow = −40°C, Thigh = +125°C. Guaranteed by design.
NCP300, NCP301
http://onsemi.com
25
ORDERING INFORMATION
Device Threshold Voltage Output Type Reset Marking Package Shipping†
NCP301HSN09T1 0.9
Open
Drain
Active
High
SET TSOP−5
3000 / Tape & Reel
(7 in. Reel)
NCP301HSN09T1G TSOP−5
(Pb−Free)
NCP301HSN18T1 1.8 SFM TSOP−5
NCP301HSN18T1G TSOP−5
(Pb−Free)
NCP301HSN22T1 2.2 SMD TSOP−5
NCP301HSN22T1G TSOP−5
(Pb−Free)
NCP301HSN27T1 2.7 SEP TSOP−5
NCP301HSN27T1G TSOP−5
(Pb−Free)
NCV301HSN27T1G* SUD
NCP301HSN30T1 3.0 SEN TSOP−5
NCP301HSN30T1G TSOP−5
(Pb−Free)
NCP301HSN45T1 4.5 SEL TSOP−5
NCP301HSN45T1G TSOP−5
(Pb−Free)
NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices,
ranging from 0.9 V to 4.9 V in 100 mV increments and NCP300/NCP301 active high output devices, ranging from 0.9 V to 4.9 V
in 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability. The electrical
characteristics of these additional devices are shown in Tables 1 through 4.
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Spe-
cifications Brochure, BRD8011/D.
*NCV prefix for automotive and other applications requiring site and control changes.
NCVxxx: Tlow = −40°C, Thigh = +125°C. Guaranteed by design.
NCP300, NCP301
http://onsemi.com
26
PACKAGE DIMENSIONS
TSOP−5
CASE 483−02
ISSUE H
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. MAXIMUM LEAD THICKNESS INCLUDES
LEAD FINISH THICKNESS. MINIMUM LEAD
THICKNESS IS THE MINIMUM THICKNESS
OF BASE MATERIAL.
4. DIMENSIONS A AND B DO NOT INCLUDE
MOLD FLASH, PROTRUSIONS, OR GATE
BURRS.
5. OPTIONAL CONSTRUCTION: AN
ADDITIONAL TRIMMED LEAD IS ALLOWED
IN THIS LOCATION. TRIMMED LEAD NOT TO
EXTEND MORE THAN 0.2 FROM BODY.
DIM MIN MAX
MILLIMETERS
A3.00 BSC
B1.50 BSC
C0.90 1.10
D0.25 0.50
G0.95 BSC
H0.01 0.10
J0.10 0.26
K0.20 0.60
L1.25 1.55
M0 10
S2.50 3.00
123
54 S
A
G
L
B
D
H
C
J
__
0.7
0.028
1.0
0.039
ǒmm
inchesǓ
SCALE 10:1
0.95
0.037
2.4
0.094
1.9
0.074
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
0.20
5X
CAB
T0.10
2X
2X T0.20
NOTE 5
T
SEATING
PLANE
0.05
K
M
DETAIL Z
DETAIL Z
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
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USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5773−3850
NCP300/D
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Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada
Email: orderlit@onsemi.com
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