ON NCP304 Voltage detector sery Datasheet

NCP304, NCP305
Voltage Detector Series
The NCP304 and NCP305 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 NCP304 series consists of complementary output devices that
are available with either an active high or active low reset output. The
NCP305 series has an open drain N−Channel output with an active low
reset output.
The NCP304 and NCP305 device series are available in the
SC−82AB package with standard undervoltage thresholds. Additional
thresholds that range from 0.9 V to 4.9 V in 100 mV steps can
be manufactured.
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1
SC−82AB
SQ SUFFIX
CASE 419C
PIN CONNECTIONS AND
MARKING DIAGRAM
Features
Reset
1
Output
Quiescent Current of 1.0 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
Pb−Free Packages are Available*
Vin
ORDERING INFORMATION
NCP305LSQxxT1
Open Drain Output Configuration
2
Input
Vref
N.C.
See detailed ordering and shipping information in the ordering
information section on page 20 of this data sheet.
NCP304xSQxxT1
Complementary Output Configuration
*
3
xxx = Specific Device Code
M = Date Code
G
= Pb−Free Package
Microprocessor Reset Controller
Low Battery Detection
Power Fail Indicator
Battery Backup Detection
Input
GND
(Top View)
Typical Applications
•
•
•
•
2
4
xxxm
G
•
•
•
•
•
•
1
4
2
1
Reset Output
Reset Output
Vref
4
GND
This device contains 38 active transistors.
GND
This device contains 37 active transistors.
* The representative block diagram depicts active low reset output ‘L’ suffix devices. The comparator
input is interchanged for the active high output ‘H’ suffix devices.
Figure 1. Representative Block Diagrams
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2005
March, 2005 − Rev. 16
1
Publication Order Number:
NCP304/D
NCP304, NCP305
MAXIMUM RATINGS (Note 1)
Rating
Symbol
Value
Unit
Input Power Supply Voltage (Pin 2)
Vin
12
V
Output Voltage (Pin 1)
Complementary, NCP304
N−Channel Open Drain, NCP305
VOUT
Output Current (Pin 1) (Note 2)
IOUT
70
mA
°C/W
Thermal Resistance Junction−to−Air
V
−0.3 to Vin+0.3
−0.3 to 12
RqJA
285
Maximum Junction Temperature
TJ
+125
°C
Storage Temperature Range
Tstg
−55 to +150
°C
Latchup Performance (Note 3)
Positive
Negative
ILATCHUP
mA
500
170
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. 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.
TJ(max)−TA
PD +
RqJA
3. Maximum Ratings per JEDEC standard JESD78.
ELECTRICAL CHARACTERISTICS (For all values TA = 25°C, unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
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
−
−
0.8
−
2.4
3.0
NCP304/5 − 0.9
Supply Current (Pin 2)
(Vin = 0.8 V)
(Vin = 2.9 V)
Iin
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, NCP304, NCP305
(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, NCP304
(VOUT = 2.4 V, Vin = 4.5 V)
1.0
2.0
−
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices)
IOUT
mA
N−Channel Sink Current, NCP304, NCP305
(VOUT = 0.5 V, Vin = 1.5 V)
1.05
2.5
−
P−Channel Source Current, NCP304
(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
4. In the case of CMOS Output Type: The time interval between the rising edge of VDD input pulse from 0.7 V to (+VDET) +2.0 V and output
voltage level becoming to VDD/2. In the case of N−Channel Open Drain Output Type: Output pin is pulled up with a resistance of 470 kW
to 5.0 V, the time interval between the rising edge of VDD input pulse from 0.7 V to (+VDET) +2.0 V and output voltage level becoming to
2.5 V.
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NCP304, NCP305
ELECTRICAL CHARACTERISTICS (continued) (For all values TA = 25°C, unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Complementary Output NCP304 Series
Output Transition, High to Low (Note 4)
Output Transition, Low to High (Note 4)
tpHL
tpLH
−
−
18
6.0
−
60
N−Channel Open Drain NCP305 Series
Output Transition, High to Low (Note 4)
Output Transition, Low to High (Note 4)
tpHL
tpLH
−
−
18
−
−
100
Detector Threshold (Pin 2, Vin Decreasing)
VDET−
1.764
1.80
1.836
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing)
VHYS
0.054
0.090
0.126
V
−
−
0.8
1.0
2.4
3.0
NCP304/5 − 0.9
NCP304/5 − 1.8
Supply Current (Pin 2)
(Vin = 1.7 V)
(Vin = 3.8 V)
Iin
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, NCP304, NCP305
(VOUT = 0.05 V, Vin = 0.70 V)
(VOUT = 0.50 V, Vin = 1.5 V)
0.01
1.0
0.05
2.0
−
−
P−Channel Source Current, NCP304
(VOUT = 2.4 V, Vin = 4.5 V)
1.0
2.0
−
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices)
IOUT
N−Channel Sink Current, NCP304, NCP305
(VOUT = 0.5 V, Vin = 5.0 V)
P−Channel Source Current, NCP304
(VOUT = 0.4 V, Vin = 0.7 V)
(VOUT = GND, Vin = 1.5 V)
mA
6.3
11
−
0.011
0.525
0.04
0.6
−
−
Propagation Delay Input to Output (Figure 2)
ms
Complementary Output NCP304 Series
Output Transition, High to Low (Note 4)
Output Transition, Low to High (Note 4)
tpHL
tpLH
−
−
14
15
−
60
N−Channel Open Drain NCP305 Series
Output Transition, High to Low (Note 4)
Output Transition, Low to High (Note 4)
tpHL
tpLH
−
−
14
−
−
100
Detector Threshold (Pin 2, Vin Decreasing)
VDET−
1.960
2.00
2.040
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing)
VHYS
0.06
0.10
0.14
V
−
−
0.9
1.1
2.7
3.3
NCP304/5 − 2.0
Supply Current (Pin 2)
(Vin = 1.9 V)
(Vin = 4.0 V)
Iin
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
4. In the case of CMOS Output Type: The time interval between the rising edge of VDD input pulse from 0.7 V to (+VDET) +2.0 V and output
voltage level becoming to VDD/2. In the case of N−Channel Open Drain Output Type: Output pin is pulled up with a resistance of 470 kW
to 5.0 V, the time interval between the rising edge of VDD input pulse from 0.7 V to (+VDET) +2.0 V and output voltage level becoming to
2.5 V.
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NCP304, NCP305
ELECTRICAL CHARACTERISTICS (continued) (For all values TA = 25°C, unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
N−Channel Sink Current, NCP304, NCP305
(VOUT = 0.05 V, Vin = 0.70 V)
(VOUT = 0.50 V, Vin = 1.5 V)
0.01
1.0
0.05
2.0
−
−
P−Channel Source Current, NCP304
(VOUT = 2.4 V, Vin = 4.5 V)
1.0
2.0
−
Unit
NCP304/5 − 2.0
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices)
IOUT
N−Channel Sink Current, NCP304, NCP305
(VOUT = 0.5 V, Vin = 5.0 V)
P−Channel Source Current, NCP304
(VOUT = 0.4 V, Vin = 0.7 V)
(VOUT = GND, Vin = 1.5 V)
mA
6.3
11
−
0.011
0.525
0.04
0.6
−
−
Propagation Delay Input to Output (Figure 2)
ms
Complementary Output NCP304 Series
Output Transition, High to Low (Note 4)
Output Transition, Low to High (Note 4)
tpHL
tpLH
−
−
13
15
−
60
N−Channel Open Drain NCP305 Series
Output Transition, High to Low (Note 4)
Output Transition, Low to High (Note 4)
tpHL
tpLH
−
−
13
−
−
100
Detector Threshold (Pin 2, Vin Decreasing)
VDET−
2.646
2.700
2.754
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing)
VHYS
0.081
0.135
0.189
V
−
−
0.9
1.1
2.7
3.3
NCP304/5 − 2.7
Supply Current (Pin 2)
(Vin = 2.6 V)
(Vin = 4.7 V)
Iin
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, NCP304, NCP305
(VOUT = 0.05 V, Vin = 0.70 V)
(VOUT = 0.50 V, Vin = 1.5 V)
0.01
1.0
0.05
2.0
−
−
P−Channel Source Current, NCP304
(VOUT = 2.4 V, Vin = 4.5 V)
1.0
2.0
−
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices)
IOUT
N−Channel Sink Current, NCP304, NCP305
(VOUT = 0.5 V, Vin = 5.0 V)
P−Channel Source Current, NCP304
(VOUT = 0.4 V, Vin = 0.7 V)
(VOUT = GND, Vin = 1.5 V)
mA
6.3
11
−
0.011
0.525
0.04
0.6
−
−
Propagation Delay Input to Output (Figure 2)
ms
Complementary Output NCP304 Series
Output Transition, High to Low (Note 4)
Output Transition, Low to High (Note 4)
tpHL
tpLH
−
−
12
19
−
60
N−Channel Open Drain NCP305 Series
Output Transition, High to Low (Note 4)
Output Transition, Low to High (Note 4)
tpHL
tpLH
−
−
12
−
−
100
4. In the case of CMOS Output Type: The time interval between the rising edge of VDD input pulse from 0.7 V to (+VDET) +2.0 V and output
voltage level becoming to VDD/2. In the case of N−Channel Open Drain Output Type: Output pin is pulled up with a resistance of 470 kW
to 5.0 V, the time interval between the rising edge of VDD input pulse from 0.7 V to (+VDET) +2.0 V and output voltage level becoming to
2.5 V.
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NCP304, NCP305
ELECTRICAL CHARACTERISTICS (continued) (For all values TA = 25°C, unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Detector Threshold (Pin 2, Vin Decreasing)
VDET−
2.842
2.900
2.958
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing)
VHYS
0.087
0.145
0.203
V
−
−
0.9
1.1
2.9
3.5
NCP304/5 − 2.9
Supply Current (Pin 2)
(Vin = 2.8 V)
(Vin = 4.9 V)
Iin
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, NCP304, NCP305
(VOUT = 0.05 V, Vin = 0.70 V)
(VOUT = 0.50 V, Vin = 1.5 V)
0.01
1.0
0.05
2.0
−
−
P−Channel Source Current, NCP304
(VOUT = 2.4 V, Vin = 4.5 V)
1.0
2.0
−
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices)
IOUT
N−Channel Sink Current, NCP304, NCP305
(VOUT = 0.5 V, Vin = 5.0 V)
P−Channel Source Current, NCP304
(VOUT = 0.4 V, Vin = 0.7 V)
(VOUT = GND, Vin = 1.5 V)
mA
6.3
11
−
0.011
0.525
0.04
0.6
−
−
Propagation Delay Input to Output (Figure 2)
ms
Complementary Output NCP304 Series
Output Transition, High to Low (Note 4)
Output Transition, Low to High (Note 4)
tpHL
tpLH
−
−
12
19
−
60
N−Channel Open Drain NCP305 Series
Output Transition, High to Low (Note 4)
Output Transition, Low to High (Note 4)
tpHL
tpLH
−
−
12
−
−
100
Detector Threshold (Pin 2, Vin Decreasing)
VDET−
2.94
3.00
3.06
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing)
VHYS
0.09
0.15
0.21
V
−
−
1.0
1.2
3.0
3.6
NCP304/5 − 3.0
Supply Current (Pin 2)
(Vin = 2.87 V)
(Vin = 5.0 V)
Iin
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, NCP304, NCP305
(VOUT = 0.05 V, Vin = 0.70 V)
(VOUT = 0.50 V, Vin = 1.5 V)
0.01
1.0
0.05
2.0
−
−
P−Channel Source Current, NCP304
(VOUT = 2.4 V, Vin = 4.5 V)
1.0
2.0
−
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices)
IOUT
N−Channel Sink Current, NCP304, NCP305
(VOUT = 0.5 V, Vin = 5.0 V)
mA
6.3
11
−
4. In the case of CMOS Output Type: The time interval between the rising edge of VDD input pulse from 0.7 V to (+VDET) +2.0 V and output
voltage level becoming to VDD/2. In the case of N−Channel Open Drain Output Type: Output pin is pulled up with a resistance of 470 kW
to 5.0 V, the time interval between the rising edge of VDD input pulse from 0.7 V to (+VDET) +2.0 V and output voltage level becoming to
2.5 V.
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NCP304, NCP305
ELECTRICAL CHARACTERISTICS (continued) (For all values TA = 25°C, unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
0.011
0.525
0.04
0.6
−
−
Unit
NCP304/5 − 3.0
P−Channel Source Current, NCP304
(VOUT = 0.4 V, Vin = 0.7 V)
(VOUT = GND, Vin = 1.5 V)
Propagation Delay Input to Output (Figure 2)
ms
Complementary Output NCP304 Series
Output Transition, High to Low (Note 4)
Output Transition, Low to High (Note 4)
tpHL
tpLH
−
−
12
19
−
60
N−Channel Open Drain NCP305 Series
Output Transition, High to Low (Note 4)
Output Transition, Low to High (Note 4)
tpHL
tpLH
−
−
12
−
−
100
Detector Threshold (Pin 2, Vin Decreasing)
VDET−
4.410
4.500
4.590
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing)
VHYS
0.135
0.225
0.315
V
−
−
−
−
3.0
3.9
NCP304/5 − 4.5
Supply Current (Pin 2)
(Vin = 4.34 V)
(Vin = 6.5 V)
Iin
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, NCP304, NCP305
(VOUT = 0.05 V, Vin = 0.70 V)
(VOUT = 0.50 V, Vin = 1.5 V)
0.01
1.0
0.05
2.0
−
−
P−Channel Source Current, NCP304
(VOUT = 5.9 V, Vin = 8.0 V)
1.5
3.0
−
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices)
IOUT
N−Channel Sink Current, NCP304, NCP305
(VOUT = 0.5 V, Vin = 5.0 V)
P−Channel Source Current, NCP304
(VOUT = 0.4 V, Vin = 0.7 V)
(VOUT = GND, Vin = 1.5 V)
mA
6.3
11
−
0.011
0.525
0.04
0.6
−
−
Propagation Delay Input to Output (Figure 2)
ms
Complementary Output NCP304 Series
Output Transition, High to Low (Note 4)
Output Transition, Low to High (Note 4)
tpHL
tpLH
−
−
10
21
−
60
N−Channel Open Drain NCP305 Series
Output Transition, High to Low (Note 4)
Output Transition, Low to High (Note 4)
tpHL
tpLH
−
−
10
−
−
100
Detector Threshold (Pin 2, Vin Decreasing)
VDET−
4.606
4.70
4.794
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing)
VHYS
0.141
0.235
0.329
V
−
−
1.1
1.3
3.0
3.9
−
−
10
NCP304/5 − 4.7
Supply Current (Pin 2)
(Vin = 4.54 V)
(Vin = 6.7 V)
Iin
Maximum Operating Voltage (Pin 2)
Vin(max)
mA
V
4. In the case of CMOS Output Type: The time interval between the rising edge of VDD input pulse from 0.7 V to (+VDET) +2.0 V and output
voltage level becoming to VDD/2. In the case of N−Channel Open Drain Output Type: Output pin is pulled up with a resistance of 470 kW
to 5.0 V, the time interval between the rising edge of VDD input pulse from 0.7 V to (+VDET) +2.0 V and output voltage level becoming to
2.5 V.
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NCP304, NCP305
ELECTRICAL CHARACTERISTICS (continued) (For all values TA = 25°C, unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Vin(min)
−
−
0.55
0.65
0.70
0.80
V
NCP304/5 − 4.7
Minimum Operating Voltage (Pin 2)
(TA = −40°C to 85°C)
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices)
IOUT
mA
N−Channel Sink Current, NCP304, NCP305
(VOUT = 0.05 V, Vin = 0.70 V)
(VOUT = 0.50 V, Vin = 1.5 V)
0.01
1.0
0.05
2.0
−
−
P−Channel Source Current, NCP304
(VOUT = 5.9 V, Vin = 8.0 V)
1.5
3.0
−
Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices)
IOUT
N−Channel Sink Current, NCP304, NCP305
(VOUT = 0.5 V, Vin = 5.0 V)
P−Channel Source Current, NCP304
(VOUT = 0.4 V, Vin = 0.7 V)
(VOUT = GND, Vin = 1.5 V)
mA
6.3
11
−
0.011
0.525
0.04
0.6
−
−
Propagation Delay Input to Output (Figure 2)
ms
Complementary Output NCP304 Series
Output Transition, High to Low (Note 4)
Output Transition, Low to High (Note 4)
tpHL
tpLH
−
−
10
21
−
60
N−Channel Open Drain NCP305 Series
Output Transition, High to Low (Note 4)
Output Transition, Low to High (Note 4)
tpHL
tpLH
−
−
10
−
−
100
4. In the case of CMOS Output Type: The time interval between the rising edge of VDD input pulse from 0.7 V to (+VDET) +2.0 V and output
voltage level becoming to VDD/2. In the case of N−Channel Open Drain Output Type: Output pin is pulled up with a resistance of 470 kW
to 5.0 V, the time interval between the rising edge of VDD input pulse from 0.7 V to (+VDET) +2.0 V and output voltage level becoming to
2.5 V.
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NCP304, NCP305
VDET+ + 2
Input Voltage, Pin 2
0.7
0V
5V
Reset Output Voltage, Pin 1
2.5 V
NCP305L
Open Drain
0.5 V
0V
VDET+ + 2
Reset Output Voltage, Pin 1
VDET+ + 2
2
0V
NCP304L
Complementary
0.1 V
tpLH
tpHL
NCP304 and NCP305 series are measured with a 10 pF capacitive load. NCP305 has an additional 470 k pullup resistor connected
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.
Figure 2. Propagation Delay Measurement Conditions
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NCP304, NCP305
Table 1. NCP304 SERIES ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 − 4.9 V
Detector Threshold
N−Channel Sink Current
Detector Threshold
Hysteresis
Vin Low
Vin High
Vin Low
Vin High
P−Channel
Source
Current
VHYS (V)
Iin
(mA)
(Note 5)
Iin
(mA)
(Note 6)
IOUT
(mA)
(Note 7)
IOUT
(mA)
(Note 8)
IOUT
(mA)
(Note 9)
VDET− (V)
Supply Current
Min
Typ
Max
Min
Typ
Max
Typ
Typ
Typ
Typ
Typ
NCP304LSQ09T1
0.882
0.9
0.918
0.027
0.045
0.063
0.8
0.9
0.05
0.5
2.0
NCP304LSQ10T1
0.980
1.0
1.020
0.030
0.050
0.070
NCP304LSQ11T1
1.078
1.1
1.122
0.033
0.055
0.077
NCP304LSQ12T1
1.176
1.2
1.224
0.036
0.060
0.084
NCP304LSQ13T1
1.274
1.3
1.326
0.039
0.065
0.091
NCP304LSQ14T1
1.372
1.4
1.428
0.042
0.070
0.098
NCP304LSQ15T1
1.470
1.5
1.530
0.045
0.075
0.105
NCP304LSQ16T1
1.568
1.6
1.632
0.048
0.080
0.112
NCP304LSQ17T1
1.666
1.7
1.734
0.051
0.085
0.119
NCP304LSQ18T1
1.764
1.8
1.836
0.054
0.090
0.126
NCP304LSQ19T1
1.862
1.9
1.938
0.057
0.095
0.133
NCP304LSQ20T1
1.960
2.0
2.040
0.060
0.100
0.140
NCP304LSQ21T1
2.058
2.1
2.142
0.063
0.105
0.147
NCP304LSQ22T1
2.156
2.2
2.244
0.066
0.110
0.154
NCP304LSQ23T1
2.254
2.3
2.346
0.069
0.115
0.161
NCP304LSQ24T1
2.352
2.4
2.448
0.072
0.120
0.168
NCP304LSQ25T1
2.450
2.5
2.550
0.075
0.125
0.175
NCP304LSQ26T1
2.548
2.6
2.652
0.078
0.130
0.182
NCP304LSQ27T1
2.646
2.7
2.754
0.081
0.135
0.189
NCP304LSQ28T1
2.744
2.8
2.856
0.084
0.140
0.196
NCP304LSQ29T1
2.842
2.9
2.958
0.087
0.145
0.203
NCP304LSQ30T1
2.940
3.0
3.060
0.090
0.150
0.210
NCP304LSQ31T1
3.038
3.1
3.162
0.093
0.155
0.217
NCP304LSQ32T1
3.136
3.2
3.264
0.096
0.160
0.224
NCP304LSQ33T1
3.234
3.3
3.366
0.099
0.165
0.231
NCP304LSQ34T1
3.332
3.4
3.468
0.102
0.170
0.238
NCP304LSQ35T1
3.430
3.5
3.570
0.105
0.175
0.245
NCP304LSQ36T1
3.528
3.6
3.672
0.108
0.180
0.252
NCP304LSQ37T1
3.626
3.7
3.774
0.111
0.185
0.259
NCP304LSQ38T1
3.724
3.8
3.876
0.114
0.190
0.266
NCP304LSQ39T1
3.822
3.9
3.978
0.117
0.195
0.273
NCP304LSQ40T1
3.920
4.0
4.080
0.120
0.200
0.280
NCP304LSQ41T1
4.018
4.1
4.182
0.123
0.205
0.287
NCP304LSQ42T1
4.116
4.2
4.284
0.126
0.210
0.294
NCP304LSQ43T1
4.214
4.3
4.386
0.129
0.215
0.301
NCP304LSQ44T1
4.312
4.4
4.488
0.132
0.220
0.308
NCP304LSQ45T1
4.410
4.5
4.590
0.135
0.225
0.315
NCP304LSQ46T1
4.508
4.6
4.692
0.138
0.230
0.322
NCP304LSQ47T1
4.606
4.7
4.794
0.141
0.235
0.329
NCP304LSQ48T1
4.704
4.8
4.896
0.144
0.240
0.336
NCP304LSQ49T1
4.802
4.9
4.998
0.147
0.245
0.343
Part Number
5.
6.
7.
8.
Condition 1:
Condition 2:
Condition 3:
Condition 4:
Condition 4:
9. Condition 5:
1.0
1.0
2.0
0.9
1.1
1.0
1.2
1.1
1.3
3.0
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
0.9 − 4.9 V, Vin = VDET− + 2.0 V
0.9 − 4.9 V, Vin = 0.7 V, VOUT = 0.05 V, Active Low ‘L’ Suffix Devices
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
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
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9
NCP304, NCP305
Table 2. NCP304 SERIES ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 − 4.9 V
Detector Threshold
P−Channel
Source Current
Detector Threshold
Hysteresis
Vin Low
Vin High
N−Channel
Sink
Current
VHYS (V)
Iin
(mA)
(Note 10
)
Iin
(mA)
(Note 11)
IOUT
(mA)
(Note 12)
IOUT
(mA)
(Note 13)
IOUT
(mA)
(Note 14)
VDET− (V)
Supply Current
Vin Low
Vin High
Min
Typ
Max
Min
Typ
Max
Typ
Typ
Typ
Typ
Typ
NCP304HSQ09T1
0.882
0.9
0.918
0.027
0.045
0.063
0.8
0.9
2.5
0.04
0.08
NCP304HSQ10T1
0.980
1.0
1.020
0.030
0.050
0.070
NCP304HSQ11T1
1.078
1.1
1.122
0.033
0.055
0.077
NCP304HSQ12T1
1.176
1.2
1.224
0.036
0.060
0.084
NCP304HSQ13T1
1.274
1.3
1.326
0.039
0.065
0.091
NCP304HSQ14T1
1.372
1.4
1.428
0.042
0.070
0.098
NCP304HSQ15T1
1.470
1.5
1.530
0.045
0.075
0.105
NCP304HSQ16T1
1.568
1.6
1.632
0.048
0.080
0.112
NCP304HSQ17T1
1.666
1.7
1.734
0.051
0.085
0.119
NCP304HSQ18T1
1.764
1.8
1.836
0.054
0.090
0.126
NCP304HSQ19T1
1.862
1.9
1.938
0.057
0.095
0.133
NCP304HSQ20T1
1.960
2.0
2.040
0.060
0.100
0.140
NCP304HSQ21T1
2.058
2.1
2.142
0.063
0.105
0.147
NCP304HSQ22T1
2.156
2.2
2.244
0.066
0.110
0.154
NCP304HSQ23T1
2.254
2.3
2.346
0.069
0.115
0.161
NCP304HSQ24T1
2.352
2.4
2.448
0.072
0.120
0.168
NCP304HSQ25T1
2.450
2.5
2.550
0.075
0.125
0.175
NCP304HSQ26T1
2.548
2.6
2.652
0.078
0.130
0.182
NCP304HSQ27T1
2.646
2.7
2.754
0.081
0.135
0.189
NCP304HSQ28T1
2.744
2.8
2.856
0.084
0.140
0.196
NCP304HSQ29T1
2.842
2.9
2.958
0.087
0.145
0.203
NCP304HSQ30T1
2.940
3.0
3.060
0.090
0.150
0.210
NCP304HSQ31T1
3.038
3.1
3.162
0.093
0.155
0.217
NCP304HSQ32T1
3.136
3.2
3.264
0.096
0.160
0.224
NCP304HSQ33T1
3.234
3.3
3.366
0.099
0.165
0.231
NCP304HSQ34T1
3.332
3.4
3.468
0.102
0.170
0.238
NCP304HSQ35T1
3.430
3.5
3.570
0.105
0.175
0.245
NCP304HSQ36T1
3.528
3.6
3.672
0.108
0.180
0.252
NCP304HSQ37T1
3.626
3.7
3.774
0.111
0.185
0.259
NCP304HSQ38T1
3.724
3.8
3.876
0.114
0.190
0.266
NCP304HSQ39T1
3.822
3.9
3.978
0.117
0.195
0.273
NCP304HSQ40T1
3.920
4.0
4.080
0.120
0.200
0.280
NCP304HSQ41T1
4.018
4.1
4.182
0.123
0.205
0.287
NCP304HSQ42T1
4.116
4.2
4.284
0.126
0.210
0.294
NCP304HSQ43T1
4.214
4.3
4.386
0.129
0.215
0.301
NCP304HSQ44T1
4.312
4.4
4.488
0.132
0.220
0.308
NCP304HSQ45T1
4.410
4.5
4.590
0.135
0.225
0.315
NCP304HSQ46T1
4.508
4.6
4.692
0.138
0.230
0.322
NCP304HSQ47T1
4.606
4.7
4.794
0.141
0.235
0.329
NCP304HSQ48T1
4.704
4.8
4.896
0.144
0.240
0.336
NCP304HSQ49T1
4.802
4.9
4.998
0.147
0.245
0.343
Part Number
1.0
0.18
11
0.6
0.9
1.1
1.0
1.2
1.1
1.3
10. 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
11. Condition 2: 0.9 − 4.9 V, Vin = VDET− + 2.0 V
12. 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
13. Condition 4: 0.9 − 4.9 V, Vin = 0.7 V, VOUT = 0.4 V, Active High ‘H’ Suffix Devices
14. 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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10
NCP304, NCP305
Table 3. NCP305 SERIES ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 − 4.9 V
Detector Threshold
Supply Current
N−Channel
Sink Current
Detector Threshold
Hysteresis
Vin Low
Vin High
Vin Low
Vin High
VHYS (V)
Iin
(mA)
(Note 15)
Iin
(mA)
(Note 16)
IOUT
(mA)
(Note 17)
IOUT
(mA)
(Note 18)
VDET− (V)
Min
Typ
Max
Min
Typ
Max
Typ
Typ
Typ
Typ
NCP305LSQ09T1
0.882
0.9
0.918
0.027
0.045
0.063
0.8
0.9
0.05
0.5
NCP305LSQ10T1
0.980
1.0
1.020
0.030
0.050
0.070
NCP305LSQ11T1
1.078
1.1
1.122
0.033
0.055
0.077
NCP305LSQ12T1
1.176
1.2
1.224
0.036
0.060
0.084
NCP305LSQ13T1
1.274
1.3
1.326
0.039
0.065
0.091
NCP305LSQ14T1
1.372
1.4
1.428
0.042
0.070
0.098
NCP305LSQ15T1
1.470
1.5
1.530
0.045
0.075
0.105
NCP305LSQ16T1
1.568
1.6
1.632
0.048
0.080
0.112
NCP305LSQ17T1
1.666
1.7
1.734
0.051
0.085
0.119
NCP305LSQ18T1
1.764
1.8
1.836
0.054
0.090
0.126
NCP305LSQ19T1
1.862
1.9
1.938
0.057
0.095
0.133
NCP305LSQ20T1
1.960
2.0
2.040
0.060
0.100
0.140
NCP305LSQ21T1
2.058
2.1
2.142
0.063
0.105
0.147
NCP305LSQ22T1
2.156
2.2
2.244
0.066
0.110
0.154
NCP305LSQ23T1
2.254
2.3
2.346
0.069
0.115
0.161
NCP305LSQ24T1
2.352
2.4
2.448
0.072
0.120
0.168
NCP305LSQ25T1
2.450
2.5
2.550
0.075
0.125
0.175
NCP305LSQ26T1
2.548
2.6
2.652
0.078
0.130
0.182
NCP305LSQ27T1
2.646
2.7
2.754
0.081
0.135
0.189
NCP305LSQ28T1
2.744
2.8
2.856
0.084
0.140
0.196
NCP305LSQ29T1
2.842
2.9
2.958
0.087
0.145
0.203
NCP305LSQ30T1
2.940
3.0
3.060
0.090
0.150
0.210
NCP305LSQ31T1
3.038
3.1
3.162
0.093
0.155
0.217
NCP305LSQ32T1
3.136
3.2
3.264
0.096
0.160
0.224
NCP305LSQ33T1
3.234
3.3
3.366
0.099
0.165
0.231
NCP305LSQ34T1
3.332
3.4
3.468
0.102
0.170
0.238
NCP305LSQ35T1
3.430
3.5
3.570
0.105
0.175
0.245
NCP305LSQ36T1
3.528
3.6
3.672
0.108
0.180
0.252
NCP305LSQ37T1
3.626
3.7
3.774
0.111
0.185
0.259
NCP305LSQ38T1
3.724
3.8
3.876
0.114
0.190
0.266
NCP305LSQ39T1
3.822
3.9
3.978
0.117
0.195
0.273
NCP305LSQ40T1
3.920
4.0
4.080
0.120
0.200
0.280
NCP305LSQ41T1
4.018
4.1
4.182
0.123
0.205
0.287
NCP305LSQ42T1
4.116
4.2
4.284
0.126
0.210
0.294
NCP305LSQ43T1
4.214
4.3
4.386
0.129
0.215
0.301
NCP305LSQ44T1
4.312
4.4
4.488
0.132
0.220
0.308
NCP305LSQ45T1
4.410
4.5
4.590
0.135
0.225
0.315
NCP305LSQ46T1
4.508
4.6
4.692
0.138
0.230
0.322
NCP305LSQ47T1
4.606
4.7
4.794
0.141
0.235
0.329
NCP305LSQ48T1
4.704
4.8
4.896
0.144
0.240
0.336
NCP305LSQ49T1
4.802
4.9
4.998
0.147
0.245
0.343
Part Number
1.0
1.0
2.0
0.9
1.1
1.0
1.2
1.1
1.3
15. 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
16. Condition 2: 0.9 − 4.9 V, Vin = VDET− + 2.0 V
17. Condition 3: 0.9 − 4.9 V, Vin = 0.7 V, VOUT = 0.05 V, Active Low ‘L’ Suffix Devices
18. 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
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11
0.98
0.96
VDET+
0.94
0.92
VDET−
0.90
0.88
0.86
−50
−25
0
25
75
50
100
VDET, DETECTOR THRESHOLD VOLTAGE (V)
VDET, DETECTOR THRESHOLD VOLTAGE (V)
NCP304, NCP305
3.00
2.95
2.90
VDET+
2.85
2.80
2.75
VDET−
2.70
2.65
2.60
−50
Figure 3. NCP304/5 Series 0.9 V
Detector Threshold Voltage vs. Temperature
50
75
100
Figure 4. NCP304/5 Series 2.7 V
Detector Threshold Voltage vs. Temperature
1.0
4.9
VOUT, OUTPUT VOLTAGE (V)
VDET, DETECTOR THRESHOLD VOLTAGE (V)
25
TA, AMBIENT TEMPERATURE (°C)
TA, AMBIENT TEMPERATURE (°C)
4.8
VDET+
4.7
4.6
VDET−
4.5
4.4
4.3
−50
0
75
0.8
0.6
0.4
TA = −30°C
TA = 25°C
TA = 85°C
0.2
0
TA, AMBIENT TEMPERATURE (°C)
0.4
0.6
Vin, INPUT VOLTAGE (V)
Figure 5. NCP304/5 Series 4.5 V
Detector Threshold Voltage vs. Temperature
Figure 6. NCP304L/5L Series 0.9 V
Reset Output Voltage vs. Input Voltage
−25
25
50
100
0
0.2
0.8
1.0
7.0
VOUT, OUTPUT OUTPUT (V)
3.0
VOUT, OUTPUT OUTPUT (V)
0
−25
2.5
2.0
1.5
1.0
TA = −30°C
TA = 25°C
TA = 85°C
0.5
0
6.0
5.0
4.0
3.0
2.0
1.0
0
0
1.0
1.5
0.5
2.0
Vin, INPUT VOLTAGE (V)
2.5
3.0
TA = −30°C
TA = 25°C
TA = 85°C
0
1.0
2.0
4.0
3.0
Vin, INPUT VOLTAGE (V)
5.0
Figure 8. NCP304L/5L Series 4.5 V
Reset Output Voltage vs. Input Voltage
Figure 7. NCP304L/5L Series 2.7 V
Reset Output Voltage vs. Input Voltage
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12
6.0
NCP304, NCP305
1.2
IOUT, OUTPUT SINK CURRENT (mA)
VOUT, OUTPUT VOLTAGE (V)
3.0
2.5
2.0
1.5
1.0
TA = −30°C
TA = 25°C
0.5
0
TA = 85°C
0
0.5
1.0
1.5
2.0
2.5
Vin = 0.85 V
0.8
0.6
0.4
Vin = 0.7 V
0.2
0
3.0
0
1.0
0.8
Figure 9. NCP304H/5H Series 2.7 V
Reset Output Voltage vs. Input Voltage
Figure 10. NCP304H/5L Series 0.9 V
Reset Output Sink Current vs. Output Voltage
IOUT, OUTPUT SINK CURRENT (mA)
TA = 25°C
Vin = 2.5 V
12
10
8.0
Vin = 2.0V
6.0
4.0
Vin = 1.5 V
2.0
0
0
0.5
1.0
1.5
Vin = 4.0 V
25
Vin = 3.5 V
20
Vin = 3.0 V
15
Vin = 2.5 V
10
Vin = 2.0 V
Vin = 1.5 V
5.0
0
2.5
2.0
TA = 25°C
30
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
VOUT, OUTPUT VOLTAGE (V)
VOUT, OUTPUT VOLTAGE (V)
Figure 11. NCP304H/5L Series 2.7 V
Reset Output Sink Current vs. Output Voltage
Figure 12. NCP304H/5L Series 4.5 V
Reset Output Sink Current vs. Output Voltage
2.5
2.0
Vin = 2.5 V
2.0
Iin, INPUT CURRENT (mA)
IOUT, OUTPUT SOURCE CURRENT (mA)
0.6
VOUT, OUTPUT VOLTAGE (V)
35
14
TA = 25°C
1.5
1.5
Vin = 2.0 V
1.0
1.0
0.5
Vin = 1.5 V
0.5
0
0.4
0.2
Vin, INPUT VOLTAGE (V)
16
IOUT, OUTPUT SINK CURRENT (mA)
TA = 25°C
1.0
0
0.5
1.0
1.5
2.0
2.5
0
0
VOUT, OUTPUT VOLTAGE (V)
4.0
6.0
Vin, INPUT VOLTAGE (V)
Figure 13. NCP304H Series 2.7 V Reset Output
Source Current vs. Output Voltage
Figure 14. NCP304/5 Series 0.9 V
Input Current vs. Input Voltage
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13
2.0
8.0
10
NCP304, NCP305
2
2.0
TA = 25°C
Iin, INPUT CURRENT (mA)
Iin, INPUT CURRENT (mA)
TA = 25°C
1.5
1.0
0.5
0
1.5
1.0
0.5
0
0
2.0
4.0
6.0
Vin, INPUT VOLTAGE (V)
10
8.0
0
Figure 15. NCP304/5 Series 2.7 V
Input Current vs. Input Voltage
IOUT, OUTPUT SINK CURRENT (mA)
IOUT, OUTPUT SINK CURRENT (mA)
1.0
0.8
0.6
TA = 85°C
0.4
TA = 25°C
0.2
TA = −30°C
0
0.2
0.4
0.6
1.0
0.8
10
6.0
5.0
TA = −30°C
4.0
TA = 25°C
TA = 85°C
3.0
2.0
1.0
0
0
0.5
1.0
1.5
2.0
2.5
Vin, INPUT VOLTAGE (V)
Vin, INPUT VOLTAGE (V)
Figure 17. NCP304H/5L Series 0.9 V
Reset Output Sink Current vs. Input Voltage
Figure 18. NCP304H/5L Series 2.7 V
Reset Output Sink Current vs. Input Voltage
3.0
90
IOUT, OUTPUT SINK CURRENT (mA)
12
IOUT, OUTPUT SINK CURRENT (mA)
8.0
7.0
1.2
10
TA = −30°C
8.0
TA = 25°C
6.0
TA = 85°C
4.0
2.0
0
6.0
4.0
Vin, INPUT VOLTAGE (V)
Figure 16. NCP304/5 Series 4.5 V
Input Current vs. Input Voltage
1.4
0
2.0
0
1.0
2.0
3.0
5.0
4.0
80
70
60
Vout = Vin − 2.1 V
= Vin − 1.5 V
50
= Vin − 1.0 V
= Vin − 0.5 V
40
30
20
10
0
0
2.0
4.0
6.0
8.0
Vin, INPUT VOLTAGE (V)
Vin, INPUT VOLTAGE (V)
Figure 19. NCP304H/5L Series 4.5 V
Reset Output Sink Current vs. Input Voltage
Figure 20. NCP304H/5H Series 2.7 V
Reset Output Sink Current vs. Input Voltage
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14
10
12
IOUT, OUTPUT SOURCE CURRENT (mA)
IOUT, OUTPUT SOURCE CURRENT (mA)
NCP304, NCP305
VOUT = Vin −2.1 V
TA = 25°C
10
Vin −1.5 V
8.0
Vin −1.0 V
6.0
4.0
Vin − 0.5 V
2.0
0
0
2.0
4.0
6.0
8.0
10
12
VOUT = Vin −2.1 V
TA = 25°C
10
Vin −1.5 V
8.0
Vin −1.0 V
6.0
4.0
Vin − 0.5 V
2.0
0
0
Vin, INPUT VOLTAGE (V)
IOUT, OUTPUT SOURCE CURRENT (mA)
IOUT, OUTPUT SOURCE CURRENT (mA)
VOUT = Vin −2.1 V
TA = 25°C
Vin −1.5 V
8.0
Vin −1.0 V
4.0
Vin − 0.5 V
2.0
0
0
2.0
4.0
6.0
10
Figure 22. NCP304H Series 2.7 V
Reset Output Source Current vs. Input Voltage
12
6.0
8.0
6.0
Vin, INPUT VOLTAGE (V)
Figure 21. NCP304H Series 0.9 V
Reset Output Source Current vs. Input Voltage
10
4.0
2.0
8.0
10
4.0
TA = −30°C
3.0
TA = 25°C
2.0
TA = 85°C
1.0
0
0
0.5
1.0
1.5
2.0
2.5
3.0
Vin, INPUT VOLTAGE (V)
Vin, INPUT VOLTAGE (V)
Figure 24. NCP304H Series 2.7 V
Reset Output Source Current vs. Input Voltage
Figure 23. NCP304H Series 4.5 V
Reset Output Source Current vs. Input Voltage
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15
NCP304, NCP305
OPERATING DESCRIPTION
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 32 shows various application
examples.
The NCP304 and NCP305 series devices are second
generation ultra−low current voltage detectors. Figures 25
and 26 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
Input Voltage, Pin 2
Reset Output (Active Low), Pin 1
Vin
VDET+
VDET−
Vin
VDET+
VDET−
0V
Reset Output (Active High), Pin 1
Vin
VDET+
VDET−
0V
Figure 25. Timing Waveforms
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16
NCP304, NCP305
APPLICATION CIRCUIT INFORMATION
VDD
2
NCP304
Series
3
VDD
*
Input
1
Microprocessor
Reset
Reset Output
* Required for
GN
D
GND
NCP305
Figure 26. Microprocessor Reset Circuit
2.85 V
2.70 V
Vin < 2.7 ON
2
Input
NCP304
LSQ27T1
1
To Additional Circuitry
Reset Output
Vin > 2.835 ON
3
GN
D
Figure 27. Battery Charge Indicator
Vsupply
5.0 V
2
Input
1
NCP305
LSQ45T1
Reset Output
3
GN
D
2
Input
3.3 V
1
NCP305
LSQ30T1
3
Reset Output
GN
D
Low state output if either
power supply is below the
respective undervoltage detector threshold but greater
than 1.0 V.
Figure 28. Dual Power Supply Undervoltage Supervision
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17
NCP304, NCP305
VDD
RH
2
VDD
Input
RL
1
NCP301
NCP305
LSQ27T1
LSN27T1
3
Reset
Reset Output
Microprocessor
GN
D
GN
D
Figure 29. Microprocessor Reset Circuit with Additional Hysteresis
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:
V th +
ǒRR
H
in
Ǔ
) 1 ǒV DET*Ǔ
Vin Increasing:
V th +
ǒ
Ǔ
RH
) 1 ǒV DET* ) V HYSǓ
R in ø R L
VHYS = Vin Increasing − Vin Decreasing
Test Data
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁ
ÁÁÁ
ÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Vth Decreasing
(mV)
Vth Increasing
(mV)
VHYS
(mV)
RH
(W)
RL
(kW)
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.84
2.87
2.88
2.91
2.90
2.94
2.98
2.70
3.04
3.15
0.135
0.17
0.19
0.21
0.20
0.24
0.28
0.27
0.34
0.35
0
100
100
100
220
220
220
470
470
470
−
10
6.8
4.3
10
6.8
4.3
10
6.8
4.3
5.0 V
100 k
Test Data
C
2
Input
NCP301
NCP302
HSQ27T1
LSN27T1
3
C (mF)
fOSC (kHz)
IQ (mA)
0.01
2590
21.77
1
0.1
490
21.97
Reset Output
1.0
52
22.07
82 k
GN
D
Figure 30. Simple Clock Oscillator
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18
NCP304, NCP305
Vsupply
Load
Rsense
2
3
VDD
Input
NCP301
NCP305
LSQ09T1
LSN27T1
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:
If:
ILoad t VDET − /Rsense
ILoad w (VDET −+VHYS)/Rsense
50 k
1
Then:
Reset Output = 0 V
Reset Output = VDD
Microcontroller
Reset Output
GND
GND
Figure 31. Microcontroller Systems Load Sensing
Vsupply
2
Input
NCP305
NCP301
LSQ45T1
LSN27T1
3
GND
2
Input
NCP305
NCP301
LSQ27T1
LSN27T1
3
GND
2
Input
1
Reset
Output
1
Reset
Output
Vin = 1.0 V to 10 V
NCP305
NCP301
LSQ18T1
LSN27T1
3
1
Reset
Output
GND
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.
Figure 32. LED Bar Graph
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19
NCP304, NCP305
ORDERING INFORMATION
Device
Threshold
Voltage
Output
Type
Reset
Marking
Package
NCP304LSQ09T1
0.9
SHG
SC−82AB
NCP304LSQ09T1G
0.9
SHGG
SC−82AB
(Pb−Free)
NCP304LSQ18T1
1.8
SGX
SC−82AB
NCP304LSQ20T1
2.0
SGV
SC−82AB
NCP304LSQ23T1
2.3
SGR
SC−82AB
NCP304LSQ25T1
2.5
SGP
SC−82AB
NCP304LSQ25T1G
2.5
SGPG
SC−82AB
(Pb−Free)
NCP304LSQ27T1
2.7
SGN
SC−82AB
NCP304LSQ29T1
2.9
SGK
SC−82AB
NCP304LSQ29T1G
2.9
SGKG
SC−82AB
(Pb−Free)
NCP304LSQ30T1
3.0
SGJ
SC−82AB
NCP304LSQ30T1G
3.0
SGJG
SC−82AB
(Pb−Free)
CMOS
Active
Low
NCP304LSQ33T1
3.3
SGG
SC−82AB
NCP304LSQ37T1
3.7
SGB
SC−82AB
NCP304LSQ38T1
3.8
SGA
SC−82AB
NCP304LSQ40T1
4.0
SFY
SC−82AB
NCP304LSQ42T1
4.2
SFU
SC−82AB
NCP304LSQ43T1
4.3
SFV
SC−82AB
NCP304LSQ43T1G
4.3
SFV G
SC−82AB
(Pb−Free)
NCP304LSQ45T1
4.5
SFS
SC−82AB
NCP304LSQ45T1G
4.5
SFSG
SC−82AB
(Pb−Free)
NCP304LSQ46T1
4.6
SFR
SC−82AB
NCP304LSQ47T1
4.7
SFQ
SC−82AB
NCP304LSQ47T1G
4.7
SFQG
SC−82AB
(Pb−Free)
NCP304HSQ09T1
0.9
SNQ
SC−82AB
NCP304HSQ18T1
1.8
SNZ
SC−82AB
NCP304HSQ20T1
2.0
SOB
SC−82AB
NCP304HSQ20T1G
2.0
SOBG
SC−82AB
(Pb−Free)
CMOS
Active
High
NCP304HSQ22T1
2.2
SOD
SC−82AB
NCP304HSQ27T1
2.7
SOI
SC−82AB
NCP304HSQ29T1
2.9
SOK
SC−82AB
NCP304HSQ29T1G
2.9
SOKG
SC−82AB
(Pb−Free)
Shipping†
3000 / Tape & Reel
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 NCP304 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 and 2.
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.
http://onsemi.com
20
NCP304, NCP305
ORDERING INFORMATION
Device
Threshold
Voltage
Output
Type
Reset
Marking
Package
NCP304HSQ30T1
3.0
SOL
SC−82AB
NCP304HSQ30T1G
3.0
SOLG
SC−82AB
(Pb−Free)
NCP304HSQ45T1
4.5
SPA
SC−82AB
NCP304HSQ45T1G
4.5
SPAG
SC−82AB
(Pb−Free)
NCP304HSQ47T1
4.7
SPC
SC−82AB
NCP304HSQ47T1G
4.7
SPCG
SC−82AB
(Pb−Free)
NCP305LSQ09T1
0.9
SIZ
SC−82AB
NCP305LSQ09T1G
0.9
SIZG
SC−82AB
(Pb−Free)
NCP305LSQ11T1
1.1
SIX
SC−82AB
NCP305LSQ11T1G
1.1
SIXG
SC−82AB
(Pb−Free)
NCP305LSQ15T1
1.5
SIS
SC−82AB
NCP305LSQ16T1
1.6
SIR
SC−82AB
NCP305LSQ16T1G
1.6
SIRG
SC−82AB
(Pb−Free)
NCP305LSQ17T1
1.7
SIQ
SC−82AB
NCP305LSQ17T1G
1.7
SIQG
SC−82AB
(Pb−Free)
NCP305LSQ18T1
1.8
SIP
SC−82AB
NCP305LSQ20T1
2.0
SIN
SC−82AB
NCP305LSQ22T1
2.2
NCP305LSQ22T1G
2.2
NCP305LSQ23T1
CMOS
Active
High
SIK
SC−82AB
SIKG
SC−82AB
(Pb−Free)
2.3
SIJ
SC−82AB
NCP305LSQ24T1
2.4
SII
SC−82AB
NCP305LSQ25T1
2.5
SIH
SC−82AB
NCP305LSQ27T1
2.7
SIF
SC−82AB
NCP305LSQ27T1G
2.7
SIFG
SC−82AB
(Pb−Free)
NCP305LSQ28T1
2.8
SIE
SC−82AB
NCP305LSQ28T1G
2.8
SIEG
SC−82AB
(Pb−Free)
NCP305LSQ29T1
2.9
SID
SC−82AB
NCP305LSQ29T1G
2.9
SIDG
SC−82AB
(Pb−Free)
NCP305LSQ30T1
3.0
SIC
SC−82AB
NCP305LSQ30T1G
3.0
SICG
SC−82AB
(Pb−Free)
NCP305LSQ30T3
3.0
SIC
SC−82AB
Open
Drain
Active
Low
Shipping†
3000 / Tape & Reel
3000 / Tape & Reel
10000 / Tape & Reel
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 NCP304 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 and 2.
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.
http://onsemi.com
21
NCP304, NCP305
ORDERING INFORMATION
Device
Threshold
Voltage
Output
Type
Reset
Marking
Package
NCP305LSQ31T1
3.1
SIB
SC−82AB
NCP305LSQ32T1
3.2
SIA
SC−82AB
NCP305LSQ33T1
3.3
SHZ
SC−82AB
NCP305LSQ34T1
3.4
SHY
SC−82AB
NCP305LSQ35T1
3.5
SHX
SC−82AB
NCP305LSQ35T1G
3.5
SHXG
SC−82AB
(Pb−Free)
NCP305LSQ36T1
3.6
SHU
SC−82AB
NCP305LSQ36T1G
3.6
SHUG
SC−82AB
(Pb−Free)
NCP305LSQ37T1
3.7
SHV
SC−82AB
NCP305LSQ37T1G
3.7
SHVG
SC−82AB
(Pb−Free)
NCP305LSQ40T1
4.0
SHR
SC−82AB
NCP305LSQ44T1
4.4
SHN
SC−82AB
NCP305LSQ45T1
4.5
SHL
SC−82AB
NCP305LSQ45T1G
4.5
SHLG
SC−82AB
(Pb−Free)
NCP305LSQ47T1
4.7
SHJ
SC−82AB
NCP305LSQ49T1
4.9
SHH
SC−82AB
NCP305LSQ49T1G
4.9
SHHG
SC−82AB
(Pb−Free)
Open
p
Drain
Active
Lo
Low
Shipping†
3000 / Tape & Reel
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 NCP304 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 and 2.
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.
http://onsemi.com
22
NCP304, NCP305
PACKAGE DIMENSIONS
SC−82AB
SQ SUFFIX
CASE 419C−02
ISSUE C
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. 419C−01 OBSOLETE. NEW STANDARD IS
419C−02.
4. DIMENSIONS A AND B DO NOT INCLUDE
MOLD FLASH, PROTRUSIONS, OR GATE
BURRS.
A
G
C
D 3 PL
N
4
3
1
2
K
B
S
F
L
H
J
0.05 (0.002)
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23
DIM
A
B
C
D
F
G
H
J
K
L
N
S
MILLIMETERS
MIN
MAX
1.8
2.2
1.15
1.35
0.8
1.1
0.2
0.4
0.3
0.5
1.1
1.5
0.0
0.1
0.10
0.26
0.1
−−−
0.05 BSC
0.2 REF
1.8
2.4
INCHES
MIN
MAX
0.071
0.087
0.045
0.053
0.031
0.043
0.008
0.016
0.012
0.020
0.043
0.059
0.000
0.004
0.004
0.010
0.004
−−−
0.002 BSC
0.008 REF
0.07
0.09
NCP304, NCP305
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
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
P.O. Box 61312, Phoenix, Arizona 85082−1312 USA
Phone: 480−829−7710 or 800−344−3860 Toll Free USA/Canada
Fax: 480−829−7709 or 800−344−3867 Toll Free USA/Canada
Email: [email protected]
N. American Technical Support: 800−282−9855 Toll Free
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Japan: ON Semiconductor, Japan Customer Focus Center
2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051
Phone: 81−3−5773−3850
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24
ON Semiconductor Website: http://onsemi.com
Order Literature: http://www.onsemi.com/litorder
For additional information, please contact your
local Sales Representative.
NCP304/D