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PDF NCP304A Data sheet ( Hoja de datos )
| Número de pieza | NCP304A | |
| Descripción | Voltage Detector Series | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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NCP304A
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Voltage Detector Series
The NCP304A is a second generation ultra−low current voltage
detector. This device is specifically designed for use as a reset
controller in portable microprocessor based systems where extended
battery life is paramount.
This device features a highly accurate undervoltage detector with
hysteresis which prevents erratic system reset operation as the
comparator threshold is crossed.
The NCP304A consists of complementary output devices that are
available with either an active high or active low reset output.
The NCP304A is 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.
Features
• 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 Output
• Active Low or Active High Reset Output
• This is a Pb−Free Device
Typical Applications
• Microprocessor Reset Controller
• Low Battery Detection
• Power Fail Indicator
• Battery Backup Detection
http://onsemi.com
4
1
SC−82AB
SQ SUFFIX
CASE 419C
PIN CONNECTIONS AND
MARKING DIAGRAM
Vin 4
3
SUD M G
G
Reset
Output
NC 1
2 GND
(Top View)
SUD = Specific Device Code
M = Date Code
G = Pb−Free Package
(Note: Microdot may be in either location)
NCP304ALSQxxT1
Complementary Output Configuration
4
Input
ORDERING INFORMATION
See detailed ordering and shipping information in the ordering
information section on page 5 of this data sheet.
*
3
Reset Output
Vref 2
GND
This device contains 38 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
© Semiconductor Components Industries, LLC, 2008
September, 2008 − Rev. 1
1
Publication Order Number:
NCP304A/D
1 page  
NCP304A
Input Voltage, Pin 2
Vin
VVDDEETT+−
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Reset Output (Active Low), Pin 1
Vin
VDET+
VDET−
0V
Reset Output (Active High), Pin 1
Vin
VVDDEETT+−
0V
Figure 7. Timing Waveforms
APPLICATION CIRCUIT INFORMATION
4 Input
NCP304A
Series
3
Reset Output
2 GN
D
*
* Required for
NCP305
VDD
Microprocessor
Reset
GND
VDD
Figure 8. Microprocessor Reset Circuit
ORDERING INFORMATION
Device
Threshold
Voltage
Output
Type
Reset
Marking
Package
Shipping†
NCP304ALSQ43T1G
4.3
CMOS
Active
Low
SUD
SC−82AB
(Pb−Free)
3000 / Tape & Reel
NOTE: Additional active low threshold devices, ranging from 0.9 V to 4.9 V in 100 mV increments and NCP304A 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.
†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.
http://onsemi.com
5
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| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet NCP304A.PDF ] | |
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