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NCP304 Datasheet

  • NCP304

  • Voltage Detector Series

  • 244.93KB

  • 24頁

  • ONSEMI

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NCP304, NCP305
Voltage Detector Series
The NCP304 and NCP305 series are second generation ultra鈭抣ow
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鈭扖hannel output with an active low
reset output.
The NCP304 and NCP305 device series are available in the
SC鈭?2AB 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
http://onsemi.com
4
1
SC鈭?2AB
SQ SUFFIX
CASE 419C
PIN CONNECTIONS AND
MARKING DIAGRAM
Reset
1
Output
V
in
2
4
xxxm
G
GND
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
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鈭扚ree Packages are Available*
Microprocessor Reset Controller
Low Battery Detection
Power Fail Indicator
Battery Backup Detection
3
(Top View)
N.C.
Typical Applications
xxx = Specific Device Code
M = Date Code
G
= Pb鈭扚ree Package
ORDERING INFORMATION
See detailed ordering and shipping information in the ordering
information section on page 20 of this data sheet.
NCP304xSQxxT1
Complementary Output Configuration
Input
2
Input
NCP305LSQxxT1
Open Drain Output Configuration
2
1
Reset Output
*
V
ref
1
Reset Output
V
ref
GND
4
4
GND
This device contains 38 active transistors.
This device contains 37 active transistors.
* The representative block diagram depicts active low reset output 鈥楲鈥?suffix devices. The comparator
input is interchanged for the active high output 鈥楬鈥?suffix devices.
Figure 1. Representative Block Diagrams
*For additional information on our Pb鈭扚ree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
漏
Semiconductor Components Industries, LLC, 2005
March, 2005
鈭?/div>
Rev. 16
1
Publication Order Number:
NCP304/D

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