Of Abbreviations - Philips DVDR880/001 Service Manual

Circuit-, IC Descriptions and List of Abbreviations
IC7806
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 under voltage 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 SOT–23–5 package with seven standard under voltage
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 µA Typical
•
High Accuracy Under Voltage 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
Typical Applications
•
Microprocessor Reset Controller
•
Low Battery Detection
•
Power Fail Indicator
•
Battery Backup Detection
NCP300xSNxxT1
Complementary Output Configuration
2
Input
V
* 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.
 Semiconductor Components Industries, LLC, 2001
August, 2001 – Rev. 9
*
1
Reset Output
ref
3
Gnd
This device contains 25 active transistors.
Figure 1. Representative Block Diagrams
DVDR880-890 /0X1
http://onsemi.com
THIN SOT–23–5
PIN CONNECTIONS AND
MARKING DIAGRAM
Reset
1
Output
2
Input
3
Ground
xxx = 300 or 301
Y
W
ORDERING INFORMATION
See detailed ordering and shipping information in the ordering
information section on page 23 of this data sheet.
NCP301xSNxxT1
Open Drain Output Configuration
2
Input
*
V
ref
1
9.
5
1
SN SUFFIX
CASE 483
5 N.C.
4 N.C.
= Year
= Work Week
(Top View)
1
Reset Output
3
Gnd
Publication Order Number:
NCP300/D
EN 181