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Part Number: NCP303
Description: The NCP302 and NCP303 series are second generation ultra−low current voltage detectors that contain a programmabl...
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NCP303
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DataSheet
General Description
NCP303 General Description
The NCP302 and NCP303 series are second generation ultra−low current voltage detectors that contain a programmable time delay generator. 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 and an externally programmable time delay generator. This combination of features prevents erratic system reset operation.
The NCP302 series consists of complementary output devices that are available with either an active high or active low reset. The NCP303 series has an open drain N−Channel output with an active low reset output.
NCP303 Maximum Ratings
| Rating | Symbol | ||
| Input Power Supply Voltage (Pin 2) | Vin | Vin | V |
| Delay Capacitor Pin Voltage (Pin 5) | VCD | -0.3 to Vin + 0. | V |
Output Voltage (Pin 1) Complementary, NCP302 N-Channel Open Drain, NCP303 |
VOUT | -0.3 to Vin + 0.3 |
V |
Output Current (Pin 1) (Note 2) |
IOUT |
70 | mA |
| Thermal Resistance Junction-to-Air | R_JA |
250 | °C/W |
| Maximum Junction Temperature | TJ |
+125 | °C |
| Operating Ambient Temperature Range | TA |
-40 to +85 | °C |
| Storage Temperature Range | Tstg |
-55 to +150 | °C |
| Moisture Sensitivity Level (TA = 235°C) | MSL | 1 | |
Latchup Performance |
ILATCHUP |
200 |
mA |
NCP303 Features
Quiescent Current of 0.5 A Typical
High Accuracy Undervoltage Threshold of 2.0%
Externally Programmable Time Delay Generator
Wide Operating Voltage Range of 0.8 V to 10 V
Complementary or Open Drain Output
Active Low or Active High Reset
Pb−Free Packages are Available
High Accuracy Undervoltage Threshold of 2.0%
Externally Programmable Time Delay Generator
Wide Operating Voltage Range of 0.8 V to 10 V
Complementary or Open Drain Output
Active Low or Active High Reset
Pb−Free Packages are Available
NCP303 Typical Application
Microprocessor Reset Controller
Low Battery Detection
Power Fail Indicator
Battery Backup Detection
Low Battery Detection
Power Fail Indicator
Battery Backup Detection
NCP303 Connection Diagram
NCP303
PDF/DataSheet Download
- Datasheet: NCP303
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