Voltage Detector Series
The NCP304 and NCP305LSQ28T1G 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 NCP305LSQ28T1G series has an open drain N−Channel output with an active low reset output.
The NCP304 and NCP305LSQ28T1G 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.
Typical Applications
• Microprocessor Reset Controller
• Low Battery Detection
• Power Fail Indicator
• Battery Backup Detection
Feature
• Quiescent Current of 1.0μA 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
