LM1801 datasheet specificies that the IC is an extremely low power comparator with a high current, open-collector output stage. The typical supply is only 7µA, yet in its switches state the comparator can source or sink 0.5A. The LM1801 is designed to operate in a standby mode for 1 year, powered by a 9V alkaline battery. Provision is made for operation from supplies of up to 14V.
LM1801 Features
- 8V to 14V operation
- direct drive to horn
- internal zener for supply regulation
- parallel comparator capability
- extremely low standby current drain
- 2 references on chip
- low battery detector
- 0.5 output transistor
- output clamp diodes on chip
LM1801 applications
- intrusion alarms
- water leak detectors
- gas leak detectors
- overvoltage crowbars
- battery operated monitors
