A5303 A5303SLETR low-current BiCMOS photoelectric smoke detector circuit

Details

Image

Features and Benefits

▪ Low average standby current allows 10-year battery life

▪ 2.3 to 5.5 V operating range

▪ Interconnect option

▪ Logic outputs to control an external sound IC

▪ Low battery detection and warning

▪ Chamber sensitivity test and warning

▪ Triple horn-chirp to distinguish chamber warning

▪ Power-on reset (POR)

▪ Digital filter on I/O provides significant noise immunity

▪ Timer (hush) mode for enabling reduced sensitivity period

▪ Built-in circuits to reduce false triggering

▪ ESD protection circuitry on all pins

▪ Temporal Horn Pattern, per UL217, NFPA72, ISO8201

▪ Latching alarm indicator identifies alarm-initiating devices