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Table of Contents
Voice Smoke Detector
HT45F24A
Characteristics
Sensor : Optical Cavity Maze
Operating voltage : 3V
Operating current
Standby current (Typ.) : 2.8µA
◆
Standby current (Max.) : 4.83µA
◆
Alarm operating current : < 35mA
Low voltage voice alarm : 2.7V
Adjustable volume using software : Voice alarm ‒ volume up to 85db / 3m
Detector sensitivity : Meets UL 217 Standard, when the smoke particle
concentration value reaches 3.2% per foot, the detecor will react
Operating temperature : -10°C ~ 50°C
HT45F24A
Synchronisation Signal
PA2
Programming Pin
IR Transmit
from top : VDD RESB PA0 GND
Second Stage
OPA Output
Programming Pins Starting
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Summary of Contents for Holtek HT45F24A
- Page 1 Voice Smoke Detector HT45F24A Characteristics Sensor : Optical Cavity Maze Operating voltage : 3V Operating current Standby current (Typ.) : 2.8µA ◆ Standby current (Max.) : 4.83µA ◆ Alarm operating current : < 35mA Low voltage voice alarm : 2.7V ...
- Page 2 Operation Description The test key function description : When the battery voltage is normal, the voice is “System normal”. When the low battery voltage is detected, the voice is “Please change the battery”. When the smoke is deteced and the smoke detector alarms, the voice is “Fire”, ...
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