FEATURES
• High reliability due to high-frequency lighting fluorescent lamp
Internal trap circuit
• Internal bandpass filter
Central frequency variable by external resistor: fO = 30 to 80 kHz
Few variation of central frequency thanks to fO trimming
• Low external components
Internal output pull-up resistor and power supply filter resistor
Only low external capacitance required
• ABLC (Automatic Bias Level Control) circuit
Controls fluctuation of bias level cause by disturbance from external light
• Open-collector output
Open-collector output (active low) with pull-up resistor (33 kW TYP.)