Features:
- High gain rectifying amplifier included(Gv=26dB)
- Low radiation noise when LED turns on
- logarithmic indicator for 5-dot LED of bar type.
- Constant current output( 15mA)
- Wide operating supply voltage(3.5V~16V)
- Not necessary diode or transistor for ALC
- Minimum number of external parts required
Block Diagrams:
Circuit Diagrams:
- if the LED1 is ON (IC Pin 1) – the battery charge is 100% full
- else if LED2 is ON (IC Pin 2)- the battery charge is 75% full
- else if LED3 isON (IC Pin 3)- the battery charge is 50% full
- else if LED4 is ON (IC Pin 4)- the battery charge is 25% full
- else LED5 is ON (IC Pin 6)- the battery charge start from 0%
Note: will use 12V battery and calibrate using this potentiometer…next will use 9v battery and again calibrate using this potentiometer.
Application:
- Audio level Indicator
- Battery level indicator
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