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AN6884 5-Dot LED Driver Circuit
■ Description
The AN6884 is a monolithic integrated circuit driving 5- LED and is capable of logarithmic (dB) bar graph display for input signal. Incorporating high gain rectification amp. enable to apply AC (UV meter, etc.) / DC (signal meter, etc.) level meter widely.
Features:
- Wide range of operating voltage: VCC(opr.) = 3.5V ~ 16V
- Constant current output: ILED=15mA
- Built-in high gain amp.: Gy = 26dB typ.
- Low noise when LED ON
- 5-dot LED bar logarithmic response: -10, -5, 0, 3, 6dB
- Fewer external components
P.S. I am not the original author, I just draw it.