AN6886

The AN6886 is an intergrated circuit designed for driving 5-dot LED and enables a logarithmic (dB) bar graph display. Two gain-adjustable rectifier Amp. with external resistor are built in and adopt the large input prority system. Because the output is the constant-current drawing system, the constant-current value can be varied by changing the external resistor.

There are some AN6886 features as follows. First is wide range of operating voltage which is from 4 to 16 V. The second is wide range of fixed currents which is from 5 to 25 mA. Then is two built-in high gain amplifiers. At last, operation start voltage can be freely set (when reference voltage is not used).

What comes next is about the absolute maximum ratings of AN6886(Ta=25). The VCC (supply voltage) is 18 V. The V14-8 (circuit voltage) is 12 V. The V1-8 (LED-ON set voltage) is VCC V. The V9-13-8 (LED output pin voltage) is VCC V. The ICC (supply current) is 15 mA. The I9-13 (LED output pin current) is 30 mA. The I5 (reference voltage output current) is -5 mA. The I6 (RA pin input current) is 10 mA. The PD (power dissipation) is 480 mW at TA75. The operating ambient temperature is from -30 to +75. The storage temperature is from -55 to +150.