BA6154 データシートの表示（PDF） - ROHM Semiconductor

部品番号

コンポーネント説明

メーカー

BA6154

LED level meter driver, 5-point, VU scale

ROHM Semiconductor 

Audio ICs

FApplication example

BA6154

The response time (attack and release time) can be

changed by varying the values of C1 and R1.

C2 is a coupling capacitor, and the potentiometer VR va-

ries the input level. Input a fixed voltage level and adjust

the potentiometer so that the LED lights at 0dB. To re-

duce the LED current, connect a resistor either in parallel

FExternal dimensions (Units: mm)

(Fig. 3 (1)) or in series (Fig. 3 (2)) with the LED. If a resist-

er is connected in series with the LED, the LED current

will change if the supply voltage fluctuates.

Note: If the power supply voltage exceeds 9V, insert a resistor in series with

the LED current supply line, or connect a heat sink so that the maxi-

mum power dissipation Pd Max. is not exceeded (see Fig. 4).

639

Share Link: