T3OUT1T1OUT2T2OUT3R2IN4R2OUT5T2IN6T1IN7R1OUT8R1IN9GND10VCC11C1+12V+13C1–14C2+15C2–16V–17R5IN18R5OUT19T3IN20T4IN21R4OUT22R4IN23EN24SHUTDOWN#(SD#)25R3OUT26R3IN27T4OUT28