2549 UDx2549B OUT4 K OUT3 GROUND GROUND OUT2 K OUT.
Allegro MicroSystems
UDN2549 - PROTECTED QUAD POWER DRIVER
2549 UDx2549B OUT4 K OUT3 GROUND GROUND OUT2 K OUT1 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 IN 4 IN3 ENABLE GROUND GROUND V CC IN 2 IN 1 PROTECTED QUA.