LEg0753A - Universal charger
5 Legend Semicoducor Mei Zhou of China IC LEg0753A/B 1 : ,,,、, ; ,,””, , ; 4.25V(),,VFLED; ,,,,COB; ,; !,DIP400mA ,300 mA ;COB 300mA ,200 mA ; 2 DIP COB 1 8 BTN () 2 1 L3 L3 3 2 L2 L2 () 4 4 L1 () L1 5 6 ADJ 6 5 GND () 7 7 BTP () 3 L2A L2 () 8 9 VDD 1 5 Legend Semicoducor Mei Zhou of China 3 :(DIP-8) :(DIP-8) L1 (VF) 1.70V-2.10V( 2mA ) LED。R1(6.2k-20k)。VF,R1,R1 ±5% 2 5 Legend Semicoducor Mei Zhou of China 4 () 4.1 VDD