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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 ,Leg0753“” , L1 ,。 , 4.25V(), L2 ,L3 , ; 4.25V(,) L2 ,L3 , ,。, 4.25V() , L2 ,; 4.25V(),L2 ,,。 4.2 VDD ,L1、L2 ; BTP BTN 4.15V()。 4.3 VDD , Leg0753 (,),, , L1 ,L2 ,L3 ,; 4.25V(),L2 , L3 ,,; , L2 , L2 。 4.4 ,, BTP BTN 1.