NCP5680 Datasheet, PDF (25/27 Pages) ON Semiconductor – High Efficiency White LED Driver

NCP5680
Typical Application Schematic Diagram
+Vbat
GND
C1
C2
0.22uF
C3
0.22uF
10uF
TRIG
SCL
SDA
23 22 21 20
C1P C1N C2P C2N
24 _Vbat
5 _TRIGFL
3 _SCL
Vout ¹⁹
IsSCH
VgsSCH
17
16
SCAP ¹⁵
Vbias
4 _SDA
14
1
GND ²
6
13
GND
18
VSD
PHSEN
NTC
AGND
PGND
U1
NCP5680
Vds1 ¹⁰
Vgs1 ¹²
Is1 ¹¹
Vds2 ⁹
Vgs2 ⁸
Is2 ⁷
C5
3
+
2
−
1
GND
D1
Q2
NTLJS4114
PWF3
R4
0.10R
GND
D2
Q3
PWF3
NTLJS4114
R5
0.10R
GND
Figure 26. Basic Power Flash Application
GND
TRIG
SCL
SDA
+Vbat
C1 0.22uFC2
C30.22GuNFD ^C4
100uF
10uF
C2N C2P
23 22 21 20
24
C1N C1P
PVbat
Vout ¹⁹
IsSCH ¹⁷
5 _TRIGFL
VgsSCH ¹⁶
SCAP ¹⁵
3 _SCL
Vbias ¹⁴
4 _SDA
Vds1 ¹⁰
AUXILIARIES
R1
0.5R
NTGS3433
Q4
C5
3
+
2
−
1
GND
D1
PHOTO SENSE
Q1
100k R2
GND
GND
NTC
1 _VSD
2 _PHSEN
6 _NTC
13 _AGND
Vgs1 ¹²
Is1
11
Vds2
9
Vgs2 ⁸
NTLJS4114 _{Q2 PWF3}
R4 GND
0.10R
D2
NTLJS4114 _Q3 PWF3
R5
GND
PGND
18
U1
Is2 ₇
0.10R
GND
NCP5680
Figure 27. Full Functions Typical Application
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