T6309B Taiwan Memory Technology, T6309B Datasheet - Page 10

• Manufacturer Part Number: T6309B
• Description: Micropower Step-up DC/DC Converter
• Manufacturer: Taiwan Memory Technology

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TYPICAL APPLICATION CIRCUITS
Fig. 1 Typical application for driving 3 white LEDs
Fig. 2 White LED application with DC voltage dimming control
Fig. 3 Typical 11V application for line drivers
TM Technology Inc. reserves the right
to change products or specifications without notice.
5.5V
5 .5 V
5 .5 V
V
V
V
2.5
2 .5
2 .5
to
to
t o
IN
IN
IN
O FF
O F F
4.7uF
O F F
4 .7 u F
CH
C
4 .7 u F
TE
C
O N
C
IN
10uH
O N
IN
1 0u H
O N
L1
IN
6
4
1 0 u H
L1
6
4
L 1
6
4
V
C E
V
C E
IN
T 6309B
V
C E
IN
T 6 3 09 B
G N D
S W
IN
G N D
T 6 3 0 9 B
S W
G N D
S W
2
O V P
1
2
O V P
1
FB
2
F B
O V P
1
F B
D 1
4.7uF
5
3
C
D 1
4 .7 u F
O U T
5
3
C
D 1
O U T
4 .7 u F
5
3
C
O U T
D im m ing
C ontrol
0V ~2V
100K
R 2
25K
R 1
I
2 65 K
1 0K
L E D
R 2
R 1
P. 10
2 0m A
1 1V
= 2 0 m A
2 0 O h m
I
LE D
R
S
=20m A
25 O hm
R
S
Publication Date: SEP. 2005
T6309B
Revision: A