Datasheet

IN
EN
SW
D
FB
FREQ
AGND
COMP
SL22
SS
1
4
6
8
3
7
2
5
PGND
9
10
SW
TPS61087
V
5V±20%
IN
Cin
2*10µF/
16V
Cby
1µF/16V
L
6.8µH
Css
100nF
Rcomp
51kΩ
Ccomp
1.5nF
Rsense
15 Ω
Cout
4*10µF/
25V
V
500mA
S
3S3P wLED
LWE67C
Dz
BZX84C18V
Rlimit
110 Ω
PWM
100Hzto500Hz
optional
IN
EN
SW
D
FB
FREQ
AGND
COMP
SL22
SS
1
4
6
8
3
7
2
5
PGND
9
10
SW
TPS61087
V
5V±20%
IN
Cin
2*10µF/
16V
Cby
1µF/16V
L
6.8µH
Css
100nF
Rcomp
51kΩ
Ccomp
1.5nF
Rsense
15 Ω
Cout
4*10µF/
25V
V
500mA
S
3S3P wLED
LWE67C
Dz
BZX84C18V
Rlimit
110 Ω
optional
TPS61087
SLVS821C MAY 2008REVISED JULY 2013
www.ti.com
WHITE LED APPLICATIONS
Figure 21. Simple Application (5 V input voltage) (f
S
= 650 kHz) for wLED Supply (3S3P) (with optional
clamping Zener diode)
Figure 22. Simple Application (5 V input voltage) (f
S
= 650 kHz) for wLED Supply (3S3P) with Adjustable
Brightness Control using a PWM Signal on the Enable Pin (with optional clamping Zener diode)
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