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| TCA62735AFLG Datasheet, PDF (11/18 Pages) Marktech Corporate – Charge Pump type DC/DC Converter for White LED Driver | |||
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TCA62735AFLG
Method of setting ILED
The current of the terminal ILED1 to 4 is set by resistance RSET connected with the terminal ISET.
ILED can be set according to the next expression.
ILED[mA] =
400 Ã 0.61[V]
RSET[kâ¦]
35
30
25
20
15
10
5
0
0
RSET vs ILED
5
10 15 20 25 30 35 40 45 50
RSET(kâ¦)
C1=1.0µF
C2=1.0µF
C1-
C2-
C2+
GND
RSET
COUT=1.0µF
VIN=2.8V~4.2V
CIN=2.2µF
CTL2
CTL1
CTL0
EN
11/18 2007-06-21
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