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TCA62735AFLG Fiches technique(PDF) 5 Page - Marktech Corporate

No de pièce TCA62735AFLG
Description  Charge Pump type DC/DC Converter for White LED Driver
Download  12 Pages
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Fabricant  MARKTECH [Marktech Corporate]
Site Internet  http://www.marktechopto.com
Logo MARKTECH - Marktech Corporate

TCA62735AFLG Fiches technique(HTML) 5 Page - Marktech Corporate

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TCA62735AFLG
TENTATIVE
This datasheet is tentative, the values and contents are subject to change without any notice.
2005-04-26 (Page 5 of 12)
Evaluation Circuit
IOUT Current vs. VIN
0
20
40
60
80
100
120
140
160
2.8
3.0
3.2
3.4
3.6
3.8
4.0
4.2
VIN (V)
4LEDs at 30mA
4LEDs at 20mA
4LEDs at 5mA
ILED Current vs. VIN
0
5
10
15
20
25
30
35
40
2.8
3.0
3.2
3.4
3.6
3.8
4.0
4.2
VIN (V)
4LEDs at 30mA
4LEDs at 20mA
4LEDs at 5mA
1x Mode Transition Voltage vs. ILED Current
3.4
3.5
3.6
3.7
3.8
3.9
4.0
4.1
5
1015
2025
30
ILED Current (mA)
LED Vf=3.2V,4ch ON
LED Vf=3.4V,4ch ON
LED Vf=3.6V,4ch ON
C1-
C2-
C2+
CTL2
CTL1
CTL0
EN
RSET=8.2kΩ to 47kΩ
CIN=2.2µF
COUT=1.0µF
C1=1.0µF
VIN=2.8V to 4.2V
C2=1.0µF
V
A
A
V
GND
• Evaluation conditions
LED
: NACW215 (NICHIA Corp.)
CIN
: C1608JB1C225K (TDK Corp.)
COUT
: C1608JB1C105K (TDK Corp.)
C1
: C1608JB1C105K (TDK Corp.)
C2
: C1608JB1C105K (TDK Corp.)


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