TCA62753FUG Datasheet, PDF (5/10 Pages) Toshiba Semiconductor – Charge Pump type DC/DC Converter for White LED Driver

Test Circuit
V_IN
1 ^C- _SHDN 6
I_IN
A
C = 1.0µF _{2 VIN GND 5}
I_SHDN
A
3 C+ VOUT 4
C_IN = 2.2µF
C_OUT = 2.2µF
I_{OUT ˣ}
TCA62753FUG
V_SHDN
V
The example of Application Circuit
*These application examples are provided for reference only.
*Thorough evaluation and testing should be implemented when designing your application's mass production design.
The example 1) Drive of 5 LEDs
V_IN = 3.0V ~ 5.0V
C = 1.0µF
1 ^C- _SHDN 6
2 ^VIN ^GND 5
3 C+ VOUT 4
C_IN = 2.2µF
C_OUT = 2.2µF
SHDN
R R R RR
The example 2) 5V power supply
*The LED current becomes 20mA by R = 20Ω. (For LED V_f = 3.6V)
V_IN = 3.0V ~ 5.0V
C = 1.0µF
1 ^C- _SHDN 6
2 ^VIN ^GND 5
3 C+ VOUT 4
C_IN = 2.2µF
C_OUT = 2.2µF
SHDN
V_OUT = 5.0V ± 6%
I_OUT = 100mA
5
2006-10-25