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AT1453

Photoflash Capacitor Charger for DSC

Unspecified 

AT1453

Preliminary Product Information

Photoflash Capacitor Charger for DSC

DUTY Setting

The DUTY resistor selection depends on Duty Cycle , choose the component using the following

equation:

V DUTY

(V )

=

0.3

+

DUTY

1.15

RDUTY (KΩ) =

(

15

1.1 ) − 1.073

VDUTY

Example:

Set duty cycle is 50%

V DUTY

= 0.3 + 0.5

1.15

= 0.734

R DUTY

=

(

15

≈ 35.2KΩ

1.1 ) − 1.073

0.734

Output Voltage Setting

VOUT

=

R1 + R2

R2

×

VFB

VFB = 1.1V

2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.

Tel: 886-3-563-0878

WWW: http://www.aimtron.com.tw

Fax: 886-3-563-0879

Email: service@aimtron.com.tw

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