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AS3630 датащи(PDF) 25 Page - ams AG

номер детали AS3630
подробное описание детали  8A Supercap Flash Driver
PDF  72 Pages
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производитель  AMSCO [ams AG]
домашняя страница  http://www.ams.com
Logo AMSCO - ams AG

AS3630 датащи(HTML) 25 Page - ams AG

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8A Supercap Flash Driver
AS3630 – 25
Torch/PWM Operation
Due to its concept, a torch or PWM operation can be performed
without even charging the Supercap (this allows instantaneous
video light or torch light):
Figure AS3630 – 21:
Immediate Torch (=Video Light) or PWM Operation
After setting mode_setting = “Torch” or “PWM Operation”7 the
step-up DCDC1 converter is used to generate -VDCDC sufficiently
high enough to drive the ILED_OUT current (controlled by
led_current). If keep_sc_charged (page 51)=1, VSUPERCAP is
charged by the current source IKEEP_CHARGE (without exceeding
end_of_charge_voltage) to maintain the charge on the Supercap
during this operating mode.
7. In PWM operation the current source ILED_OUT is PWM modulated with a duty cycle set by led_out_pwm.





 




 



 
  


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