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UC3842AL-D08-T Fiches technique(PDF) 6 Page - Unisonic Technologies

No de pièce UC3842AL-D08-T
Description  CURRENT MODE PWM CONTROL CIRCUITS
Download  9 Pages
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Fabricant  UTC [Unisonic Technologies]
Site Internet  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UC3842AL-D08-T Fiches technique(HTML) 6 Page - Unisonic Technologies

  UC3842AL-D08-T Datasheet HTML 1Page - Unisonic Technologies UC3842AL-D08-T Datasheet HTML 2Page - Unisonic Technologies UC3842AL-D08-T Datasheet HTML 3Page - Unisonic Technologies UC3842AL-D08-T Datasheet HTML 4Page - Unisonic Technologies UC3842AL-D08-T Datasheet HTML 5Page - Unisonic Technologies UC3842AL-D08-T Datasheet HTML 6Page - Unisonic Technologies UC3842AL-D08-T Datasheet HTML 7Page - Unisonic Technologies UC3842AL-D08-T Datasheet HTML 8Page - Unisonic Technologies UC3842AL-D08-T Datasheet HTML 9Page - Unisonic Technologies  
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UC3842A/3843A
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
6 of 9
www.unisonic.com.tw
QW-R103-002.H
CURRENT SENSE CIRCUIT
5
3
1
2R
R1V
C
Rs
R
Is
Error Amplifier
Current Sense Comparator
Peak current (Is) determined by the formula: ISMAX=1.0V/Rs.
A small RC filter be required to suppress switch transients.
SLOPE COMPENSATION
A fraction of the oscillator ramp can be resistively summed with the current sense signal to provide slope
compensation for converts requiring duty cycles over 50%.Note that capacitor C, forms a filter with R2 to suppress
the leading edge switch spikes.
OSCILLATOR SECTION
Dead time vs. CT(RT>5kΩ)
Timing Resistance vs. Frequency


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Description similaire - UC3842AL-D08-T

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