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ZHCS500 Datasheet(PDF) 11 Page - Zetex Semiconductors |
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ZHCS500 Datasheet(HTML) 11 Page - Zetex Semiconductors |
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11 / 14 page  Output Power Calculation By making the above assumptions for inductance and peak current the output power can be determined by: Note:VOUT=output voltage + Schottky rectifier voltage drop. Where TOFF ≅1.7us (internally set by ZXSC310) and and Where Operating frequency can be derived by: Capacitor selection For pulsed operation, as in the maximum battery life solution, no capacitors are required at the output to the LED. For rectified operation, as in the maximum brightness solution, a small value ceramic capacitor is required, typically 2.2uF. Generally an input capacitor is not required, but a small ceramic capacitor may be added to aid EMC, typically 470nF to 1uF. (notes) ZXSC310 PROVISIONAL ISSUE A - SEPTEMBER 2001 11 () II VV T L MIN PK OUT IN OFF =− −× () F TT ON OFF = + 1 I II AV PK MIN = + 2 () T TV V V ON OFF OUT IN IN = − PV V I T TT OUT OUT IN AV OFF ON OFF =− × × + () |
Similar Part No. - ZHCS500 |
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Similar Description - ZHCS500 |
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