Community Translation – What is the maximum dimming ratio achievable with TLD5099EP? (KA-03080)

[YuMa_1534086]

Dear supporter

I want to translate the following KBA(KA-03080), please confirm to my work.

https://community.infineon.com/t5/Knowledge-Base-Articles/What-is-the-maximum-dimming-ratio-achievab...

Best Regards.

Yutaka Matsubara

[IFX_Publisher1]

Hi Yutaka san,

Confirm to work on this KBA.

Thanks,
Mohammed.

[IFX_Publisher1]

Hi Yutaka san,

Confirm to work on this KBA.

Thanks,
Mohammed.

[YuMa_1534086 · Accepted solution]

Hi Mohammed-san.

I translated KBA(KA-03080).

Please check whether this translation is correct?

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TLD5099EPで達成可能な最大調光比はどれぐらいですか？（KA-03080）

調光比（コントラスト比とも呼ばれます）はPWM周期とDC-DCで管理可能な最小デューティ時間との比です。

カラーシフトなしで調光を実行するにはデジタル調光を使用する必要があります。

ちらつきを避ける為の最小PWM周波数は50Hz（= 20ms 周期）です。

TLD5099EPの最小デューティ時間はtPWMI,H = 6µsです。

その場合、コントラスト比は20*10^-3/(6*10^-6):1で3333:1になります。

TLD5099EPのデータシートの有効化および調光機能のセクションを参照してください。

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Best Regards.

Yutaka Matsubara

[IFX_Publisher1]

Hi Yutaka san,

Confirm to receive this KBA.

Thank you for your contribution.

Thanks,
Mohammed

[IFX_Publisher1]

Hi Yutaka san,

Confirm to receive this KBA.

Thank you for your contribution.

Thanks,
Mohammed

[IFX_Publisher1]

Hi Yutaka san,

Confirm to receive this KBA.

Thank you for your contribution.

Thanks,
Mohammed