• Matryca LP156WH2 - uszkodzone podświetlenie LED

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Matryca LP156WH2 - uszkodzone podświetlenie LED

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#1 Matryca LP156WH2 - uszkodzone podświetlenie LED

by altonserwis • 14 January 2013, 15:02
Szukam aplikacji układu TPS 61188 lub fragmentu schematu z takim układem.
Jest to driver podnoszący zasilanie na podświetlenie LEDowe, matryca to: LP156WH2 (TL)(R1), układ jest zamontowany na płytce matrycy.
Niekiedy podświetlenie odpala, ale sporadycznie i na chwilę, jednak najczęściej na wyjściu układu, za diodą, jest napięcie 19V więc wejściowe.
Udało się parę razy zmierzyć napięcie w okolicach 29-38V ale bardzo niestabilne.

Wygląda na uszkodzony TPS61188, czy ktoś ma pomysł skąd go zamówić?

Pozdrawiam.

Re: Matryca LP156WH2 - uszkodzone podświetlenie LED

by Google Adsense [BOT] • 14 January 2013, 15:02

#3 Re: Matryca LP156WH2 - uszkodzone podświetlenie LED

by altonserwis • 15 January 2013, 14:10
Niestety nie pasuje, przeleciałem wszystkie TPS 6118x i żaden nie jest w takiej obudowie, 4x7 pinów.

Pozdrawiam.

Re: Matryca LP156WH2 - uszkodzone podświetlenie LED

by Google Adsense [BOT] • 15 January 2013, 14:10
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