поискавой системы для электроныых деталей |
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TA7259P датащи(PDF) 11 Page - Toshiba Semiconductor |
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TA7259P датащи(HTML) 11 Page - Toshiba Semiconductor |
11 / 18 page TA7259P/F/FG 2006-4-14 11 (3) Connecting condenser for output ringing absorption We recommend connecting a condenser between each coil and the GND for output ringing absorption . However, other methods below can be also applied to prevent oscillation and destruction. ⅰ ) Changing capacity. ⅱ ) Delta connection (Fig.6−a) ⅲ ) Connect to VCC, not to the GND. (Fig. 6−b) In this case; take care not to let the IC be destroyed. If voltage-current locus is beyond the ASO, series resistance or equivalent must be inserted. ⅳ ) Connect to RF pin. ⅴ ) Insert a resistance between condenser and series. (Fig. 6−c) ⅵ ) Combination of ⅰ), ⅱ), ⅲ), and ⅳ). Fig. 6-a Fig. 6-b Fig. 6-c Others The output transistor of the IC can be destroyed when the capacity of the output condenser or its connection is not appropriate. To prevent destruction, confirm the voltage-current locus of the output transistor gained from the test (see the figure below) is within the ASO. It is especially important to measure the output transistor in SW’s ON/OFF timing and the sequence of normal rotation, reverse rotation, and normal rotation. Fig. 7 TA7259 P/F/FG TA7259 P/F/FG TA7259 P/F/FG Use bipolar condenser. Current probe To Y-axis of oscilloscope To X-axis of oscilloscope Applying not only La but Lb and Lc is recommended. Current- voltage locus |
Аналогичный номер детали - TA7259P_06 |
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Аналогичное описание - TA7259P_06 |
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