Part Number: TPS564257DRLR
TPS564257DRLR在负载未焊接完全的板卡上正常工作,但在负载焊接完成的板卡上不工作。不是负载过流现象。无输出电压,使能正常。拆下后,重新焊接到另一未焊接完全的板卡上又正常工作。无PWM波形。(使能电压可能过高,但飞线用3.3v使能,仍不工作。)已测试,后端无短路
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Part Number: TPS564257DRLR
TPS564257DRLR在负载未焊接完全的板卡上正常工作,但在负载焊接完成的板卡上不工作。不是负载过流现象。无输出电压,使能正常。拆下后,重新焊接到另一未焊接完全的板卡上又正常工作。无PWM波形。(使能电压可能过高,但飞线用3.3v使能,仍不工作。)已测试,后端无短路