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這不就是樓主您描述的情形?小日本鬼子玩陰的,在規格書藏了這ˋ段話。
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Usage Precautions
# F) q4 w% [: `+ m+ N0 x- Although the TB6559FG contains overcurrent detection circuitry, a large current might abruptly flow through the IC in case of a short-circuit to power supply, a short-circuit to ground or a short-circuit across the load, damaging the device permanently. This possibility should be fully considered in the design of the output, VCC and ground lines. If the device is damaged, a large current might continually flow through the device as a secondary effect. Therefore, Toshiba recommends that a fuse be connected to the power supply line.. m( d. c4 j( k8 P7 X
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