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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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L9026 bảng dữ liệu(PDF) 29 Page - STMicroelectronics |
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L9026 bảng dữ liệu(HTML) 29 Page - STMicroelectronics |
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29 / 60 page  8 Protection functions 8.1 Overload protection The L9026 has two different over load current thresholds that preserve it in case of overload or short-circuit of the load. This protection is present for every High side and Low side. Figure 13. Overload thresholds OUTn driving signal IL(OVL) IL(OVL0) IL(OVL1) Every time the channel is switched OFF the overload current threshold is set back to IL(OVL0). If the load current is higher than IL(OVL0) or IL(OVL1), after time tOFF(OVL) the overloaded channel is switched OFF and the corresponding diagnosis bit DIAG_OVC_OVT.OUTn is set to “1”. The channel can be switched ON after clearing the protection latch by setting the corresponding DIAG_OVC_OVT_RLW.OUTn bit to “1.” This bit is set back to “0” internally after de-latching the channel. Refer to Figure 14 for details. L9026 Protection functions DS13397 - Rev 9 page 29/60 |
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