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BTS50020-1TAD 数据表(PDF) 34 Page - Infineon Technologies AG |
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BTS50020-1TAD 数据表(HTML) 34 Page - Infineon Technologies AG |
34 / 51 page Data Sheet 34 Rev. 1.1 2017-03-28 BTS50020-1TAD Smart High-Side Power Switch Functional Description 5.4.3.2 SENSE Signal Timing Figure 30 shows the timing during settling and disabling of the sense. Figure 30 Fault Acknowledgement 5.4.3.3 SENSE Signal in Case of Short Circuit to VS In case of a short circuit between OUT and VS, a major part of the load current will flow through the short circuit. As a result, a lower current compared to the nominal operation will flow through the DMOS of the BTS50020-1TAD, which can be recognized at the current sense signal. 5.4.3.4 SENSE Signal in Case of Over Load An over load condition is defined by a current flowing out of the DMOS reaching the current over load ICL or the junction temperature reaches the thermal shutdown temperature TJ(TRIP). Please refer to Chapter 5.3.6 for details. In that case, the SENSE signal will be in the range of IIS(FAULT) when the IN pin stays HIGH. This is a device with latch functionality. The state of the device will remain and the sense signal will remain on IIS(FAULT) until a reset signal comes from the IN pin. For example, when a thermal shutdown occurs, even when the over temperature condition has disappeared, the DMOS can only be reactivated when a reset signal is sent to the IN pin. t t t t VIN Short / Overtemp. VOUT IIS IIS1..4 IIS(fault) latch no reset reset tOFF<tIN(RESETD ELAY) t OF F>tIN (RESETD EL AY) 3V IIS(fault) IIS1..4 t t t t VIN Short circuit VOUT IIS VOUT IL IIS tON 90% of IL stat ic tsIS(O N) 90% of IS stat ic tpIS(O N)_90 VIN t t t t tpIS(FAU LT) tsIS(LC) |
类似零件编号 - BTS50020-1TAD |
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类似说明 - BTS50020-1TAD |
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