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王玉华

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[问答]

VND驱动器的过流阈值记录在哪里?

我正在记录VND5T050AK的短路行为。我记得看到一个大约36-44 A的阈值作为将芯片置于过载状态的跳闸点。但是我在数据表中找不到任何规格,也记不清我在哪里看到它。有谁记得这是记录在哪里?

以上来自于谷歌翻译


以下为原文




I am documenting short-circuit behavior of the VND5T050AK.  I remember seeing a threshold around 36-44 A as the trip point to put this chip in the overload state.  However I can't find any spec in the data sheet and can't remember where I saw it.  Does anyone remember where this is documented?

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陈畅妮

2018-10-18 17:25:28
嗨,你提到的情况在图中被清除了。 12相关数据表。
OVL条件由热关断或功率限制触发。
在这种情况下,器件被锁定,电流检测(CS)引脚变为高电平(VsenseH值)。
对于该器件,电流限制(IlimH)是24A和46A之间的值(典型值34A)。
在短路状态下,电流内部钳位在@ IlimH。
一旦热传感器和冷传感器之间的温差达到~60°C,就会激活功率限制
TSD的值介于150°C和200°C之间。
要解锁OVL条件,需要将Fault_Reset引脚设置为低电平,并且结温必须低于OVL_reset。
可用于任何进一步的说明
问候

以上来自于谷歌翻译


以下为原文




Hi, the condition you mentioned is cleared in fig. 12 of the relevant Datasheet.
The OVL condition is triggered by either Thermal Shutdown or Power Limitation.
In this condition the device is latched off and the Current Sense (CS) Pin becomes high (VsenseH value).
Fro this device, the current limitation (IlimH) is a value between 24A and 46A (typ. 34A).
In Short Condition, the current is internally clamped @ IlimH.
Once the temperature gap between the hot and the cold sensors reaches ~60°C, the Power Limitation is activated
The TSD is a value in the range 150°C and 200°C.
To unlatch the OVL condition the Fault_Reset Pin needs to be set low and the Junction Temp must be lower than OVL_reset.
Available for any further clarification
Regards
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王玉华

2018-10-18 17:45:24
谢谢谢谢!
我多次查看该数据表,不知何故再次找不到此条目。

以上来自于谷歌翻译


以下为原文




Thank you, thank you!
I went over that data sheet several times, and somehow could not find this entry again.
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