MC33774相关问题咨询
12-01-2023
01:23 AM
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Guestsun
Contributor II
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1、应用场景不同,锂电池可以给Vbat供电,燃料电池没有电压来源,是否只能外部供电VBAT。
2、MC33774是否有断线检测功能,断线检测功能的工作原理是什么样的。
3、18通道的转换周期是多少ms?
4、单体电压的输入范围:±5v,还是-3v到5v
5 Replies
12-03-2023
11:41 PM
3,099 Views
Guestsun
Contributor II
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1、VBAT的范围是9-81V,这个电压是不是外部给隔离电源12v,24v都可以?
12-04-2023
12:15 AM
3,084 Views
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NXP TechSupport
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刚才确认了下VBAT不可以这样用他跟cell的电压是有个关系的:
12-03-2023
11:43 PM
3,095 Views
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NXP TechSupport
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对的,这个是给芯片的供电用的
12-03-2023
11:52 PM
3,093 Views
Guestsun
Contributor II
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Hi
还有几个问题,请教一下,
1、均衡脚复用的功能是什么作用?
2、每个引脚都具备busbar的功能吗?
3、Cell terminal input voltage 第0-15串和16/17/18串的电压不一样。
4、busbar检测那章节处,不太了解引脚的电压范围。
12-03-2023
11:19 PM
3,104 Views
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1:应用场景不同,锂电池可以给Vbat供电,燃料电池没有电压来源,是否只能外部供电VBAT。
[gw] 燃料电池为何不能为VBAT供电?VBAT的范围是9-81V
2、MC33774是否有断线检测功能,断线检测功能的工作原理是什么样的。
[gw] 有Fast VB measurement 在datasheet P36.
3、18通道的转换周期是多少ms?
[gw] Measurement timing 跟Mode switching都在datasheet 的EC table里面 从Page79
4、单体电压的输入范围:±5v,还是-3v到5v
[gw]
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