Part Number: TIDA-00730 Hi:
In the reference design, TVS CDSOT23-SM712 was used to suppress 1kV inrush current and passed the test. Who knows what the surge current is during the surge test? The picture shows the circuit being tested in the reference…
Part Number: BQ40Z50 Hi TI Team:
我们有个产品方案使用BQ40Z50+BQ296107,电量计部分的原理图与TI参考设计一致。近日有1个产品从用户处退回来,出货时间是21年,发现是Fuse熔断,产品对于Fuse只设定单节过压时BQ296107动作,所以虽然线路上BQ40Z50的Fuse pin有预留,但实际PF_EN和二级保护设定都disable,做了以下确认:
1、三端Fuse拆开,发现是两边都有熔断,现象符合Fuse pin到地,Fuse发热丝发热导致熔断导致;
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Part Number: UCC21231 Other Parts Discussed in Thread: LM5045 , The customer asked:
When I read the datasheet UCC21231, For DT pin, so if I understand correctly, if we use LM5045 on primary side, and for secondary side DT PIN should float or short to VCCI…