MC33887 Output avalanche protection

取消
显示结果 
显示  仅  | 搜索替代 
您的意思是: 

MC33887 Output avalanche protection

1,720 次查看
WolfgangCS
Contributor I

Hello,

In the datasheet of the "MC33887 5.0 A H-bridge with load current feedback" there is a section on "Output avalanche protection" on page 21 of the pdf file (see attachment), which suggests using "a zener clamp and/or an appropriately valued input capacitor with sufficiently low ESR" on the V+ input.

If the zener diode is used, how should it be connected? In parallel with the input capacitor? With the anode connected to ground and the cathode to V+? 

Thank you very much

标记 (1)
0 项奖励
回复
2 回复数

1,715 次查看
guoweisun
NXP TechSupport
NXP TechSupport

1:If the zener diode is used, how should it be connected? In parallel with the input capacitor? With the anode connected to ground and the cathode to +V?

[gw]Correct!

1,708 次查看
WolfgangCS
Contributor I

Thank you for your reply.
If a V+ voltage of 24V is used, what type of Zener diode could be used?

0 项奖励
回复