TPS65381-Q1: How to shutdown the Charger pump

Hi Songzhen,

The charge pump cannot be enable/disable manually. As described in section 5.3.6 of the datasheet the charge pump is automatically turned off once the CP_OV is set. CP_OV is typically set when VCP is above  (VBAT + 12 V). 

Removing the capacitor between CP1 and CP2 will disable the charge pump but will also cause no overdrive voltage for internal VDD6 FET which will cause VMON to detect an undervoltage condition.

Could you please confirm your customer is following the TPS65381-Q1 and TPS65381A-Q1 Design Checklist (http://www.ti.com/lit/an/slva611a/slva611a.pdf)?

Regards,
Ivan 

Hi Ivan,

Thank you so much for you feedback.

I have confirmed the checklist with customer, they followed the checklist. Could you share the layout file(Project file) of TPS65381EVM with customer?

Is there any other device recommendation for this kind of application that without charger pump？

If this file is NDA, please sent it to me thought E-mail. I will check the NDA with customer. Thanks.

BR

Songzhen Guo

Hi Team，

Could you provide the layout of TPS65381EVM (Project File) for customer? Thanks.

BR

Songzhen Guo