- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
1. Does "VBAT to GND protection" and "VBUS OCP" use the same - resistor current sensor to detect current ? ( pin#18 and pin#19)
2. Application note : This resistor senses the current, and if it exceeds the firmware-configured threshold, the NFET is
turned off to interrupt the current. This protects against over-current conditions caused by external faults
How to set "VBAT to GND" firmware-configured threshold to different value ?
Solved! Go to Solution.
- Labels:
-
USB EZ-PD Type-C
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi,
VBat to GND protection uses the low-side CSA pins that you have mentioned. VBus OCP uses a high-side current sense resistor. They are 2 separate resistors. You can refer to the Application diagram present in the datasheet for this.
Regarding the threshold configuration, please refer to pd_internal_vbat_gnd_scp_level_set() API in the source code. This is used to change threshold value.
VBUS UVP is detected from VBUS_C pin which is connected to the VBUS of the Type-C Connector.
Pranava
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Sorry i have another question which pin is used for detection UVP?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
You may start a new thread if this is still an open question.😊
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi,
VBat to GND protection uses the low-side CSA pins that you have mentioned. VBus OCP uses a high-side current sense resistor. They are 2 separate resistors. You can refer to the Application diagram present in the datasheet for this.
Regarding the threshold configuration, please refer to pd_internal_vbat_gnd_scp_level_set() API in the source code. This is used to change threshold value.
VBUS UVP is detected from VBUS_C pin which is connected to the VBUS of the Type-C Connector.
Pranava