Texas Instruments TPS25810EVM-745, Руководство пользователя

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J8 J11
CHG
CHG_HI
J8 J11
CHG
CHG_HI
J8 J11
CHG CHG_HI
J8 J11
CHG
CHG_HI
Current Broadcast limit:
Actual Current Limit:
Load Detect Threshold:
Current Broadcast limit:
Actual Current Limit:
Load Detect Threshold:
Current Broadcast limit:
Actual Current Limit:
Load Detect Threshold:
STD
1.70 A
N/A
1.5 A
1.70 A
N/A
3.0 A
3.40 A
1.95 A
Jumper Position
Broadcast Current Limits
OR
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Enabling and Configuring the TPS25810
5.2 Configuring the Broadcast Current Limit on the TPS25810
The TPS25810 can also advertise (using the CC lines) how much current it can supply to a connected
USB device. The three levels of current limits that the TPS25810 can support are: STD, 1.5 A, and 3 A.
To switch between these three levels, a HIGH or LOW voltage is set onto pins CHG and CHG_HI of the
TPS25810. Refer to the data sheet for voltage levels required for CHG and CHG_HI to change the current
limit levels. On the TPS25810EVM-745 jumpers J8 and J11 control the voltage level of CHG and CHG_HI
pins respectively.
Figure 6 shows how to set up the jumper connections in order to get the desired current
limit broadcasted through the CC lines.
Figure 6. Jumper Connection for Each Broadcast Current Limit
7 SLVUAI0A – September 2015 – Revised September 2015 TPS25810EVM-745 User's Guide
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