Hi Experts,
Our customer designed a custom board referencing the EVM schematic however, the resulting board does not charge the 8.4V 2 Cells battery.
Here is the customer schematic:
Can you help with this?
Thank you.
Regards,
Marvin
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Hi Experts,
Our customer designed a custom board referencing the EVM schematic however, the resulting board does not charge the 8.4V 2 Cells battery.
Here is the customer schematic:
Can you help with this?
Thank you.
Regards,
Marvin
Hello Marvin,
Can you please explain more about your setup? What is the input voltage, what is the battery voltage, what is the TS voltage, what are the STATx and PG/ LEDs doing?
Regards,
Mike Emanuel
Hi Mike,
Marvin,
A TS voltage of 2.46 V is above the VT1 threshold indicating a cold battery. Please bias the TS voltage appropriately to begin charging. See Section 8.3.18 of the datasheet.
Regards,
Mike Emanuel
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Marvin,
What are the STATx LEDs doing and what is the battery voltage?
Regards,
Mike Emanuel
Marvin,
Please tell me which actual STATx pin is illuminated. What is the VFB voltage when the battery voltage is 7.2V? What is the voltage across the charge current sense resistor?
Regards,
Mike Emanuel