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MAX77757 way to 0°C-40°C charge temperature range, and regarding PVL voltage

Thread Summary

The user inquires about adjusting the temperature thresholds for a lithium battery with a 10kΩ B3435 NTC thermistor to match the MAX77757's requirements, which need a B4750 curve. The final answer directs the user to visit the technical support pages on the newly integrated Analog Devices website for further assistance with the product. The user acknowledges the response.
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Category: Hardware
Product Number: MAX77757

Hello,

My customer intends to use a lithium battery, which has a limited temperature of 0°C to 40°C, but the battery has a built -in NTC with a 10kΩ B3435 curve.
In Threshold of THM of MAX77757, it cannot be adjusted to satisfy both Cold = 0°C and HOT = 40°C (it must be a B4750 curve).
Do you have a recommended way to solve this or a good idea?

Also, I am trying to adjusting the Thermistor curve by an additional circuit.
One of the ideas is a method of converting the curve using a PNP transistor (an attached picture), but it may depends on the PVL voltage.
Since the PVL voltage range is not listed on the data sheet, could you let me know the rough PVL specifications?

Best regards,

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[edited by: GenevaCooper at 8:20 PM (GMT -5) on 20 Nov 2023]
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