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TPS92640: Battery charger with CC/CV up to 65V output

Part Number: TPS92640
Other Parts Discussed in Thread: TPS92200

Hello,

Consider a situation with two batteries of 1 kWh - with different state of charge (SoC), for example with output voltages of 65V and 55V. What we want is a solution when the higher SoC battery discharges into the lower SoC battery through a DC-DC regulator which performs the CC/CV until the two batteries reach similar voltage.

Considerations for this solution are

  1. Low shutdown current, not Iq (< 25 uA)
  2. Able to reach near 100% duty cycle so that the batteries can reach 
  3. 10A CC current till the battery voltage equalization happens where CV can happen till say 2A charging current
  4. Simple control with possibly a GPIO

Is it possible with TPS92640 or any other buck or other DC-DC chipsets of TI?

Thanks, Prithvi