Order today, ships today. MCP4013T-502E/CH – Digital Potentiometer 5k Ohm 1 Circuit 64 Taps Up/Down (U/D, CS) Interface SOT-23-6 from Microchip Technology. Pricing and Availability on millions of electronic components from Digi-Key Electronics.
www.digikey.ca
Looks like many chinese sources used BQ7D for this ic. here is an example of one:
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