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TL494: Battery charger

Part Number: TL494

Dear Teng, good morning

I'd like to use TL494 as battery charger for 3.65 V battery.  Input voltage 12 V. 

QUESTION: can I use a circuit ?(please, see attach). The circuit  based on the circuit in Fig. 10-1, page 13 of the datasheet. I added a diode VD1. 

When the input voltage is turned off, then the battery voltage will be applied to the TL494. This is dangerous? 

TIA

Sincerely,

Vladimir Naumenkov

TL494 diode.docx