Hi
On the datasheet, the RESV_TRK pin is not connected.
However there is a capacitor at RESV_TRK pin.(It is DNP.)
Please let me know if there is any concerns without a capacitor.
(Which is better? with a capacitor or without a capacitor.)
On the application note, the capacitor is connected.
http://www.tij.co.jp/jp/lit/ug/sluube4a/sluube4a.pdf
Regards,
Koji Hamamoto