Hello,
1) What is the maximum reverse current OUT of the Vback pin when Vcc=3.3VDC?
My customer have a concern that whether the current limit resistor or diode is needed between battery and Vback pin.
2) About pre-calibration accuracy (±35ppm) on datasheet,
The frequency tolerance of DMX-26S(crystal) is +-20ppm(min).
a) So will only BQ32002 of pre-calibration accuracy become +-15ppm?
If so, when other crystal is +-10ppm, total pre-calibration accuracy will become +-25ppm?
b) Or the above relationship is not established because total accuracy will be affected by board design and other factor?
Regards,
Tao_2199
