RK3288 Hardware Design Guide
Fig 5-15
RC5T620 has two sample resistors: one of them is sample resistor of charging current as
shown in Fig 5-16, both ends of R2166 should be differentially routed to pads of C4 and C5, as
shown in blue trace in Fig 5-17, notice don't connect C5 to B5, otherwise charging current will
be too small.
Fig 5-16