ZHCSI93D May 2018 – October 2022 TPS65987D
PRODUCTION DATA
The Primary and Secondary Detection follow the USB BC1.2 specification. This detection scheme looks for a resistance between D+ and D– lines by forcing a known voltage on the first line, forcing a current sink on the second line and then reading the voltage on the second line using the ADC integrated in the TPS65987D. The voltage source VDX_SRC and the current source IDX_SNK, are activated during primary and secondary detection.