JAJSFH6D May 2018 – October 2022 TPS65987D
PRODUCTION DATA
The BUSPOWERz input to the internal ADC controls the behavior of the TPS65987D in response to VBUS being supplied during a dead battery condition. The pin must be externally tied to the LDO_3V3 output via a resistive divider. At power-up the ADC converts the BUSPOWER voltage and the digital core uses this value to determine start-up behavior. It is recommended to tie ADCin1 to LDO_3V3 through a resistor divider as shown in Figure 8-17. For more information about how to use the ADCIN1 pin to configure the TPS65987D, please see Section 8.4.1.
Devices implementing the BP_WaitFor3V3_External configuration must use GPIO16 for external sink path control.