JAJSCL2C October 2016 – August 2021 TPS65983B
PRODUCTION DATA
The design assumes that a DC-DC converter is connected to the paths where there is significant output capacitance on the DC-DCs to provide the additional capacitance for load steps. TI recommends for the DC-DC converters for to be capable of supporting current spikes which can occur with certain PD configurations.
The PP_EXT path is capable of supporting up to 5 A which requires additional capacitance to support system loading by the device connected to the charger. A ceramic 10-µF (X7R/X5R) capacitor is used in this design. This capacitor must at least have a 25-V rating with a recommended 30-V-rated or greater capacitor.
The PP_HV path is capable of supporting up to 3 A which requires additional capacitance to support system loading by the device connected to the charger. A ceramic 10-µF (X7R/X5R) capacitor coupled with a 0.1-µF high-frequency capacitor is placed close to the TPS65983B device.
The PP_5V0 and PP_CABLE supplies are connected together therefore a ceramic 22-µF (X7R/X5R) capacitor coupled with a 0.1-µF high-frequency capacitor is placed close to the TPS65983B device. The PP_5V0 path can support 3 A and the PP_CABLE path supports 600 mA for active Type C PD cables.
The design assumes that a DC-DC converter is connected to the paths where there is significant output capacitance on the DC-DCs to provide the additional capacitance. It is recommended to for the DC-DC converters to be capable of supporting current spikes which can occur with certain PD configurations.