Interface Capabilities: (Click icon or tag for recommended products by interface)
15W (5V@3A) Out
24.9W (9V@2.77A) Out
PD 3.0 PPS
USB PD 3.0
3.52A OCP Threshold (5V)
3.21A OCP Threshold (9V)
Cable Assemblies & Connectors, USB
Source, USB PD
How the Samsung 25W PD 3.0 PPS Type-C Charger Supports USB Power Delivery
The 25W charger that shipped with the Samsung Galaxy S10 5G phone is Samsung's first USB Type-C based charger for its Galaxy series. The Samsung 25W PD 3.0 PPS Type-C Charger supports USB Power Delivery 3.0 based PPS (Programmable Power Supply) and Augmented PDO's for rapid charging over the Type-C interface. The charger offers up to 25 watts output using fixed PDO's (Power Delivery Objects) of 15 watts (5 volts @ 3 amps) and 24.9 watts (9 volts @ 2.77 amps) as well as variable power of 9.9-17.7 watts (3.3~5.9 volts @ 3 amps) and 7.4-24.8 watts (3.3~11 volts @ 2.25 amps) power profiles.
The USB Power Test App first negotiates a power contract for every PDO supported by the Samsung 25W PD 3.0 PPS Type-C Charger, and increases the load gradually to find the threshold where over current protection (OCP) kicks in and voltage and current start to drop for safety reasons.
The USB Power Test App then reports out the fixed PDO's supported by the Samsung charger and their OCP thresholds.
PDO#1 Fixed: 5V 3A
PDO#2 Fixed: 9V 2.77A
The USB Power Test App from Granite River Labs takes this data to produce an I-V curve which graphically shows the relationship between voltage and current for each PDO. Like other chargers that support PPS (Programmable Power Supply), we can observe current fold-back behavior for the 9V PDO where as the current increases beyond the OCP threshold, the voltage starts to curve down rather than immediately shutting off. The 5V PDO just shows the voltage immediately shuts off when crossing the OCP threshold.