USB-C PD Plank?

General
113 
I2C> usbpd status
Source      : PD source connected
CC line     : CC2
Data role   : UFP
De-rating   : normal
VBUS voltage: 5040 mV
VBUS current: 72 mA
Requested V : 5000 mV
Requested I : 3000 mA
Temperature : 20 C

Available PDO entries: 7
PDO 1 (SPR Fixed): 5000 mV, 3000-3249 mA
PDO 2 (SPR Fixed): 9000 mV, 3000-3249 mA
PDO 3 (SPR Fixed): 12000 mV, 2500-2749 mA
PDO 4 (SPR Fixed): 15000 mV, 2000-2249 mA
PDO 5 (SPR Fixed): 20000 mV, 1500-1749 mA
PDO 6 (SPR PPS): >=3300 mV to 5900 mV, 3000-3249 mA
PDO 7 (SPR PPS): >=3300 mV to 11000 mV, 3000-3249 mA

AP33772S plank seems to work.

image
image879×161 1.37 KB

The level shifters for CC0/1 signals looks to be working well.

Updates:

  • Remove discharge
  • Bigger form factor current sense resistor
  • 6.8K FET resistor to match datasheet
  • 0805 components
  • Bigger terminal block (3.08?) 5mm
  • Standard TVS diodes - our standard part won’t work with the way this board is powered.
  • VBUS LED to 100K
  • Optimize PCB
1 Like