Xiaomi has been highly effective at bringing down electronics prices for consumers so it's great to see Xiaomi supporting USB Power Delivery 2.0 with the Mi 45W USB Type-C Power Adapter. Originally shipped with the Mi Notebook Air 13.3", the Mi 45W USB Type-C Power Adapter can also be used with many other popular notebook PC's, tablets, mobile phones, game consoles, and action cameras that support charging over the USB Type-C connector.
The Mi 45W USB Type-C Power Adapter is a very compact and portable wall charger supporting USB Power Delivery 2.0 charging up to 45 watts through USB Type-C.
With a max 45 watts output, the Mi 45W USB Type-C Power Adapter can be used to rapidly charge your notebook PC such as the Mi Notebook Air 13.3", Surface Book 2 or MacBook (Early 2015). You can also use the charger with the iPhone X, Google Pixel or Samsung Galaxy S8, and 10.5-inch iPad Pro for a quick charge but of course they won't use the full 45 watts. Note you will need to use a Apple USB-C to Lightning Cable to charge an iPhone or iPad.
Opening up the Mi 45W USB Type-C Power Adapter packaging, we can take a good look at the charger and its accessories.
The Mi 45W USB Type-C Power Adapter itself has foldable AC prongs and most conveniently comes with a USB Type-C to USB Type-C cable. The charger supports the common 100 to 240 V AC power requirement for own charging as well as supplying the most popular DC charging voltage levels - 5V, 9V, 12V, 15V, and 20V.
The Mi 45W USB Type-C Power Adapter comes with a single USB Type-C port that supports USB Power Delivery 2.0 that outputs up to 45 watts with these power profiles: 15 watts (5 volts @ 3 amps), 27 watts (9 volts @ 3 amps), 36 watts (12 volts @ 3 amps), 45 watts (15 volts @ 3 amps), and 45 watts (20 volts @ 2.25 amps).
Using the USB Power Delivery Compliance C2 Tester from Granite River Labs to run just a subset of the full USB Power Delivery compliance test suite, we are able to do a quick check of the 5 PDO's that the Mi 45W USB Type-C Power Adapter supports for charging- 15 watts (5 volts @ 3 amps), 27 watts (9 volts @ 3 amps), 36 watts (12 volts @ 3 amps), 45 watts (15 volts @ 3 amps), and 45 watts (20 volts @ 2.25 amps). Note some compliance failures were observed.
DUT Information
Manufacturer
|
Xiaomi
|
Model Number
|
45W PD AC Adapter
|
Serial Number
|
Comm
|
Test Information
Date and Time:
|
20180226_021631
|
Controller and Instrument Information
Parameter
|
Value
|
---|---|
GRL USB-PD_C2 Serial No.
|
039.019.039.027.062.
|
GRL USB-PD Software Version
|
1.3.3.8
|
GRL USB-PD Firmware Version
|
1.3.3.0.7
|
Board Calibration
|
Calibration Success.
|
App Mode
|
COMMUNICATION_ENGINE_TESTS
|
Tx Mask
|
true
|
Rx Mask
|
false
|
RX mask Power selection
|
Neutral Power
|
Device Type
|
Provider Only
|
Cable IR drop Imp(R)
|
0
|
Product Capabilities
Parameter
|
GetCapabilities
|
---|---|
UUT_Device_Type
|
|
Vendor_Name
|
|
Product_Name
|
|
Version_Info
|
|
TID
|
|
Type_C
|
NONE
|
SOP_Capable
|
NONE
|
SOP_P_Capable
|
NONE
|
SOP_PP_Capable
|
NONE
|
SOP_P_Debug_Capable
|
NONE
|
SOP_PP_Debug_Capable
|
NONE
|
Manufacturer_Info_Supported_Port
|
|
Manufacturer_Info_VID_Port
|
|
Manufacturer_Info_PID_Port
|
|
USB_Comms_Capable
|
NO
|
DR_Swap_To_DFP_Supported
|
NO
|
DR_Swap_To_UFP_Supported
|
NO
|
Externally_Powered
|
YES
|
VCONN_Swap_To_On_Supported
|
NONE
|
VCONN_Swap_To_Off_Supported
|
NONE
|
Responds_To_Discov
|
NONE
|
Attempts_Discov
|
NONE
|
Chunking_Implemented_SOP
|
NO
|
Unchunked_Extended_Messages_Supported
|
NO
|
Accepts_PR_Swap_As_Src
|
NO
|
Accepts_PR_Swap_As_Snk
|
NO
|
Requests_PR_Swap_As_Src
|
NONE
|
Requests_PR_Swap_As_Snk
|
NONE
|
XID
|
|
Structured_VDM_Version
|
|
Data_Capable_as_USB_Host
|
NONE
|
Data_Capable_as_USB_Device
|
NONE
|
Product_Type_UFP_SOP
|
|
Product_Type_DFP_SOP
|
|
Modal_Operation_Supported
|
NONE
|
Security_Msgs_Supported_SOP
|
NO
|
USB_VID
|
|
PID
|
|
bcdDevice
|
|
SVIDs Min
|
0
|
SVIDs Max
|
0
|
SVID Fixed
|
NONE
|
Power Capabilities
Parameter
|
GetCapabilities
|
---|---|
PD_Power_as_Sink
|
|
No_USB_Suspend_May_Be_Set
|
NONE
|
GiveBack_May_Be_Set
|
NONE
|
Higher_Capability_Set
|
NONE
|
Num_Snk_PDOs
|
|
PD_Power_as_Source
|
|
Rp Value
|
|
USB Suspend may be cleared
|
NO
|
Send Ping
|
NONE
|
No of Source PDOs
|
|
Supply Type #1
|
Fixed
|
Peak Current #1
|
0x0(A)
|
Voltage #1
|
0x64(5V)
|
Max Current #1
|
0x12C(3A)
|
Supply Type #2
|
Fixed
|
Peak Current #2
|
0x0(A)
|
Voltage #2
|
0xB4(9V)
|
Max Current #2
|
0x12C(3A)
|
Supply Type #3
|
Fixed
|
Peak Current #3
|
0x0(A)
|
Voltage #3
|
0xF0(12V)
|
Max Current #3
|
0x12C(3A)
|
Supply Type #4
|
Fixed
|
Peak Current #4
|
0x0(A)
|
Voltage #4
|
0x12C(15V)
|
Max Current #4
|
0x12C(3A)
|
Supply Type #5
|
Fixed
|
Peak Current #5
|
0x0(A)
|
Voltage #5
|
0x190(20V)
|
Max Current #5
|
0xE1(2.25A)
|
PD_Power_as_Sink
|
|
No_USB_Suspend_May_Be_Set
|
NONE
|
GiveBack_May_Be_Set
|
NONE
|
Higher_Capability_Set
|
NONE
|
Num_Snk_PDOs
|
|
Result Summary
Sl No
|
Test ID
|
Test Name
|
Test Result
|
---|---|---|---|
1
|
TDA.2.1.1.1
|
BMC-PHY-TX-EYE
|
PASS
|
2
|
TDA.2.1.1.2
|
BMC-PHY-TX-BIT
|
PASS
|
3
|
TDA.2.1.2.2
|
BMC-PHY-RX-INT-REJ
|
PASS
|
4
|
TDA.2.1.2.1
|
BMC-PHY-RX-BUSIDL
|
FAIL
|
7
|
TDA.2.2.1
|
BMC-PROT-SEQ-GETCAPS
|
PASS
|
11
|
TDA.2.2.7
|
BMC-PROT-BIST-NOT-5V-SRC
|
PASS
|
13
|
TDA.2.3.1.1
|
POW_SRC_LOAD_P_PC
|
FAIL
|
14
|
TDA.2.3.2.1
|
POW_SRC_TRANS_P_PC
|
PASS
|
15
|
TDB.2.2.9
|
BMC-PROT-GSC-REC
|
FAIL
|
BMC Eye Diagram
We can further observe that the Mi 45W USB Type-C Power Adapter supports charging at different voltages and current levels in the load screenshot below taken from the GRL-USB-PD C2 Compliance Test Solution App.
If you need a USB Power Delivery based charger to keep most of your smaller notebook PC's, tablets, and phones charged over USB Type-C, the Mi 45W USB Type-C Power Adapter would fit well which is also travel friendly. If you need a Xiaomi charger that supports Qualcomm Quick Charge 3.0 technology for Xiaomi phones, you can also consider the Mi 18W QC 3.0 Charger.