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20W Qi Wireless Charger

by Xiaomi

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Xiaomi Qi Wireless Charger Offers 20W to Quickly Charge Your Xiaomi Mi 9 Phone

Xiaomi has bumped up its Qi Wireless Charger to offer one of the fastest wireless charging up to 20 watts. Note the Xiaomi Qi charger only enables 20W wireless charging for certain Xiaomi phones like the Xiaomi Mi 9. Other non Xiaomi Qi-enabled phones can only get 5 watts of Qi Low Power charging using the Xiaomi Qi Wireless Charger

The Xiaomi Qi Wireless Charger sports the Qi logo on the back of its box claiming to be Qi certified with 20W wireless charging support. The Qualcomm Quick Charge logo on the box also indicates the Xiaomi charger supporting Qualcomm Quick Charge based input charging meaning the charger can negotiate with a Qualcomm Quick Charge based charger for own power supply. Note that it does not seem to display the proper Quick Charge logo.

The Xiaomi Qi Wireless Charger comes with its own AC power adapter accessory with a separate USB Type-A to Type-C charging cable and documentation. 

The c uses a USB Type-A based Qualcomm Quick Charge 3.0 enabled charger for up to 20 volts charging in, supporting power profiles of 15 watts (5 volts @ 3 amps), 27 watts (9 volts @ 3 amps), 27 watts (12 volts @ 2.25 amps) and 27 watts (20 volts @ 1.35 amps).

Note if you happen to look for a AC charger to quickly charge your Xiaomi phones, you can opt for the 27W QC3 Charger by Xiaomi to get up to 27W power supply through Qualcomm Quick Charge 3.0 standard. 

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 can see that the Xiaomi Qi Wireless Charger supports 10 watts (5 volts @ 2 amps) power profile for charging in. Some compliance failures were also observed for this Qi charger.

Sink Capabilities

Parameter

GetCapabilities

Snk_PDO_Supply_Type #1

Fixed

Snk_PDO_Voltage #1

5V

Snk_PDO_Op_Current #1

2A

Power Delivery 3.0 Tests- Result Summary

Sl No

Test ID

Test Name

Test Result

1

TD.PD.LL3.E1

TD.PD.LL3.E1 GoodCRC Specification Revision compatibility

PASS

2

TD.PD.LL3.E2

TD.PD.LL3.E2 Retransmission

PASS

3

TD.PD.LL3.E3

TD.PD.LL3.E3 GoodCRC Compatibility with PD2

PASS

4

TD.PD.SNK3.E1

TD.PD.SNK3.E1 Request Fields Checks

PASS

5

TD.PD.SNK3.E2

TD.PD.SNK3.E2 Unrecognized Message Received in Ready State

PASS

6

TD.PD.SNK3.E3

TD.PD.SNK3.E3 Get Source Cap Extended Fields Checks

PASS

7

TD.PD.SNK3.E4

TD.PD.SNK3.E4 SenderResponseTimer Deadline Source Capabilities Extended

PASS

8

TD.PD.SNK3.E5

TD.PD.SNK3.E5 SenderResponseTimer Timeout Source Capabilities Extended

PASS

9

TD.PD.SNK3.E6

TD.PD.SNK3.E6 Get Status Fields Checks

PASS

10

TD.PD.SNK3.E7

TD.PD.SNK3.E7 Get Battery Status Fields Checks

PASS

11

TD.PD.SNK3.E8

TD.PD.SNK3.E8 Status sent timely

PASS

12

TD.PD.SNK3.E9

TD.PD.SNK3.E9 Manufacturer Info Sent Timely

PASS

13

TD.PD.SNK3.E10

TD.PD.SNK3.E10 Source Capabilities Extended sent timely

PASS

14

TD.PD.SNK3.E11

TD.PD.SNK3.E11 Receiving chunked extended message

PASS

15

TD.PD.SNK3.E12

TD.PD.SNK3.E12 Soft Reset sent regardless of Rp value

PASS

16

TD.PD.SNK3.E13

TD.PD.SNK3.E13 SinkPPSPeriodicTimer Timeout

PASS

17

TD.PD.SNK3.E14

TD.PD.SNK3.E14 Request Fields Checks PPS

FAIL

18

TD.PD.SNK3.E15

TD.PD.SNK3.E15 Status Fields Checks

FAIL

19

TD.PD.SNK3.E16

TD.PD.SNK3.E16 Manufacturer Info Fields Checks

PASS

20

TD.PD.SNK3.E17

TD.PD.SNK3.E17 Manufacturer Info Fields Checks Invalid Manufacturer Info Target

FAIL

21

TD.PD.SNK3.E18

TD.PD.SNK3.E18 Manufacturer Info Fields Checks Invalid Manufacturer Info Ref

FAIL

22

TD.PD.SNK3.E19

TD.PD.SNK3.E19 ChunkSenderResponseTimer Timeout

PASS

23

TD.PD.VDM3.E1

TD.PD.VDM3.E1 Fields Checks Discover Identity

PASS

24

TD.PD.VDM3.E2

TD.PD.VDM3.E2 Unrecognized VID in Unstructured VDM

PASS

30

TD.PD.VNDI3.E7

TD.PD.VNDI3.E7 Security Msgs Supported

FAIL

PD2 Deterministic Tests- Result Summary

Sl No

Test ID

Test Name

Test Result

1

TD.PD.LL.E1

TD.PD.LL.E1 GoodCrc Timing

PASS

2

TD.PD.LL.E2

TD.PD.LL.E2 Retransmission

PASS

3

TD.PD.LL.E3

TD.PD.LL.E3 Soft Reset Usage

PASS

4

TD.PD.LL.E4

TD.PD.LL.E4 Hard Reset Usage

PASS

5

TD.PD.LL.E5

TD.PD.LL.E5 Soft Reset

PASS

6

TD.PD.LL.E6

TD.PD.LL.E6 Ping

PASS

7

TD.PD.SNK.E1

TD.PD.SNK.E1 SinkWaitCapTimer Deadline

PASS

8

TD.PD.SNK.E2

TD.PD.SNK.E2 SinkWaitCapTimer Timeout

PASS

9

TD.PD.SNK.E3

TD.PD.SNK.E3 Request Sent Timely

PASS

10

TD.PD.SNK.E4

TD.PD.SNK.E4 Request Fields Checks

PASS

11

TD.PD.SNK.E5

TD.PD.SNK.E5 SenderResponseTimer Deadline Accept

PASS

12

TD.PD.SNK.E6

TD.PD.SNK.E6 SenderResponseTimer Timeout Accept

PASS

13

TD.PD.SNK.E7

TD.PD.SNK.E7 PSTransitionTimer Deadline

PASS

14

TD.PD.SNK.E8

TD.PD.SNK.E8 PSTransitionTimer Timeout

PASS

15

TD.PD.SNK.E9

TD.PD.SNK.E9 GetSinkCap in Place of Accept

PASS

16

TD.PD.SNK.E10

TD.PD.SNK.E10 GetSinkCap in Place of PS RDY

PASS

18

TD.PD.VDMU.E1

TD.PD.VDMU.E1 Fields Checks Discover Identity

PASS

19

TD.PD.VDMU.E2

TD.PD.VDMU.E2 Fields Checks Discover SVIDs

PASS

20

TD.PD.VDMU.E3

TD.PD.VDMU.E3 Fields Checks Discover Modes

PASS

21

TD.PD.VDMU.E4

TD.PD.VDMU.E4 Fields Checks Enter Mode

PASS

22

TD.PD.VDMU.E5

TD.PD.VDMU.E5 Fields Checks Exit Mode

PASS

23

TD.PD.VDMU.E6

TD.PD.VDMU.E6 tVDMReceiverResponse Discover Identity

PASS

24

TD.PD.VDMU.E7

TD.PD.VDMU.E7 tVDMReceiverResponse Discover SVIDs

PASS

25

TD.PD.VDMU.E8

TD.PD.VDMU.E8 tVDMReceiverResponse Discover Modes

PASS

26

TD.PD.VDMU.E9

TD.PD.VDMU.E9 tVDMReceiverResponse Enter and Exit Mode

PASS

27

TD.PD.VDMU.E10

TD.PD.VDMU.E10 Incorrect SVID_Discover Identity

PASS

28

TD.PD.VDMU.E11

TD.PD.VDMU.E11 Incorrect SVID Discover SVIDs

PASS

29

TD.PD.VDMU.E12

TD.PD.VDMU.E12 Incorrect SVID Discover Modes

PASS

30

TD.PD.VDMU.E13

TD.PD.VDMU.E13 Incorrect SVID Enter Mode

PASS

31

TD.PD.VDMU.E14

TD.PD.VDMU.E14 Incorrect SVID Exit Mode

PASS

32

TD.PD.VDMU.E15

TD.PD.VDMU.E15 Applicability

PASS

33

TD.PD.VDMU.E16

TD.PD.VDMU.E16 Interruption by PD Command

PASS

34

TD.PD.VDMU.E17

TD.PD.VDMU.E17 Interruption by VDM Command

PASS

35

TD.PD.VDMU.E18

TD.PD.VDMU.E18 tDRSwapHardReset

PASS

42

TD.PD.PHY.E1

TD.PD.PHY.E1 BIST Test Data

PASS

45

TD.PD.PHY.E4

TD.PD.PHY.E4 Transmitter Bit Rate and Bit Rate Drift

FAIL

46

TD.PD.PHY.E5

TD.PD.PHY.E5 Transmitter Collision Avoidance

PASS

47

TD.PD.PHY.E6

TD.PD.PHY.E6 Receiver Swing Tolerance

PASS

48

TD.PD.PHY.E7

TD.PD.PHY.E7 Receiver Bit Rate Tolerance

PASS

49

TD.PD.PHY.E8

TD.PD.PHY.E8 Receiver Bit Rate Deviation Tolerance

PASS

50

TD.PD.PHY.E9

TD.PD.PHY.E9 Valid SOP Framing

PASS

51

TD.PD.PHY.E10

TD.PD.PHY.E10 Invalid SOP Framing

PASS

52

TD.PD.PHY.E11

TD.PD.PHY.E11 Valid SOP P Framing

PASS

53

TD.PD.PHY.E12

TD.PD.PHY.E12 Invalid SOP P Framing

PASS

54

TD.PD.PHY.E13

TD.PD.PHY.E13 Valid SOP PP Framing

PASS

55

TD.PD.PHY.E14

TD.PD.PHY.E14 Invalid SOP PP Framing

PASS

56

TD.PD.PHY.E15

TD.PD.PHY.E15 SOP P_Debug SOP PP Debug Framing

PASS

57

TD.PD.PHY.E16

TD.PD.PHY.E16 Valid Hard Reset Framing

PASS

58

TD.PD.PHY.E17

TD.PD.PHY.E17 Invalid Hard Reset Framing

PASS

59

TD.PD.PHY.E18

TD.PD.PHY.E18 Valid Cable Reset Framing

PASS

60

TD.PD.PHY.E19

TD.PD.PHY.E19 Invalid Cable Reset Framing

PASS

61

TD.PD.PHY.E20

TD.PD.PHY.E20 EOP Framing

PASS

62

TD.PD.PHY.E21

TD.PD.PHY.E21 Preamble

PASS

PD2 Communication Engine Tests- Result Summary

Sl No

Test ID

Test Name

Test Result

2

TDA.2.1.1.2

TDA.2.1.1.2 BMC PHY TX BIT

FAIL

3

TDA.2.1.2.2

TDA.2.1.2.2 BMC PHY RX INT REJ

PASS

4

TDA.2.1.2.1

TDA.2.1.2.1 BMC PHY RX BUSIDL

PASS

5

TDA.2.1.3.1

TDA.2.1.3.1 BMC PHY TERM

PASS

6

TDA.2.1.3.2

TDA.2.1.3.2 BMC PHY MSG

PASS

7

TDA.2.2.1

TDA.2.2.1 BMC PROT SEQ GETCAPS

PASS

14

TDA.2.3.3.1

TDA.2.3.3.1 POW SNK TRANS C CP

FAIL

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