Linocell 45W PD Car Charger Offers 2-in-1 Charging with USB Power Delivery and Qualcomm Quick Charge

The Linocell 45W PD Car Charger supports both USB Power Delivery (PD) and Qualcomm Quick Charge (QC) standards for rapid charging through the DC power outlet of your car. This allows you to quickly charge your USB PD enabled phones and tablets at 15 volts and notebook PC's at 20 volts or your QC enabled phones up to 18W.  

The Linocell 45W PD Car Charger uses 45 watts (20 volts @ 2.25 amps), 45 watts (15 volts @ 3 amps) or 15 watts (5 volts @ 3 amps) power profiles for USB PD 2.0 charging over its Type-C output port as stated on its packaging. The charger claims to also at most supply 18 watts for QC 3.0 charging using 15 watts (5 volts @ 3 amps), 18 watts (9 volts @ 2 amps) and 18 watts (12 volts @ 1.5 amps) power profiles through its Type-A output port. 

It's fastest to charge your USB Power Delivery capable devices like the Apple's 11-inch iPad Pro (2018) and MacBook 12" Retina 2017 or the Dell XPS 13 9370 and the Google Pixelbook using a USB Type-C to Type-C cable or your iPhone X with the Apple USB-C to Lightning Cable. You can also use a USB Type-C to Type-A cable if you want to charge QC based phones like the LG, HTC, ZTE and Motorola phones or any other standard smartphones and tablets.

There is no cable accessory for the Linocell 45W PD Car Charger which means you will need to use your own cable with the charger.  

To observe the power capabilities of the Linocell 45W PD Car Charger, we used the USB Power Test App from Granite River Labs with the Granite River Labs USB Power Delivery Compliance C2 Tester to generate the following test results.

The USB Power Test App first negotiates a power contract for every PDO supported by the Linocell 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 reports out all the PDO's supported by the Linocell charger and their OCP thresholds. Note the 9V OCP is missing which is part of USB-IF spec requirements for a power charger. OCP threshold is also very high for the 20V PDO.

PDO	OCP
PDO#1 Fixed: 5V 3A	3.78
PDO#2 Fixed: 15V 3A	4.27
PDO#3 Fixed: 20V 2.25A	5.35

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. We can observe current fold-back behavior as well as voltage instability when the current approaches the OCP trigger point for each PDO. We can see that the current for 20V PDO just drops without reaching the 5.35A OCP threshold.

Using the USB Power Test App and FLIR thermal imaging tools, we measured the heat emitted by the Linocell charger as seen in the following temperature graph for the highest 20V, 2.25A PDO, which recorded max temperature of around 62.3 degree Celsius.

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 confirm that the Linocell charger supports the following fixed PDO's as claimed- 15 watts (5 volts @ 3 amps), 45 watts (15 volts @ 3 amps) and 45 watts (20 volts @ 2.25 amps). Note a compliance failure was also observed for this charger.

Source Capabilities

Parameter	GetCapabilities
Src_PDO_Supply_Type #1	Fixed
Src_PDO_Voltage #1	5000
Src_PDO_Max_Current #1	3000
Src_PDO_Supply_Type #2	Fixed
Src_PDO_Voltage #2	15000
Src_PDO_Max_Current #2	3000
Src_PDO_Supply_Type #3	Fixed
Src_PDO_Voltage #3	20000
Src_PDO_Max_Current #3	2250

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.SRC.E1	TD.PD.SRC.E1 Source Capabilities sent timely	PASS
7	TD.PD.SRC.E2	TD.PD.SRC.E2 Source Capabilities Fields Checks	PASS
8	TD.PD.SRC.E3	TD.PD.SRC.E3 SourceCapabilityTimer Timeout	PASS
9	TD.PD.SRC.E4	TD.PD.SRC.E4 SenderResponseTimer Deadline Request	PASS
10	TD.PD.SRC.E5	TD.PD.SRC.E5 SenderResponseTimer Timeout Request	PASS
11	TD.PD.SRC.E6	TD.PD.SRC.E6 PSHardResetTimer Timeout	PASS
12	TD.PD.SRC.E7	TD.PD.SRC.E7 Accept sent timely	PASS
13	TD.PD.SRC.E8	TD.PD.SRC.E8 Accept Fields Checks	PASS
14	TD.PD.SRC.E9	TD.PD.SRC.E9 PS RDY sent timely	PASS
15	TD.PD.SRC.E10	TD.PD.SRC.E10 PS RDY Fields Checks	PASS
16	TD.PD.SRC.E11	TD.PD.SRC.E11 Accept Requests can be met	PASS
17	TD.PD.SRC.E12	TD.PD.SRC.E12 Reject Requests cannot be met	PASS
18	TD.PD.SRC.E13	TD.PD.SRC.E13 Reject Request Invalid Object Position	PASS
19	TD.PD.SRC.E14	TD.PD.SRC.E14 Atomic Message Sequence	PASS
20	TD.PD.SRC.E15	TD.PD.SRC.E15 Give Source Cap	PASS
21	TD.PD.SRC.E16	TD.PD.SRC.E16 PDO Transition	PASS
24	TD.PD.VDMD.E3	TD.PD.VDMD.E3 Incorrect Fields Discover Identity	PASS
25	TD.PD.VDMD.E4	TD.PD.VDMD.E4 Applicability	PASS
28	TD.PD.PHY.E1	TD.PD.PHY.E1 BIST Test Data	PASS
31	TD.PD.PHY.E4	TD.PD.PHY.E4 Transmitter Bit Rate and Bit Rate Drift	PASS
32	TD.PD.PHY.E5	TD.PD.PHY.E5 Transmitter Collision Avoidance	PASS
33	TD.PD.PHY.E6	TD.PD.PHY.E6 Receiver Swing Tolerance	PASS
34	TD.PD.PHY.E7	TD.PD.PHY.E7 Receiver Bit Rate Tolerance	PASS
35	TD.PD.PHY.E8	TD.PD.PHY.E8 Receiver Bit Rate Deviation Tolerance	PASS
36	TD.PD.PHY.E9	TD.PD.PHY.E9 Valid SOP Framing	PASS
37	TD.PD.PHY.E10	TD.PD.PHY.E10 Invalid SOP Framing	PASS
38	TD.PD.PHY.E11	TD.PD.PHY.E11 Valid SOP P Framing	PASS
39	TD.PD.PHY.E12	TD.PD.PHY.E12 Invalid SOP P Framing	PASS
40	TD.PD.PHY.E13	TD.PD.PHY.E13 Valid SOP PP Framing	PASS
41	TD.PD.PHY.E14	TD.PD.PHY.E14 Invalid SOP PP Framing	PASS
42	TD.PD.PHY.E15	TD.PD.PHY.E15 SOP P_Debug SOP PP Debug Framing	PASS
43	TD.PD.PHY.E16	TD.PD.PHY.E16 Valid Hard Reset Framing	PASS
44	TD.PD.PHY.E17	TD.PD.PHY.E17 Invalid Hard Reset Framing	PASS
45	TD.PD.PHY.E18	TD.PD.PHY.E18 Valid Cable Reset Framing	PASS
46	TD.PD.PHY.E19	TD.PD.PHY.E19 Invalid Cable Reset Framing	PASS
47	TD.PD.PHY.E20	TD.PD.PHY.E20 EOP Framing	PASS
48	TD.PD.PHY.E21	TD.PD.PHY.E21 Preamble	PASS

PD2 Communication Engine Tests- Result Summary

Sl No	Test ID	Test Name	Test Result
1	TDA.2.1.1.1	TDA.2.1.1.1 BMC PHY TX EYE	PASS
2	TDA.2.1.1.2	TDA.2.1.1.2 BMC PHY TX BIT	PASS
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
8	TDA.2.2.2.1	TDA.2.2.2.1 BMC PROT SEQ CHKCAB P PC	PASS
13	TDA.2.2.7	TDA.2.2.7 BMC PROT BIST NOT 5V SRC	PASS
15	TDA.2.2.9	TDA.2.2.9 BMC PROT GSC REC	FAIL
16	TDA.2.3.1.1	TDA.2.3.1.1 POW SRC LOAD P PC	PASS
17	TDA.2.3.2.1	TDA.2.3.2.1 POW SRC TRANS P PC	PASS

BMC Eye Diagram