Introduce

With the rapid development of fast charging technology, ensuring efficient and stable connections and data exchange between devices is crucial. For protocol analysis in fast charging, the ability to accurately capture detailed protocol data is key to the research and advancement of this technology.

ChargerLAB POWER-Z ET240: Top Features at a Glance-Chargerlab

To meet this need, ChargerLAB POWER-Z has launched a brand new product — the ET240 PD Protocol Analyzer, a convenient device for debugging USB Type-C PD products. It can monitor voltage and current on Type-C CC1 / CC2 / VBUS, and decode PD packets, DisplayPort auxiliary channel messages, and USB4 sideband messages. Today, we’ll briefly introduce its five key features, aimed at helping technical professionals work more efficiently in product development, testing, and troubleshooting.

Highlight 1: Voltage and Current Measurements

ChargerLAB POWER-Z ET240: Top Features at a Glance-Chargerlab
  1. High-precision voltage and current measurement

-Monitor VBUS and VCONN by INA228

-85V, 20-bit, ultra-precise voltage/current monitoring

  1. Example : Observing voltage fluctuations under different loads can help debug power stability issues.

File: VoltageCurrent_Down_10_Level.gz

Highlight 2: Debug PD Protocol

ChargerLAB POWER-Z ET240: Top Features at a Glance-Chargerlab
ChargerLAB POWER-Z ET240: Top Features at a Glance-Chargerlab
ChargerLAB POWER-Z ET240: Top Features at a Glance-Chargerlab
  1. Detailed packet decoding: SOP / SOP' / SOP” — for PD Controllers and E-Markers
  2. Support for USB PD Compliance Test
  3. Example: During CTS cable testing, SOP' communication flow can be verified with trace data for accuracy.

Files:

  • 2024-05-29 160636024 - USB Compliance Report.html
  • 2024-05-29 160636024_cbl1.gz

Highlight 3: DisplayPort Alt Mode and AUX Analysis 1

ChargerLAB POWER-Z ET240: Top Features at a Glance-Chargerlab
ChargerLAB POWER-Z ET240: Top Features at a Glance-Chargerlab
ChargerLAB POWER-Z ET240: Top Features at a Glance-Chargerlab
  1. Support for PD BMC ALT Mode and DP AUX Channel

-Native AUX Message, I2C over AUX Message

-DisplayPort Link Training Flow

2、Example:

File: 732D_CtoDP_OK.gz

Highlight 4: DisplayPort Alt Mode and AUX Analysis 2

ChargerLAB POWER-Z ET240: Top Features at a Glance-Chargerlab
ChargerLAB POWER-Z ET240: Top Features at a Glance-Chargerlab
  1. Validation of market compatibility issues
  2. Example:

File:

  • BenQ Monitor_ALT DP Configure pinassC_No Display.gz
  • BenQ Monitor_ALT DP Configure pinassE_Display OK.gz

Highlight 5: USB4 / Thunderbolt 3 Sideband (SB) Channel Analysis

ChargerLAB POWER-Z ET240: Top Features at a Glance-Chargerlab
ChargerLAB POWER-Z ET240: Top Features at a Glance-Chargerlab
  1. Development support for new USB4 products
  2. Examples:

File:

  • 04_pd_bmc_usb4_sideband.gz
  • 05_pd_bmc_tbt3_HP_Spectre_13_BenQ_PD2725U_TBT_Mode.gz
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Related Articles：
1. Inventory of 10 Commonly Used Functions of Power-Z KM003C
2. ChargerLAB POWER-Z Tester Now Available on Amazon.de, UK & FR –A Must-Have Tool for Charging Enthusiasts!
3. Unboxing of the Brand New ChargerLAB POWER-Z ET240 PD Protocol Analyzer