SLAAER3A November   2025  – November 2025 AM2611 , AM2611-Q1 , AM2612 , AM2612-Q1 , AM263P2 , AM263P2-Q1 , AM263P4 , AM263P4-Q1 , F29H850DM , F29H850TU , F29H859TU-Q1 , F29P329SM-Q1 , F29P589DM-Q1 , F29P589DU-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Charging Inlet, DCDC, and Host Architectures and Market Trends Toward Integration
    1. 2.1 Standalone Architecture
    2. 2.2 Integration Architecture
    3. 2.3 X-in-1 Architecture
  6. 3Charging Standards Across Regions
    1. 3.1 AC Charging Inlet Standards
    2. 3.2 DC Charging Inlet Standards
  7. 4TI Automotive MCUs for Next-Generation EV Charging
    1. 4.1 MCU Selection and Requirements for Standalone Architecture
    2. 4.2 MCU Selection and Requirements for Integration Architecture
    3. 4.3 MCU Selection and Requirements for X-in-1 Architecture
  8. 5System Block Diagram of a Charging Inlet Control System
  9. 6Conclusion
  10. 7References

3.2 DC Charging Inlet Standards

The DC charging inlet standards for the different countries and regions are shown in Table 3-2. Among these standards, the Chinese national standard, GB/T 20234 [reference 7], the CHAdeMO standard, and the Chao Ji standard, use CAN communication through the S+ and S– (C–H and C–L) pins. The DC communication protocols, DIN70121 and ISO15118 of CCS1 and CCS2, and NACS, use the PLC communication protocols for DC fast charging.

Table 3-2 DC Charging Inlet Standards
DC Charging Inlet Standards
StandardGB/T 20234ISO15118
/DIN70121		CHAdeMOCHAOJINACS
RegionCHNEU (CCS2)/NA (CCS1)JPNCHN/JPNNA (CCS1)
PowerDC+/DC–DC+/DC–DC+/DC–DC+/DC–L/N
SignalsCC1/CC2CP/PPSS1/SS2/DCP/PPCC1/CC2PP/CP
CommunicationCAN (S+/S–)PLC (CP)CAN (C–H/C–L)CAN (S+/S–)PLC (CP)
BIASA+/A– (1)--A+/A–(1)-
(1) A+ and A– are the positive and negative output pins of 12V bias power supply.

Additionally, the CHAdeMO Association collaborated with China to develop an ultra-fast inlet capable of charging up to 900kW—the ChaoJi charging standard, referenced as CHAdeMO 3.0. These emerging fast-charging protocols continue to increase the charging power and speed of EVs. Recently, CharIN partnered with several OEMs and suppliers to introduce the MCS (megawatt charging system) charging inlet to meet the needs of trucks and buses.

As the electric vehicle market continuous to development, the charging standards are continuously updated and evolving. These updates include support for bidirectional communication protocols like V2X, PnC (plug and charge), and WPT (wireless power transfer) for smart charging management.

See the References section for more information on these standards.