NXP i.MX93 SOM-based SECC/HMI Reference Design
for EV chargers

As the electric vehicle (EV) revolution continues to gain momentum worldwide, the role of EVCC (EV Charge Controller) also known as SECC (Supply Equipment Charge Controller) has become crucial for ensuring secure communications and smooth charging operations. The SECC acts as a central communication module for integration with charging infrastructure via standards & protocols, secure wired & wireless connectivity and high-voltage safety measures for reliable charging operations.

eInfochips SECC (Supply Equipment Charge Controller) is an NXP i.MX93 SOM-based HMI Reference Design for EV chargers. It supports OCPP and ISO15118 V2G protocols to facilitate communication between EVs and charging infrastructure for safe & efficient charging operations. eInfochips SECC features a large touch-screen HMI display, Speaker & LED notifications, CAN/Ethernet/Wi-Fi connectivity and NFC for secure authentication & payment integration. To ensure maximum safety and reliability, SECC supports built-in energy metering, emergency stop button and electrical safety mechanisms.

Key Features

Multicore ARM Cortex Processor

10” LCD Display (1000 NITS)

OCPP 1.6J Support for Smart Charging

ISO 15118 Support for Bi-directional Charging

CCS1 / CCS2, IEC 62196 charging communication standards

RFID/NFC Support for User Authentication (ISO 14443/ ISO 15693)

Isolated CAN Communication with Power Unit

LED Indications (Power, Fault, Charging)

DC+ & DC- Charging Contacts Temperature Sensing Support

SECC At-a-Glance

secc

Technical Specifications

Specifications
Description
Processor
NXP i.Mx93 SOM (EIC-i.MX93-210)
PLC Communication with HPGP
Supported (QCA7000 / QCA7005), P2P, P2MP
Display Interface
4-lanes LVDS and CSI ports
Touch Interface
Touch controller over I2C port
Network Communication
OCPP V1.6
Vehicle Communication
ISO15118, IEC 61851-23, -24
Charging Interface
CCS1 / CCS2, IEC 62196
Wi-Fi + BT/BLE
88W8997 CSP (COTS Module) (802.11 a/b/n/ac, BT/BLE 5.0)
NFC
Available (ISO/IEC 14443)
Network Interface
2X Gigabit Ethernet RJ45 Ports
CAN Bus
2X CAN Ports (Isolated)
Status LED
3X LEDs on front panel for status
Emergency Stop
Yes
Energy Metering
Supported
Input Supply
90-240VAC and 12VDC inputs
Operating Temperature
-30°C to +60°C*
Target Certification*
CE, FCC, UL, IEC, RoHS, REACH

IP / Frameworks

eInfochips DC Fast Charger Reference Design

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