The AC7840x is an ASIL-B compliant AUTOSAR automotive-grade MCU based on ARM Cortex-M4F, launched in 2022. It meets AEC-Q100 Grade 1 certification, complies with ISO 26262 ASIL-B functional safety standards, and adheres to SHE security standards with secure boot support. The software ecosystem supports AUTOSAR MCAL4.4, providing MCAL and configuration tools. Featuring dual-bank Flash for OTA updates, the AC7840x is widely applicable in automotive body control, new energy BMS, cockpit systems, lighting, and motor control applications. Product specifications are as follows:

The AC7801x is a cost-effective automotive-grade 32-bit MCU based on ARM Cortex-M0+ core, featuring 128KB Flash, 20KB RAM, one CAN-FD channel, and available in LQFP48 and QFN32 packages. With integrated division/square root unit, it has been widely adopted in automotive electronics, new energy BMS, and motor control applications (the currently mass-produced AC7803X series is also suitable for BMS slave controllers).
Product specifications are as follows:

The chip features a 32-bit Cortex-M4 CPU based on ARMv7-M architecture, integrating FPU, MPU, DSP with SIMD instructions, ETM for full instruction trace, and CoreSight debug unit. With a maximum operating frequency of 240MHz, it delivers 300 DMIPS or 825 Coremarks performance. On-chip memory includes up to 2048KByte dual bank Flash and 516KByte SRAM (with 128KByte single-cycle access high-speed RAM). Please refer to the product introduction below for details.

The FC4150 product family is a high-performance automotive-grade MCU based on Cortex-M4F core, featuring DSP instructions, FPU, and 8KB instruction cache. It supports ASIL-B functional safety level with built-in HSM hardware encryption engine. Operating at up to 150MHz, it offers 2MB Flash, 256KB D-Flash, and up to 256KB ECC-protected SRAM.
The MCU provides rich peripherals and communication interfaces, including:
10/100Mbps Ethernet with IEEE1588 and AVB support
6 FlexCAN modules (partial support for CAN-FD and PNET)
Certified to AEC-Q100 Grade 1 standards.
Product specifications are as follows:

The FC4150Fx Series offers the following model options:

LEN Technology founded in 2017, is a leading domestic supplier of automotive-grade analog chips, specializing in automotive IC development and quality management systems. The company has established a complete automotive chip quality management system and standardized product development process (APQP).
Current product offerings include automotive-grade DC-DC converters, LDOs, LED drivers, and high-side drivers, serving multiple domains: autonomous driving, new energy/powertrain, infotainment, chassis safety, and body electronics.

New Energy Powertrain 12V/24V BMS power solutions are as follows:

BUCK型DCDC: LN10X43Q1系列（12V系统）/ LN10X63Q1系列（24V系统）

LDO: LN20X4YQ1系列
    

 高边开关：LNQ37100Q1/ LNQ37160Q1

RHC is a fabless semiconductor design company incorporated in February 2023. Founded by former Maxim Integrated engineers, the team brings strong technical expertise and extensive market experience.
Product introductions are as follows:

SIT as China's first analog IC manufacturer with both CAN and LIN transceiver chips, has launched over 40 CAN/CAN FD/LIN transceiver models with 200M+ units shipped. Its products are widely used in automotive systems, making it the most comprehensive and mature IC designer in this segment. The company's RS485/RS422/RS232 interface chips also serve industrial, communication, and security applications.

BMS Solutions:

SIT1043Q/SIT1042AQ/SIT1051AQ - Enable CAN FD/LIN communication between gateways and battery management units (BMUs), which control individual batteries via CAN buses. These chips support BMS information exchange with other systems.

KKchip specializes in automotive-grade mixed-signal ICs, addressing technology gaps and localization needs in powertrain and chassis applications. Its portfolio spans Smart MOS, PMIC, SBC, and U-Chip series, serving engines, new-energy vehicle control, chassis systems, airbags, and BMS, with a focus on high-safety, high-reliability automotive ICs.

BMS Solutions:

HELS121/HELS121D - Single/dual-channel self-protected low-side drivers with:
Package: SOT-223/ESOP-8
Rds(on): 120mΩ
Current: 3.5A (operating)
Clamp voltage: 40V
Temp range: -40°C to +125°C

Founded in 2017, 2PAI Semiconductor specializes in high-performance analog IC design, with products including digital isolators, drivers (Si/SiC MOSFET, IGBT), interfaces (CAN, RS485, I2C), and signal chain components (amplifiers, ADCs). These are widely used in EVs, industrial control, power systems, and consumer electronics, with performance comparable to or exceeding leading global alternatives.
BMS Solutions:
Pai141E60Q/Pai141E61Q: Isolated SPI communication between battery controller MCU and CSU interface MCU (compatible with TI ISO774x/F)
Pai8558EQ: Insulation monitoring and relay diagnostics (compatible with Broadcom QCPL-A58/Toshiba TLX9160T)
Pai8300Q: Isolated current sensing (compatible with TI AMC1301/1300)
Pai8311Q: Isolated voltage sensing (compatible with TI AMC1311)

In BMS systems, EEPROM (Electrically Erasable Programmable Read-Only Memory) stores battery configuration parameters, historical data, and safety records, enabling system state recovery after reboot and tracking battery performance/lifespan.
FT24AXX: AEC-Q100 certified (-40°C to +125°C). Launched in 2005 as part of a full EEPROM series leveraging foundry processes for high-performance, cost-effective chips, featuring the industry's smallest 2Kbit capacity.

Founded in May 2011, Raystar specializes in analog clock signal chain IC design and sales, focusing on domestic chip substitution. Its product portfolio includes XO oscillators, RTCs (general-purpose, crystal-integrated, high-precision TCXO), clock buffers (CMOS/multi-output/differential), clock generators (spread spectrum/PCIe/Ethernet), level shifters, op-amps, and high-speed analog switches.
BMS Solution:
RS4TC8900 - This automotive-grade RTC serves as a BMS wake-up source for sleep/operation management and SOC algorithm calibration. It provides timestamps for historical data and fault logs, featuring:
Low power consumption
3ppm accuracy (85°C) / 5ppm (105°C automotive)
Backup battery support
3225 package (RX8900 compatible)

Runic Tech specializes in automotive signal chain solutions (op-amps, comparators, analog switches) for key systems including:
Electrification (OBC/DC-DC/VCU)
BMS (signal conditioning & safety monitoring)
Body electronics & smart cockpit

BMS Critical Component
ZMJ's automotive-grade MOSFETs deliver reliable battery charge/discharge control with:
175℃ max junction temp
High EAS capability
Superior surge current handling
Tight Vth consistency
Low Rdson
Proven Performance
Validated in mass-production BMS applications.

Company Profile
A subsidiary of HT-tech, HUAYI Microelectronics specializes in R&D and production of 20V-150V power MOSFETs, combining advanced wafer design with certified packaging (TS16949).
Key Features
Exceeds AEC-Q101 standards
Dedicated automotive production lines
Applications: EV, BMS, motor drives, 5G infrastructure