Automotive Body Control Solution

Application

Description

Complete MCU-based solution for automotive body control applications including door modules, window lift, and seat control

Core Advantages

Complete Solution Hardware, software, and documentation package provides everything needed for rapid implementation

Automotive Qualified All components AEC-Q100 qualified with full PPAP documentation available

EMC Optimized Design optimized for automotive EMC requirements with proven CISPR 25 compliance

Cost Effective Optimized BOM cost compared to international competitor solutions

Local Support LiTong FAE team provides responsive local technical support

Recommended Bill of Materials (BOM)

Item	Part Number	Description	Quantity	Datasheet
1	ASM87F1612	Main controller MCU	1	📄 Download
2	SL7205	5V LDO regulator	1	📄 Download

Applications

Door Control Modules

Window Lift Controllers

Seat Control Systems

Mirror Control Modules

HVAC Control Panels

Technical Specifications

M C U Core

Enhanced 8051, 24MHz

Flash Memory

16KB

R A M

1KB

G P I O

Up to 28 pins

P W M Channels

6 channels

A D C

12-bit, 12 channels

Communication

CAN, LIN, UART, SPI, I2C

Operating Voltage

9V - 16V

Quiescent Current

< 5mA (typical)

E M C Compliance

CISPR 25 Class 5

Customer Success Stories

Tier-1 Automotive Supplier

Automotive Electronics | Door Control Module

Challenge

Customer needed to develop a cost-effective door control module for a new vehicle platform with aggressive cost targets and tight timeline.

Solution

Implemented SineMicro Body Control Solution using ASM87F1612 MCU. Customized reference design for specific door control requirements including window lift, mirror control, and lock control.

Results

Successfully passed all OEM qualification tests including EMC and environmental. Achieved 25% cost reduction compared to previous solution. Production ramp completed on schedule.

FAE Expert Insights

Michael Zhang

Senior FAE - Automotive Electronics

15 years

Professional Insights

Key considerations: Choose MCU resources based on actual application requirements; EMC design is critical for reliable body control operation; Reference designs significantly accelerate development; Local support is valuable for troubleshooting and optimization; Cost optimization should not compromise automotive reliability. Common pitfalls to avoid: Over-specifying MCU resources leading to unnecessary cost; Underestimating EMC requirements for body control modules; Not planning for production test and programming; Ignoring thermal considerations in compact enclosures.

Key Takeaways

Choose MCU resources based on actual application requirements
EMC design is critical for reliable body control operation
Reference designs significantly accelerate development
Local support is valuable for troubleshooting and optimization
Cost optimization should not compromise automotive reliability

Decision Framework

Steps:

Evaluate requirements
Compare solutions
Consult FAE

Ready to Implement This Solution?

Contact our FAE team for design support and quotes

Frequently Asked Questions

What communication protocols are supported in the body control solution?

The Body Control Solution supports multiple automotive communication protocols: 1) CAN 2.0B - Controller Area Network for high-speed vehicle communication (up to 500kbps). Supports standard and extended message IDs. 2) LIN 2.x - Low-cost serial communication for sensor and actuator networks (up to 20kbps). Supports master and slave configurations. 3) UART - Universal Asynchronous Receiver/Transmitter for diagnostic and debug interfaces. 4) SPI - Serial Peripheral Interface for high-speed communication with external devices. 5) I2C - Inter-Integrated Circuit for communication with sensors and EEPROMs. The ASM87F1612 MCU includes hardware support for all these protocols with dedicated peripherals. Software libraries provide easy implementation of protocol stacks. For gateway applications, the solution can bridge between different protocols.

Solution supports all major automotive communication protocols. Select based on vehicle network architecture requirements.

How is motor control implemented in the solution?

Motor control implementation in the Body Control Solution: 1) DC Motor Control - uses PWM outputs with H-bridge drivers for bidirectional motor control. Features include speed control, current limiting, and stall detection. 2) PWM Generation - 6 independent PWM channels with 16-bit resolution support precise speed and position control. 3) Current Sensing - integrated ADC channels measure motor current for over-current protection and stall detection. 4) Position Feedback - ADC inputs support potentiometer or hall sensor feedback for position-controlled applications. 5) Protection Features - software includes over-current protection, thermal protection, and anti-pinch algorithms for window lift applications. 6) Soft Start/Stop - PWM ramping provides smooth motor starting and stopping reducing mechanical stress. Reference software includes complete motor control algorithms for window lift, seat adjustment, and mirror control applications.

Complete motor control solution with PWM, current sensing, and protection. Reference software includes common automotive motor control algorithms.