Application scenarios:
At present, front grille lights have been applied to models of many new car-making forces in China. Due to the huge product matrix, traditional car companies give priority to using front grille lights on the new energy models they launch, and have also initially tried them on some fuel models. On different models, front grille lights are applied with different shapes and functions. Among the new car-making forces, manufacturers that currently use front grille lights include: Xiaopeng, Ideal, HiPhi, WM Motor, Skywell, etc., and the models include Xiaopeng G3i, P5, P7, Ideal One, HiPhiX, WM Motor W6, M7, Skywell ME5, ME7. The characteristic of new force manufacturers is that they do not have many mass-produced models. In order to enhance brand recognition through family-style appearance design, front grille lights will be used in all models of the brand.
Market advantages:
This solution uses the Jiefa AC7840 series automotive MCU as the main control and the Richtek RTQ8306 LED driver. The AC7840X uses the M4F core, the main frequency is 120MHz, the Flash space is up to 1MB, 128KB RAM with ECC, rich peripherals, and meets the ASIL-B functional safety standard; it supports development environments such as MDK, IAR, eclipse, as well as official driver libraries and routines to facilitate user development. Richtek RtQ8306 is a 36-channel 4-zone LED driver with adjustable single-channel current, and has passed the automotive AEC-Q100 certification.
►Scenario application diagram
► Display board photos
►Solution Block Diagram
►Core technology advantages
Advantages of key component Jiefa AC7840:
1. Automotive-grade high performance: Cortex-M4F core, 120MHz main frequency
2. Rich peripheral resources:
1MB Flash, 128KB SRAM
48-channel ADC, 6 8-channel PWM
4 CAN FD, 4 UART, 3 SPI, 1 I2C
Voltage range 2.7v-5.5v
Package: 64-QFP, 100-QFP, 144-QFP
Temperature range: -40C to +125C
3. Functional safety: ASIL-B
Advantages of the key device Richtek RTQ8306:
1. Automotive certification: Passed AEC-Q100 automotive certification
2. Features:
36 LED channels
LED channel drive current 5mA-60mA
Support 1-4 zone scanning
Maximum 24V output LED voltage
One global 8-bit IDAC, 36-channel independent 8-bit DAC
25MHz SPI interface rate
· WQFN 7X7-56L
►Solution Specifications
1. 36 channels, 4 zones scanning, 4 LEDs in each channel
2. With low power mode
3. Temperature range -40 C to 125 C
4. Use SPI for communication
5. 60Hz dynamic synchronization
Previous article:Hongke Disassembly-free Diagnosis | Engine Ignition Timing Fault
Next article:Automotive Grade | ISO26262 Road Vehicle Functional Safety Certification
- Popular Resources
- Popular amplifiers
- Huawei's Strategic Department Director Gai Gang: The cumulative installed base of open source Euler operating system exceeds 10 million sets
- Analysis of the application of several common contact parts in high-voltage connectors of new energy vehicles
- Wiring harness durability test and contact voltage drop test method
- Sn-doped CuO nanostructure-based ethanol gas sensor for real-time drunk driving detection in vehicles
- Design considerations for automotive battery wiring harness
- Do you know all the various motors commonly used in automotive electronics?
- What are the functions of the Internet of Vehicles? What are the uses and benefits of the Internet of Vehicles?
- Power Inverter - A critical safety system for electric vehicles
- Analysis of the information security mechanism of AUTOSAR, the automotive embedded software framework
Professor at Beihang University, dedicated to promoting microcontrollers and embedded systems for over 20 years.
- Innolux's intelligent steer-by-wire solution makes cars smarter and safer
- 8051 MCU - Parity Check
- How to efficiently balance the sensitivity of tactile sensing interfaces
- What should I do if the servo motor shakes? What causes the servo motor to shake quickly?
- 【Brushless Motor】Analysis of three-phase BLDC motor and sharing of two popular development boards
- Midea Industrial Technology's subsidiaries Clou Electronics and Hekang New Energy jointly appeared at the Munich Battery Energy Storage Exhibition and Solar Energy Exhibition
- Guoxin Sichen | Application of ferroelectric memory PB85RS2MC in power battery management, with a capacity of 2M
- Analysis of common faults of frequency converter
- In a head-on competition with Qualcomm, what kind of cockpit products has Intel come up with?
- Dalian Rongke's all-vanadium liquid flow battery energy storage equipment industrialization project has entered the sprint stage before production
- Allegro MicroSystems Introduces Advanced Magnetic and Inductive Position Sensing Solutions at Electronica 2024
- Car key in the left hand, liveness detection radar in the right hand, UWB is imperative for cars!
- After a decade of rapid development, domestic CIS has entered the market
- Aegis Dagger Battery + Thor EM-i Super Hybrid, Geely New Energy has thrown out two "king bombs"
- A brief discussion on functional safety - fault, error, and failure
- In the smart car 2.0 cycle, these core industry chains are facing major opportunities!
- The United States and Japan are developing new batteries. CATL faces challenges? How should China's new energy battery industry respond?
- Murata launches high-precision 6-axis inertial sensor for automobiles
- Ford patents pre-charge alarm to help save costs and respond to emergencies
- New real-time microcontroller system from Texas Instruments enables smarter processing in automotive and industrial applications
- Siemens 230RC opens for 3 seconds and closes for 3 seconds
- [Environmental Expert's Smart Watch] Part 10: Status Light and Mode Switching
- Disassembly of 3.0 expansion dock, PD to HDMI conversion chip Bridgestone PS176HDMQFN48GTR2-B0 schematic diagram reference
- Three issues about LDO load regulation, linear regulation and voltage drop
- How to release the object is part of a locked union
- Lighting capacitor
- [National Technology N32G457 Review] Temperature and atmospheric pressure detection
- 2021 National Electric Competition
- Design of Automatic AC Voltage Stabilizer
- LTC6915 is reverse grounded and forward connected to a bipolar signal. What is the final output?