onsemi SSG8220-PD-D Advanced Front and Rear LED Lighting
Specifications
- Front LED Lighting: Advanced front lighting solution with basic LED function and matrix function
- Rear LED Lighting: Rear lamp solutions with adaptive rear light system
- Pixel Controllers: Allow control of separate LEDs in series for various applications
- LED Drivers: Available for MCU-less solutions
- Low-dropout Regulators (LDOs): For in-vehicle power conversion
- Level and Swivel Control: Components for headlamp leveling and swivel control
Product Usage Instructions
- Front LED Lighting Top Level Topology
- The front LED lighting system includes basic LED functions and matrix functions. It is controlled by LED drivers and other components for power conversion, fan control, and more.
- Rear LED Lighting Top Level Topology
- The rear LED lighting system offers solutions for adaptive rear light systems. It includes evaluation kits, pixel controllers, and low-dropout regulators for efficient performance.
- Pixel Controllers
- Pixel controllers enable the control of separate LEDs in series. They are used for applications like animated signaling, matrix driving, and adaptive high beam technology. Pixel controllers receive data via protocols like CAN to control individual LEDs efficiently.
FAQs
- Q: What is the significance of pixel controllers in LED lighting systems?
- A: Pixel controllers allow for individual control of LEDs, enabling functions like animated signaling, matrix driving, and adaptive high beam technology.
- Q: How many pixels are standard in current LED lighting solutions?
- A: Presently, twelve pixels are standard in LED lighting solutions, with more expensive options offering higher pixel counts for better resolution.
- Q: What benefits do serial LED drivers provide in LED lighting systems?
- A: Serial LED drivers offer efficient thermal management and scalability for driving LEDs with higher currents. They also enable advanced diagnostics for detecting issues like open or short LEDs.
“`
System Solution Guide – Preview
Advanced Front and Rear LED Lighting
Get Latest Version
onsemi.com
Table of Contents
Overview Application
System Implementation Light Sources and Their History Light Systems Classification Adaptive Front-lighting System (AFS) Market Trends
Solution Overview Front LED Lighting Top Level Topology Rear LED Lighting Top Level Topology Front Lamp Architecture LED Platform Evaluation Kit LED Drivers for MCU-less solutions Pixel Controllers Rear Lamp Solutions Adaptive Rear Light System Rear Lamp Evaluation Kits Low-dropout Regulators (LDOs) In-Vehicle Networking Level and Swivel Control
Recommended Products
Complementary Products
Get Latest Version
03
04 05 06 06
07 08 09 11 12 13 15 16 16 17 18 19
20
22
System Solution Guide – Preview
Full Guide Preview
Get Latest Version
System Solution Guide – Preview
Block Diagram
Get Latest Version
Front LED Lighting Top Level Topology
Block diagram below represents automotive advanced front lighting solution recommended by onsemi. Both basic LED function and more advanced and ever more popular matrix function are offered. In addition to main functions which are controlled by LED drivers, onsemi offers other important components for low voltage power conversion, fan control, headlamp leveling and swivel control, CAN and LIN transceivers and more.
Use our Interactive Block Diagrams Tool
System Solution Guide – Preview
Solution Overview
Get Latest Version
Pixel Controllers
Pixel controllers allow controlling the separate LEDs in series. Presently, the main applications include animated signaling (direction indicator), matrix driving and passing beam as a part of the AFS. It is expected that as many as 38% of new cars in 2030 will be equipped with adaptive high beam technology. Nowadays, twelve pixels is a standard with more expensive solutions using more. Generally, more pixels mean better resolution but increased costs for LEDs, controllers, etc.
Boost
Battery Voltage
GND
Current Source LED
LED GND
Current Source LED
LED GND
Pixel controllers employ serial drive topology as can be seen in figure 12. Serial LED drivers are crucial for efficient thermal management. It is preferred topology when driving LEDs with higher currents (>200 mA).
Due to their scalability, many pixel controllers can be cascaded to increase the LED count.
Pixel controllers receive data via CAN or other protocols and accordingly control individual LEDs. Due to their connectivity, they boast advanced diagnostics, can detect open, short of individual LEDs, under and overvoltage and more.
Serial drive topology
Pixel Controller NCV78343
Pixel controller with embedded switches to control individual LEDs in a LED string. If more than 12 segments are required, multiple devices can be combined. If more current or string length is needed, channels can be combined see figure 13.
Key Features:
· 12 switches, 1.4 A per switch, max 60V LED string
· Wide supply input: 4.5 60V
· No crystal oscillator required
· Internal or external dimming
· Over and under voltage detection, over temperature detection
· Short/open circuit detection including open LED bypass
· ASIL B safety design
· UART over CAN or M-LVDS
· SSOP36 package
Different switch arrangements of NCV78343, it is possible to increase current by combining switches, control separate current and other combinations
System Solution Guide – Preview
Advanced Front and Rear LED Lighting
Get Latest Version
Register now to unlock all System Solution Guides and get additional exclusive benefits!
Join the conversation on community forum. Utilize Elite Power Simulator & other developer tools. Watch exclusive webinars and seminars.
Open full System Solution Guide
onsemi, the onsemi logo, and other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba “onsemi” or its affiliates and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of onsemi’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. onsemi reserves the right to make changes at any time to any products or information herein, without notice. The information herein is provided “as-is” and onsemi makes no warranty, representation or guarantee regarding the accuracy of the information, product features, availability, functionality, or suitability of its products for any particular purpose, nor does onsemi assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using onsemi products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by onsemi. “Typical” parameters which may be provided in onsemi data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. onsemi does not convey any license under any of its intellectual property rights nor the rights of others. onsemi products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use onsemi products for any such unintended or unauthorized application, Buyer shall indemnify and hold onsemi and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that onsemi was negligent regarding the design or manufacture of the part. onsemi is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
System Solution Guide – Preview
Documents / Resources
 |
onsemi SSG8220-PD-D Advanced Front and Rear LED Lighting [pdf] User Guide SSG8220-PD-D Advanced Front and Rear LED Lighting, SSG8220-PD-D, Advanced Front and Rear LED Lighting, Front and Rear LED Lighting, Rear LED Lighting, LED Lighting |