User Guide for onsemi models including: 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
System Solution Guides | onsemi
7 giorni fa — Solution Overview. Front LED Lighting Top Level Topology. 07. Rear LED Lighting Top Level Topology. 08. Front Lamp Architecture.
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DocumentDocumentSystem 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. 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