STMicroelectronics ALED7709 Automotive LED Drivers

发布时间：2023-04-07 11:39
作者：AMEYA360
来源：网络
阅读量：1896

　　STMicroelectronics ALED7709 Automotive LED Drivers are AEC-Q100 Grade1 qualified and combine a boost/SEPIC controller and four low-side constant-current sinkers. The STMicroelectronics ALED7709 is designed to drive strings of high-brightness LEDs. The switching converter section provides the supply rail for the LED strings, whose value is constantly optimized for maximum efficiency. The boost/SEPIC controller supports the external synchronization and spread spectrum.

STMicroelectronics ALED7709 Automotive LED Drivers

　　FEATURES

　　AEC-Q100 Grade1 qualified

　　Operating temperature range -40°C < TJ < 150°C

　　4.5V to 42V operating input voltage range

　　Up to 60V tolerant for load dump @ 24V battery

　　Supports battery cranking events down to 4V supply

　　Simultaneous or exclusive control by PWMI and I2C interface

　　Switching controller section

　　Low shutdown current ISHDN < 15?A

　　Fixed frequency peak current-mode controller

　　Cycle-by-cycle power switch OCP

　　Adjustable (250kHz to 2.2MHz) switching frequency with optional spread spectrum

　　Synchronized boost and SEPIC topologies support

　　Line switch control for standby power saving and inrush current protection

　　Input overvoltage and output short-circuit protection

　　LED strings control section

　　4 x 40V rated constant current outputs

　　Adjustable up to 200mA per channel

　　±2% typ. output current accuracy

　　Mixed PWM and Analog dimming

　　100Hz to 12.8kHz dimming frequency

　　Dimming ratio 10000:1 at 100Hz

　　LED temperature sensor (NTC) management

　　Selectable channels phase-shifting and adjustable Rise/Fall time for reducing EMI

　　Open channel, LED short-circuit detection

　　Two versions are available ALED7709A and ALED7709B

　　APPLICATIONS

　　Automotive lighting and backlighting

　　Cluster/infotainment display

　　Head-Up Display (HUD)

　　Instrument lighting system

　　Ambient light


（备注：文章来源于网络，信息仅供参考，不代表本网站观点，如有侵权请联系删除！）

上一篇：AMEYA360:MultiTech OneBox™ Kit featuring Reveal™ Sensors

下一篇：AMEYA360:TE Connectivity Sensor Flat Connectors

在线留言询价

相关阅读
STMicroelectronics to Invest EUR 5 Billion in New SiC Wafer Fab
Trade news

STMicroelectronics to Invest EUR 5 Billion in New SiC Wafer Fab

　　STMicroelectronics, following its EUR 7.5 billion wafer fab project with GlobalFoundries in Crolles, France. is set to invest EUR 5 billion in building a new SiC super semiconductor wafer fab in Catania, Sicily, Italy. The fab in Italy will specialize in producing SiC chips, a pivotal technology for electric vehicles with substantial growth potential, according to French media L’Usine Nouvelle on November 26th,　　STMicroelectronics competitively plans to transition to 8-inch wafers starting from 2024. The company will integrate Soitec’s SmartSiC technology to enhance efficiency and reduce carbon emissions. Simultaneously, STMicroelectronics aims to increase capacity, achieve internal manufacturing, and collaborate with Chinese firm Sanan Optoelectronics to raise SiC chip-related revenue from the expected USD 1.2 billion in 2023 to USD 5 billion by 2030.　　On June 7th earlier this year, STMicroelectronics and Sanan Optoelectronics announced a joint venture to establish a new 8-inch SiC device fab in Chongqing, China, with an anticipated total investment of USD 3.2 billion.　　To ensure the successful implementation of this extensive investment plan, Sanan Optoelectronics said to utilize its self-developed SiC substrate process to construct and operate a new 8-inch SiC substrate fab independently.　　TrendForce: over 90% SiC market share by major global players　　According to TrendForce, the SiC industry is currently dominated by 6-inch substrates, holding up to 80% market share, while 8-inch substrates only account for 1%. Transitioning to larger 8-inch substrates is a key strategy for further reducing SiC device costs.　　8-inch SiC substrates offer significant cost advantages than 6-inch substrates. The industry’s major players in China, including SEMISiC, Jingsheng Mechanical & Electrical Co., Ltd. (JSG), Summit Crystal, Synlight Semiconductor, KY Semiconductor, and IV-SemiteC, are advancing the development of 8-inch SiC substrates. This shift from the approximately 45% of total production costs associated with substrates is expected to facilitate the broader adoption of SiC devices and create a positive cycle for major companies.　　Not only Chinese companies but also international semiconductor giants like Infineon Technologies and Onsemi are actively vying for a share of the market. Infineon has already prepared the first batch of 8-inch wafer samples in its fab and plans to convert them into electronic samples soon, with mass production applications scheduled before 2030. International device companies like Onsemi and ROHM have also outlined development plans for 8-inch SiC wafers.　　Currently, major companies hold over 90% of the market share, intensifying competition. A slowdown in progress could provide opportunities for followers. According to TrendForce, the market share of the top 5 SiC power semiconductor players in 2022 was dominated by STMicroelectronics (36.5%), Infineon (17.9%), Wolfspeed (16.3%), Onsemi (11.6%), and ROHM (8.1%), leaving the remaining companies with only 9.6%.
2023-11-30 10:53 阅读量：2225
AMEYA360:STMicroelectronics X-NUCLEO-53L8A1 Sensor Expansion Board
Trade news

AMEYA360:STMicroelectronics X-NUCLEO-53L8A1 Sensor Expansion Board

　　STMicroelectronics X-NUCLEO-53L8A1 Sensor Expansion Board is an expansion board for any STM32 Nucleo board equipped with Arduino R3 connectors. It provides a complete evaluation kit that allows the user to learn, evaluate, and develop applications based on the VL53L8 series Time-of-Flight sensors.　　The STMicroelectronics X-NUCLEO-53L8A1 expansion board is delivered with a cover glass holder. The user can fit three spacers of 0.25, 0.5, and 1mm height below the cover glass to simulate air gaps. Several ST expansion boards can be stacked through the Arduino? connectors, which allow, for example, the development of VL53L8 series ToF applications with Bluetooth? Low Energy or Wi-Fi interfaces.　　FEATURES　　VL53L8CX Time-of-Flight 8x8 multizone sensor with enhanced ranging performances　　Accurate absolute ranging distance, independent of the reflectance of the target　　Up to 400cm ranging　　Histogram-based technology　　Multiobject detection capability　　0.25, 0.5, and 1mm spacers to simulate air gaps　　One cover glass to protect the sensor from dust　　Compatible with STM32 Nucleo development boards　　Equipped with Arduino UNO R3 connectors　　Full system software supplied, including code examples and a graphical user interface　　RoHS, CE, UKCA, and China RoHS compliant　　ADDITIONAL RESOURCES　　Datasheet　　User Manual
2023-04-12 10:58 阅读量：1741
Gridspertise and STMicroelectronics Expand Collaboration
Trade news

Gridspertise and STMicroelectronics Expand Collaboration

　　Gridspertise and STMicroelectronics (ST) have entered a new phase of their long-term collaboration on smart-meter technologies. The announcement was made at DistribuTECH 2023.　　The two companies’ collaboration started in the early 2000’s with one of Gridspertise’s shareholders Enel; today more than 65 million Gridspertise smart meters deployed in Spain, Eastern Europe, and Latin America leverage the power-line communication (PLC) technologies provided by ST. Moreover, ST’s latest PLC system-on-chip has been integrated in Gridspertise smart meters for Italy to enable a near real-time cyber-secure communication channel for in-home devices; the so-called Chain 2 technology. Now, Gridspertise and ST are working together to extend Chain 2 to new metering solutions in the Gridspertise portfolio, making it suitable for the U.S. and other geographies.　　For end customers, Chain 2 technology improves awareness of the energy consumed and self-produced. It enables a multitude of new enhanced services that simplify their energy usage through home automation. Chain 2 technology encourages a more active role for all the players in the energy market, as well as the penetration of distributed renewable sources. For example, the technology allows to recommend to the end customer tailor-made behaviors based on real-time data production from its own generation system, like photovoltaic panels.  It also enables the smart meter to collect real-time data on home appliances’ consumption, that can be used, for example, to modulate the charging power of an EV charger according to the available capacity and other demands for power in the house.　　Furthermore, Gridspertise and ST are collaborating in multiple other areas, too. Beyond working on ANSI C communication standard for the U.S. market, the Companies are cooperating for the adoption of the latest DLMS1-certified standards into Gridspertise smart meters, to further enhance interoperability and interchangeability between devices and systems.　　“Working together with other key industry leaders is fundamental to accelerating grid digitalization and to promoting an active role for end users in the energy transition,” said Gianni Ceneri, Chief Technology Officer, Gridspertise. “We are pleased to strengthen our strategic collaboration with STMicroelectronics leveraging shared best practices for the development of innovative solutions to serve an ever-increasing number of markets and bring benefits to new customers, starting from the U.S. where Gridspertise is enhancing its activities through its North American platform to better support power grid operators and utilities in the region.”　　“As Gridspertise accelerates the growth of its business, ST continues to develop and contribute our unique system know-how, dedicated support, and ready-to-use solutions based on our advanced semiconductor integration capabilities,” added Domenico Arrigo, General Manager of STMicroelectronics’s Industrial and Power Conversion Division in the Analog, MEMS & Sensors Group. “We are maintaining and enhancing our connection as a key technology provider for Gridspertise solutions and services, and with them delivering smart and sustainable grids that are robust, secure, resilient, and reliable.”　　This latest step in the collaboration between Gridspertise and ST perfectly suits Gridspertise’s mission to deliver a new era of sustainable and reliable smart grids, which is extremely timely in the current U.S. context, where new federal policies have unleashed a wave of investment in the energy transition and grid modernization. Together, ST and Gridspertise are unlocking the penetration of new flexible and distributed sustainable energy sources and the active participation of end customers through increasingly digitalized grids.　　Both Companies have branches in the U.S. to directly engage with tech companies, power grid operators, policy makers, and regulators, accelerating the region’s electric future.
2023-02-24 15:21 阅读量：1861
STMicroelectronics 32-Channel Ultrasound Transmitter Suited to Handheld Scanners
Trade news

STMicroelectronics 32-Channel Ultrasound Transmitter Suited to Handheld Scanners

　　STMicroelectronics has expanded its family of advanced ultrasound transmitters by adding a 32-channel variant with high output current for portable applications. The new transmitter, STHVUP32, provides ±800mA aimed at portable systems that demand extra drive capability for a coaxial cable-mounted probe.　　Joining the portfolio alongside the 64-channel STHVUP64, the new 32-channel version contains similar features to increase performance and integration in next-generation affordable, high-performing scanners for medical and industrial applications. These include innovations to maximize image quality, built-in digital beam steering, a space-saving driver architecture, and low power consumption.　　The STHVUP32 has 5-level output capability, in addition to the common 3-level output, which enhances flexibility to optimize the picture quality. Its high output current allows driving the scanner’s piezoelectric transducer at high speed to enable multiple imaging modes. It also helps achieve minimum pulse duration of 5ns for superior image detail. The transmitter supports continuous-wave (CW) and pulsed-wave (PW) operating modes to allow various types of analysis including cavities and liquid flow.　　The digital beam steering enhances directional control by permitting greater precision than conventional analog steering using delay circuits. By integrating the beam-steering logic, the transmitter can be used without a companion chip such as an FPGA. This saves PCB space and routing complexity, as well as bypassing FPGA-design challenges.　　Also new, the transmitter has a self-biased driver architecture that saves connecting decoupling capacitors to the transmitter’s power-supply pins. This helps ensure a smaller circuit footprint, as well as lowering the bill of materials (BOM). In addition, the STHVUP32 is housed in a smaller package than comparable alternative ICs thereby helping designers create next-generation products in even smaller form factors.　　While having extremely low power consumption, which is key for battery-operated systems, the STHVUP32 is richly featured for a superior user experience. There is on-chip memory for storing transmission patterns, and synchronization is possible using a clock signal up to 200MHz to enhance image quality by minimizing jitter. The IC also provides a communication port that supports multiple CMOS signaling standards.　　Built-in protection includes noise blocking, thermal protection, under-voltage protection, and recirculating current protection. There is also a diagnostic register that allows directly reading the causes of interrupts to ease debugging in the event of a malfunction.　　The STHVUP32 is built using ST’s proven BCD8s-SOI technology that supports analog (bipolar), digital (CMOS), and power (DMOS) circuits on the same die. It’s in production now, in a 11.5mm x 10.5mm x 1.35mm 168-ball FC-BGA168 package.
2023-02-22 15:47 阅读量：2772
热门分类
盒子，外壳，机架 电缆，电线 电路保护 连接器，互连器件 开发套件 机电产品 嵌入式解决方案 风扇，热管理 光电元件 其它 无源元件 电源 半导体 传感器，变送器 测试与测量
  • 一周热料
  • 紧缺物料秒杀
型号 品牌 询价
MC33074DR2G onsemi
TL431ACLPR Texas Instruments
BD71847AMWV-E2 ROHM Semiconductor
RB751G-40T2R ROHM Semiconductor
CDZVT2R20B ROHM Semiconductor
型号 品牌 抢购
BU33JA2MNVX-CTL ROHM Semiconductor
ESR03EZPJ151 ROHM Semiconductor
IPZ40N04S5L4R8ATMA1 Infineon Technologies
BP3621 ROHM Semiconductor
TPS63050YFFR Texas Instruments
STM32F429IGT6 STMicroelectronics
热门标签
ROHM
Aavid
Averlogic
开发板
SUSUMU
NXP
PCB
传感器
半导体
原厂授权品牌
更多授权品牌>>
资讯排行榜
  • 周排行榜
  • 月排行榜

相关百科
关于我们
AMEYA360微信服务号 AMEYA360微信服务号
AMEYA360商城(www.ameya360.com)上线于2011年，现 有超过3500家优质供应商，收录600万种产品型号数据，100 多万种元器件库存可供选购，产品覆盖MCU+存储器+电源芯 片+IGBT+MOS管+运放+射频蓝牙+传感器+电阻电容电感+ 连接器等多个领域,平台主营业务涵盖电子元器件现货销售、 BOM配单及提供产品配套资料等，为广大客户提供一站式购 销服务。