MAX16814 Integrated, 4-Channel
max16814 integrated, 4-channel, high-brightness led driver with high-voltage dc-dc controller
the max16814 high-efficiency, high-brightness led (hb led) driver provides up to four integrated led current-sink channels. an integrated current-mode switching dc-dc controller drives a dc-dc converter that provides the necessary voltage to multiple strings of hb leds. the max16814 accepts a wide 4.75v to 40v input voltage range and withstands direct automotive load-dump events. the wide input range allows powering hb leds for small to medium-sized lcd displays in automotive and general lighting applications.
an internal current-mode switching dc-dc controller supports the boost, coupled-inductor buck-boost, or sepic topologies and operates in an adjustable frequency range between 200khz and 2mhz. it can also be used for single-inductor buck-boost topology in conjunction with the max15054 and an additional mosfet. the current-mode control with programmable slope compensation provides fast response and simplifies loop compensation. the max16814 also features an adaptive output-voltage control scheme that minimizes the power dissipation in the led current-sink paths.
the max16814 consists of four identical linear current source channels to drive four strings of hb leds. the channel current is adjustable from 20ma to 150ma with an accuracy of ±3% using an external resistor. the external resistor sets all 4-channel currents to the same value. the device allows connecting multiple channels in parallel to achieve higher current per led string. the max16814 also features pulsed dimming control, with very short minimum pulse width as low as 1µs, on all four channels through a logic input (dim).
the max16814 includes an output overvoltage, open-led detection and protection, programmable shorted led detection and protection, and overtemperature protection. the device operates over the -40°c to +125°c automotive temperature range. the max16814 is available in the 6.5mm x 4.4mm, 20-pin tssop and 4mm x 4mm, 20-pin tqfn packages.
4-channel linear led current sinks with internal mosfets full-scale led current adjustable from 20ma to 150ma drives one to four led strings boost, sepic, or coupled-inductor buck-boost current-mode dc-dc controller 200khz to 2mhz programmable switching frequency external switching frequency synchronization adaptive output-voltage optimization to minimize power dissipation 4.75v to 40v operating input voltage range less than 40µa shutdown current 5000:1 pwm dimming at 200hz open-drain fault indicator output open-led and led short detection and protection overtemperature protection thermally enhanced, 20-pin tqfn and tssop packages architectural, industrial, and ambient lighting
automotive displays led backlights
automotive rcl, drl, front position, and fog lights
lcd tv and desktop display led backlights
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the max16814 high-efficiency, high-brightness led (hb led) driver provides up to four integrated led current-sink channels. an integrated current-mode switching dc-dc controller drives a dc-dc converter that provides the necessary voltage to multiple strings of hb leds. the max16814 accepts a wide 4.75v to 40v input voltage range and withstands direct automotive load-dump events. the wide input range allows powering hb leds for small to medium-sized lcd displays in automotive and general lighting applications.
an internal current-mode switching dc-dc controller supports the boost, coupled-inductor buck-boost, or sepic topologies and operates in an adjustable frequency range between 200khz and 2mhz. it can also be used for single-inductor buck-boost topology in conjunction with the max15054 and an additional mosfet. the current-mode control with programmable slope compensation provides fast response and simplifies loop compensation. the max16814 also features an adaptive output-voltage control scheme that minimizes the power dissipation in the led current-sink paths.
the max16814 consists of four identical linear current source channels to drive four strings of hb leds. the channel current is adjustable from 20ma to 150ma with an accuracy of ±3% using an external resistor. the external resistor sets all 4-channel currents to the same value. the device allows connecting multiple channels in parallel to achieve higher current per led string. the max16814 also features pulsed dimming control, with very short minimum pulse width as low as 1µs, on all four channels through a logic input (dim).
the max16814 includes an output overvoltage, open-led detection and protection, programmable shorted led detection and protection, and overtemperature protection. the device operates over the -40°c to +125°c automotive temperature range. the max16814 is available in the 6.5mm x 4.4mm, 20-pin tssop and 4mm x 4mm, 20-pin tqfn packages.
4-channel linear led current sinks with internal mosfets full-scale led current adjustable from 20ma to 150ma drives one to four led strings boost, sepic, or coupled-inductor buck-boost current-mode dc-dc controller 200khz to 2mhz programmable switching frequency external switching frequency synchronization adaptive output-voltage optimization to minimize power dissipation 4.75v to 40v operating input voltage range less than 40µa shutdown current 5000:1 pwm dimming at 200hz open-drain fault indicator output open-led and led short detection and protection overtemperature protection thermally enhanced, 20-pin tqfn and tssop packages architectural, industrial, and ambient lighting
automotive displays led backlights
automotive rcl, drl, front position, and fog lights
lcd tv and desktop display led backlights
非公版最便宜GTX1080 Ti哪家强？七彩虹GTX1080Ti深度评测
智能智造美好生活，萤石智能家居创新向往的生活
iPhone XS/XS Max的信号问题
从IP到EDA，国产Chiplet生态进展如何？
高数值孔径EUV光刻：引领下一代芯片制造的革命性技术
MAX16814 Integrated, 4-Channel
印度已成摄像头设备制造的“新天地”
AI技术在医疗领域面临的五大挑战
三星Note8和iPhone8，会搭载光学指纹识别？一切太早
三大运营商的营销模式不应只打价格战，应跟时代同步创新求变
AMDRX5300XT曝光 系列首次采用GDDR5显存
新能源汽车补贴退坡 高比例的中低端产能无法满足市场需求
5G时代需要构建面向未来的网络安全体系
HDMI接口的EMC设计分享
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大联大诠鼎集团力推凌耀科技接近和环境光传感器