资料介绍
The MAX16822A/MAX16822B step-down constant-cur-
rent high-brightness LED (HB LED) drivers provide a
cost-effective design solution for automotive
interior/exterior lighting, architectural and ambient light-
ing, LED bulbs, and other LED illumination applications.
The MAX16822A/MAX16822B operate from a +6.5V to
+65V input-voltage range. A high-side current-sense
resistor adjusts the output current up to 350mA and a
dedicated pulse-width modulation (PWM) input enables
pulsed LED dimming over a wide range of brightness
levels.
These devices are well suited for applications requiring
a wide input-voltage range. The high-side current sens-
ing and an integrated current-setting circuitry minimize
the number of external components while delivering an
average output current with ±3% accuracy. A hysteretic
control method ensures excellent input supply rejection
and fast response during load transients and PWM dim-
ming. The MAX16822A allows 10% current ripple and
the MAX16822B allows 30% current ripple. Both
devices operate up to a switching frequency of 2MHz,
thus allowing the use of small-sized components.
The MAX16822A/MAX16822B offer an analog dimming
feature that reduces the output current by applying an
external DC voltage below the internal 2V threshold volt-
age from TEMP_I to GND. TEMP_I also sources 25µA to
a negative temperature coefficient (NTC) thermistor con-
nected between TEMP_I and GND, thus providing an
analog thermal-foldback feature that reduces the LED
current when the temperature of the LED string exceeds
a specified temperature point.
An additional feature includes thermal-shutdown pro-
tection that turns off the LX driver when the junction
temperature exceeds +165°C.
The MAX16822A/MAX16822B operate over the -40°C to
+125°C automotive temperature range and are available
in an 8-pin SO package.
rent high-brightness LED (HB LED) drivers provide a
cost-effective design solution for automotive
interior/exterior lighting, architectural and ambient light-
ing, LED bulbs, and other LED illumination applications.
The MAX16822A/MAX16822B operate from a +6.5V to
+65V input-voltage range. A high-side current-sense
resistor adjusts the output current up to 350mA and a
dedicated pulse-width modulation (PWM) input enables
pulsed LED dimming over a wide range of brightness
levels.
These devices are well suited for applications requiring
a wide input-voltage range. The high-side current sens-
ing and an integrated current-setting circuitry minimize
the number of external components while delivering an
average output current with ±3% accuracy. A hysteretic
control method ensures excellent input supply rejection
and fast response during load transients and PWM dim-
ming. The MAX16822A allows 10% current ripple and
the MAX16822B allows 30% current ripple. Both
devices operate up to a switching frequency of 2MHz,
thus allowing the use of small-sized components.
The MAX16822A/MAX16822B offer an analog dimming
feature that reduces the output current by applying an
external DC voltage below the internal 2V threshold volt-
age from TEMP_I to GND. TEMP_I also sources 25µA to
a negative temperature coefficient (NTC) thermistor con-
nected between TEMP_I and GND, thus providing an
analog thermal-foldback feature that reduces the LED
current when the temperature of the LED string exceeds
a specified temperature point.
An additional feature includes thermal-shutdown pro-
tection that turns off the LX driver when the junction
temperature exceeds +165°C.
The MAX16822A/MAX16822B operate over the -40°C to
+125°C automotive temperature range and are available
in an 8-pin SO package.
下载该资料的人也在下载
下载该资料的人还在阅读
更多 >
- MAX764-MAX766资料下载 9次下载
- MAX16065, MAX16066,pdf,中文资料,闪存 42次下载
- MAX532,pdf,Dual, Serial Input, 33次下载
- MAX6369–MAX6374 datasheet pdf 34次下载
- MAX1684,MAX1685 datasheet pdf 22次下载
- MAX1647,MAX1648 datasheet pdf 10次下载
- MAX481,MAX483,MAX485,MAX487–MAX491 datasheet pdf 107次下载
- MAX700,MAX701,MAX702 datasheet 14次下载
- MAX16822A, MAX16822B,MAX16822A 17次下载
- MAX693, MAX694, MAX695 pdf dat 40次下载
- MAX690, MAX691, MAX692 pdf dat 48次下载
- MAX130, MAX131 pdf datasheet ( 32次下载
- MAX4158, MAX4159, MAX4258, MAX 17次下载
- MAX2361, MAX2363, MAX2365 pdf 21次下载
- max232.pdf 163次下载
- max30100和max30102的区别 1014次阅读
- 配合MAX9217/MAX9218/MAX9247/MAX9248/MAX9250评估板工作 1638次阅读
- 推荐MAX3955和MAX3956器件的初始化顺序 417次阅读
- max3485与max485区别详解(解析为什么max3485不能代替max485) 9.6w次阅读
- MAX232引脚图功能应用电路 MAX232中文资料PDF数据手册下载 1.4w次阅读
- MAX14576,MAX14636,MAX14637 USB充电器检测器 1678次阅读
- MAX17595-MAX17597峰值电流模式控制器 1983次阅读
- MAX9240 25位GMSL解串器 1727次阅读
- MAX9039–MAX9043,MAX9050–MAX9053低功耗比较器与精密电压基准源 1712次阅读
- MAX5134-MAX5137内最小的16位DAC 1648次阅读
- MAX4751,MAX4752,MAX4753低电压、单电源、四路SPST模拟开关 1w次阅读
- 如何优化MAX16974-MAX16976的电路布局 1704次阅读
- MAX16070/MAX16071闪存可配置系统监测器 1132次阅读
- MAX16047A/MAX16049A EEPROM可配置系 1438次阅读
- MAX5970应用电路 2331次阅读
下载排行
本周
- 1储能电源市场分析报告
- 2.61 MB | 7次下载 | 免费
- 2labview文档教程资料(一)
- 24.29 MB | 2次下载 | 免费
- 3舵机控制程序案例
- 12.46 MB | 1次下载 | 1 积分
- 4轻触三功能+常按 SOS 功能手筒LED驱动ICSD3302数据手册
- 0.60 MB | 1次下载 | 2 积分
- 54kW 650V工业电机控制开发套件SECO-MDK-4KW-65SPM31-GEVK数据手册
- 43.14 MB | 1次下载 | 免费
- 65V 输入或3.3V 输入,3A 完全集成转换器TPS51313 数据表
- 1.44MB | 1次下载 | 免费
- 75V精密CMOS运算放大器PC6100数据手册
- 0.97 MB | 1次下载 | 免费
- 8具有可配置电压转换和三态输出的8位双电源总线收发器SN74LVC8T245数据表
- 1.67MB | 1次下载 | 免费
本月
- 1STM32国内外发展现状
- 1.15 MB | 18次下载 | 免费
- 2传感芯片选型指南
- 3.60 MB | 12次下载 | 免费
- 3储能电源市场分析
- 7.99 MB | 11次下载 | 免费
- 4ATmega8芯片中文手册
- 2.45 MB | 8次下载 | 1 积分
- 5TDK电容器产品指南
- 11.88 MB | 7次下载 | 1 积分
- 62A多电池高效开关充电器AN_SY6912A中文资料规格书
- 1.43 MB | 7次下载 | 免费
- 7储能电源市场分析报告
- 2.61 MB | 7次下载 | 免费
- 816A 输出电流,高可靠、高效率 同步降压转换器PCD3201产品手册
- 0.47 MB | 6次下载 | 免费
总榜
- 1matlab软件下载入口
- 未知 | 935091次下载 | 免费
- 2开源硬件-PMP21529.1-4 开关降压/升压双向直流/直流转换器 PCB layout 设计
- 1.48MB | 420050次下载 | 免费
- 3Altium DXP2002下载入口
- 未知 | 233068次下载 | 免费
- 4电路仿真软件multisim 10.0免费下载
- 340992 | 191317次下载 | 免费
- 5十天学会AVR单片机与C语言视频教程 下载
- 158M | 183316次下载 | 免费
- 6labview8.5下载
- 未知 | 81567次下载 | 免费
- 7Keil工具MDK-Arm免费下载
- 0.02 MB | 73789次下载 | 免费
- 8NI LabVIEW中实现3D视觉的工具和技术
- 未知 | 70088次下载 | 免费
评论
查看更多