LED驱动器

ADI公司提供各类LED驱动器产品,适合汽车到显示屏及键盘LED背光等各种应用。例如AD8240,设计用于汽车应用,既可用于驱动也可用于监控LED配件。AD8240通过降低与LED驱动相关的复杂度来降低系统成本,包括过流保护,并采用MSOP封装。ADP8860/70电荷泵LED驱动器设计用于驱动最多七个并联白色LED,内置控制器可根据环境条件自动调光。ADP8860/70可独立控制各LED电流,允许单个LED背光驱动器用于满足多个照明要求,例如同时实现LCD背光和键盘背光。这些智能状态机产品通过减少处理器交互来延长电池使用时间,并通过降低软件复杂度来加快上市时间。

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产品选型表


输入参数值,然后点击ADIsimPower查找电源管理解决方案。 Launch of ADIsimPower Voltage Regulator Design Tool
可用系统电压 工作电压轨 负载电流
Vin (最小值) V Vin (最大值) V Vout V Iout A

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让这些电源管理信号链给您灵感,助您了解更多电源元件,以提高电源设计的鲁棒性和效率。 有电源设计方面的问题?
向ADI电源管理专家提问。
基于Excel的独立设计工具。这些工具提供原理图、物料清单和其它仿真数据。

LED Flash Drivers

Part#LED #LED ConfigurationTopologyI2C SupportMax Iout (mA)Brightness ControlUS Price 1000 to 4999
ADP5053 - - - - - - $3.79
ADP5051 - - - - - - $4.59
ADP5134 - - - - - - $2.09
ADP5052 - - - - - - $3.59
ADP5050 - - - - - - $4.39
ADP5041 - - - - - - $1.79
ADP5040 - - - - - - $1.39
ADP5033 - - - - - - $1.90
ADP5043 - - - - - - $1.79
ADP5042 - - - - - - $1.99
ADP2140 - - - - - - $1.20
ADP2116 - - - - - - $2.50
ADP5030 - - - - - - $0.85
ADP5022 - - - - - - $1.80
ADP2114Reference Circuit Available - - - - - - $1.88
ADP5020Reference Circuit Available - - - - - - $1.50
ADP5025 - - - - - - -
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Step-Up (Boost) LED Drivers

Part Number Description Vin (min) (V) Vin (max) (V) VOUT Max (V) Number of Strings Max LEDs Per String Max Current Per String (mA) Boost Type Switching Frequency (MHz) I2C Support Package Price @ 1k ($U.S.)
ADD5201 8-string White LED driver 6 21 45 8 12 30 (240 total) Inductive 1 Yes 28-lead LFCSP 1.4
ADD5203 8-string White LED driver 6 21 45 8 12 30 (240 total) Inductive 1 Yes 28-lead LFCSP 1.4
ADD5205 4-string White LED driver 2.18 18 28 4 6 25 (100 total) Inductive 1 No 12-lead LFCSP 1.15
ADD5207 4-string White LED driver 6 21 36 4 10 25 (100 total) Inductive 1 No 14-lead LFCSP 1.32
ADD5211 4-string White LED driver 3.5 40 80 4 22 200 (800 total) Inductive 0.2 to 1.2 No 24-lead LFCSP 1.4
ADP5501 Serial 6 WLED Driver with ALS , RGB 2.7 5.5 24 1 6 30 Inductive Variable Yes 24-lead LFCSP 1.2
ADP5520 Serial 6 WLED Driver with ALS , RGB, KBRD 2.7 5.5 24 1 6 30 Inductive Variable Yes 24-lead LFCSP 1.66

Step-Down (Buck) LED Drivers

Part Number Description Vin (min) (V) Vin (max) (V) Number of Strings Max LEDs Per String Max Current Per String (mA) Switching Frequency (MHz) Package Price @ 1k ($U.S.)
ADP2384 20V, 4A synchronous step-down DC-to-DC regulator 4.5 20 1 5 4000 0.2 to 1.4 24-lead LFCSP 1.74
ADP2386 20V, 6A synchronous step-down DC-to-DC regulator 4.5 20 1 5 6000 0.2 to 1.4 24-lead LFCSP 2.04
ADP2441 36V, 1A, synchronous, step-down DC-to-DC regulator 4.5 36 1 10 1000 0.2 to 1 12-lead LFCSP 1.78

Current Sink LED Drivers

Part Number Description Vin (min) (V) Vin (max) (V) # of Strings Max LEDs per String Max Current per String (mA) Pin/Package Pricing ($@1k)
ADP8140 High Current LED Driver with Adaptable Power Control 3.3 30 4 28 500 LFCSP-16 1.5

Inductorless (Charge Pump) LED Drivers

Part Number Description Vin (min) (V) Vin (max) (V) Vout (min) (V) Vout (max) (V) # of Strings LEDs per String Max Current per String (mA) Boost Type I2C Support Pin/Package Pricing ($@1k)
ADM8843 PWM Parallel 4 WLED Driver 2.6 5.5 Vin 5.5 4 1 20 Charge Pump No LFCSP-16 0.5
ADM8845 PWM Parallel 6 WLED Driver 2.6 5.5 Vin 5.5 6 1 30 Charge Pump No LFCSP-16 0.71
ADP8860 Parallel 7 WLED Driver with ALS 2.5 5.5 4.3 5.5 7 1 30 Charge Pump Yes LFCSP-20; WLCSP-20 1.36
ADP8861 Parallel 7 WLED Driver 2.5 5.5 4.3 5.5 7 1 30 Charge Pump Yes LFCSP-20; WLCSP-20 1.22
ADP8863 Parallel 7 channel Fun Lighting LED Driver 2.5 5.5 4.3 5.5 7 1 30 Charge Pump Yes LFCSP-20; WLCSP-20 1.22
ADP8866 Charge Pump Driven 9-Channel LED Driver with Automated LED Lighting Effects 2.5 5.5 4.3 5.5 9 1 25 Charge Pump Yes LFCSP-20 1.48
ADP8870 Parallel 7 WLED Driver with ALS & cABC 2.5 5.5 4.3 5.5 7 1 30 Charge Pump Yes LFCSP-20; WLCSP-20 1.48

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