主页 电源管理 LED 驱动器 背光 LED 驱动器
主页
电源管理
LED 驱动器
背光 LED 驱动器

LM3530

正在供货

具有可编程环境光感应功能的高效白光 LED 驱动器

立即订购
数据表

LM3530

正在供货
数据表 立即订购

产品详情

Number of channels 1 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Vout (min) (V) 0 Vout (max) (V) 40 Type Inductive Switching frequency (max) (kHz) 500 Duty cycle (max) (%) 94 LED current per channel (mA) 30 Peak efficiency (%) 88 Topology Boost Features I2C control Operating temperature range (°C) -30 to 85 Rating Catalog
Number of channels 1 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Vout (min) (V) 0 Vout (max) (V) 40 Type Inductive Switching frequency (max) (kHz) 500 Duty cycle (max) (%) 94 LED current per channel (mA) 30 Peak efficiency (%) 88 Topology Boost Features I2C control Operating temperature range (°C) -30 to 85 Rating Catalog
DSBGA (YFQ) 12 2.52000000000000018 mm² 1.8 x 1.4000000000000001 DSBGA (YFZ) 12 2.52000000000000018 mm² 1.8 x 1.4000000000000001
  • Drives up to 11 LEDs in series
  • 1000:1 Dimming Ratio
  • 90% Efficient
  • Programmable Dual Ambient Light Sensor Inputs
    with Internal ALS Voltage Setting Resistors
  • I2C Programmable Logarithmic or
    Linear Brightness Control
  • External PWM Input for Simple Brightness
    Adjustment
  • True Shutdown Isolation for LEDs and Ambient
    Light Sensors
  • Internal Soft-Start Limits Inrush Current
  • Wide 2.7-V to 5.5-V Input Voltage Range
  • 40-V and 25-V Overvoltage Protection Options
  • 500-kHz Fixed Frequency Operation
  • 839-mA Peak Current Limit
  • Drives up to 11 LEDs in series
  • 1000:1 Dimming Ratio
  • 90% Efficient
  • Programmable Dual Ambient Light Sensor Inputs
    with Internal ALS Voltage Setting Resistors
  • I2C Programmable Logarithmic or
    Linear Brightness Control
  • External PWM Input for Simple Brightness
    Adjustment
  • True Shutdown Isolation for LEDs and Ambient
    Light Sensors
  • Internal Soft-Start Limits Inrush Current
  • Wide 2.7-V to 5.5-V Input Voltage Range
  • 40-V and 25-V Overvoltage Protection Options
  • 500-kHz Fixed Frequency Operation
  • 839-mA Peak Current Limit

The LM3530 current mode boost converter supplies the power and controls the current in up to 11 series white LEDs. The 839-mA current limit and 2.7-V to 5.5-V input voltage range make the device a versatile backlight power source ideal for operation in portable applications.

The LED current is adjustable from 0 mA to 29.5 mA via an I2C-compatible interface. The 127 different current steps and 8 different maximum LED current levels give over 1000 programmable LED current levels. Additionally, PWM brightness control is possible through an external logic level input.

The device also features two Ambient Light Sensor inputs. These are designed to monitor analog output ambient light sensors and provide programmable adjustment of the LED current with changes in ambient light. Each ambient light sensor input has independently programmable internal voltage setting resistors which can be made high impedance to reduce power during shutdown. The 500-kHz switching frequency allows for high converter efficiency over a wide output voltage range accommodating from 2 to 11 series LEDs. Finally, the support of Content Adjusted Backlighting maximizes battery life while maintaining display image quality.

The LM3530 operates over the −40°C to 85°C temperature range.

The LM3530 current mode boost converter supplies the power and controls the current in up to 11 series white LEDs. The 839-mA current limit and 2.7-V to 5.5-V input voltage range make the device a versatile backlight power source ideal for operation in portable applications.

The LED current is adjustable from 0 mA to 29.5 mA via an I2C-compatible interface. The 127 different current steps and 8 different maximum LED current levels give over 1000 programmable LED current levels. Additionally, PWM brightness control is possible through an external logic level input.

The device also features two Ambient Light Sensor inputs. These are designed to monitor analog output ambient light sensors and provide programmable adjustment of the LED current with changes in ambient light. Each ambient light sensor input has independently programmable internal voltage setting resistors which can be made high impedance to reduce power during shutdown. The 500-kHz switching frequency allows for high converter efficiency over a wide output voltage range accommodating from 2 to 11 series LEDs. Finally, the support of Content Adjusted Backlighting maximizes battery life while maintaining display image quality.

The LM3530 operates over the −40°C to 85°C temperature range.
filter 查找其他 背光 LED 驱动器
下载 观看带字幕的视频 视频

技术文档

star =有关此产品的 TI 精选热门文档
未找到结果。请清除搜索并重试。
查看全部 8
类型 标题 下载最新的英语版本 日期
* 数据表 LM3530 High-Efficiency White-LED Driver with Programmable Ambient Light Sensing Capability and I2C-Compatible Interface 数据表 (Rev. L) PDF | HTML 2014年 12月 23日
白皮书 常见 LED 功能和 LED 驱动器设计注意事项 英语版 2020年 9月 21日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
应用手册 Analog PWM Dimming in White-LED Drivers 2016年 12月 21日
应用手册 Inductor Selection in Boost Converters for LCD Backlight Applications 2016年 10月 24日
应用手册 Schottky Diode Selection in Asynchronous Boost Converters 2016年 9月 6日
用户指南 AN-1991 LM3530 Evaluation Kit (Rev. A) 2013年 4月 30日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

驱动程序或库

LM3530SW-LINUX — LM3530SW-LINUX

The Linux driver supports the LM3530 White LED Driver. The Linux driver supports communication through the I2C bus and interfaces with the LED sub-system.

 

Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:

  • lm3530

 

Linux Source Files

The files (...)

View Options
评估模块 (EVM) 用 GUI

SNVC045 — LM3530 Graphical User Interface

支持的产品和硬件

支持的产品和硬件

产品
背光 LED 驱动器
LM3530 — 具有可编程环境光感应功能的高效白光 LED 驱动器
下载
模拟工具

PSPICE-FOR-TI — PSpice® for TI 设计和仿真工具

PSpice® for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence® 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

借助 PSpice for TI 的设计和仿真环境及其内置的模型库，您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案，然后再进行布局和制造，可缩短产品上市时间并降低开发成本。 

在 PSpice for TI 设计和仿真工具中，您可以搜索 TI (...)
发送申请
封装 引脚 CAD 符号、封装和 3D 模型
DSBGA (YFQ) 12 Ultra Librarian
DSBGA (YFZ) 12 Ultra Librarian
应遵守 TI 评估类商品的标准条款与条件。

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。

支持和培训

视频