LT3595

量产

16 通道降压模式 LED 驱动器

产品模型
2
产品技术资料帮助

ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许,也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。

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产品详情

  • 输入电源范围:4.5V 至 45V
  • 每个通道高达 50mA 的 LED 电流
  • 100mA、45V 内部开关
  • 在 20mA 时相对 LED 电流匹配精度为8%
  • 16 个独立的 LED 通道
  • 5000:1 True Color PWM 调光范围
  • LED 在停机模式中被断接
  • 内部肖特基二极管
  • 低静态电流
  • 2MHz 开关频率
  • RSET 引脚负责设定主控 LED 电流
  • 典型效率:92%
  • 开路 LED 检测和热保护
  • 56 引脚 5mm x 9mm x 0.75mm QFN 封装
LT3595
16 通道降压模式 LED 驱动器
16-Channel LED Driver (Three LEDs per Channel), 20mA Current 5000:1 PWM VIN Dimming at 100Hz Product Package 1
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硬件生态系统

部分模型 产品周期 描述
TimerBlox 1
LTC6992-1 量产 TimerBlox : 电压控制型脉宽调制器 (PWM)
电源监控器 1
LT2940 量产 功率和电流监视器
数字温度传感器 1
LTC2991 推荐新设计使用 8 通道 I2C 电压、电流和温度监视器
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工具及仿真模型

LTspice

LTspice®是一款强大高效的免费仿真软件、原理图采集和波形观测器,为改善模拟电路的仿真提供增强功能和模型。


评估套件

eval board
DC1199A

LT3595EUHH Demo Board | 16-Channel Buck Mode LED Driver, 15V ≤ VIN ≤ 45V, VLED up to 12V @ 30mA (x16)

产品详情

Demonstration circuit 1199A is a 16-Channel Buck Mode LED Driver featuring the LT3595EUHH. The circuit is optimized to drive 16 channels of three series LEDs at 30mA, though the LT3595 is capable of driving up to 10 LEDs at 50mA per channel. Each channel has three series white LEDs and they are stuffed on the PCB. The LT3595 features a wide input voltage range, integrated components, externally set LED current, high pwm dimming range, high efficiency, shutdown, open LED protection, and 2MHz switching frequency.


The 100mA, 45V fully integrated switches help drive up to 10 LEDs per channel in series at 50mA each. Internal catch diodes reduce external component count and circuit size. PWM dimming is as high as 1000:1 at 100Hz over the entire input voltage range.


There are three input power terminals: VIN ranges from 15V up to 45V and is used for powering the LEDs, VCC powers the LT3595 and the pwm gates, and µVIN (6-12V) powers the onboard PIC microprocessor. The PIC allows the board to demonstrate some preprogrammed patterns and PWM dimming. Although the range of the LT3595 VCC pin goes down to 3V, 5V is needed for the PWM signal gates to work properly with the PIC.

DC1199A
LT3595EUHH Demo Board | 16-Channel Buck Mode LED Driver, 15V ≤ VIN ≤ 45V, VLED up to 12V @ 30mA (x16)
DC1199A - Schematic

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