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TPS92518

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具有 SPI 接口、模拟和 PWM 调光功能的 42V 双路降压 LED 控制器

产品详情

Input voltage type DC/DC Topology Buck Vin (min) (V) 6.5 Vin (max) (V) 42 Vout (max) (V) 39 Vout (min) (V) 0 Iout (max) (A) 5 Iq (typ) (mA) 3 Features High Output Accuracy, Precision Dimming Control, Thermal shutdown Operating temperature range (°C) -40 to 125 Dimming method Analog, PWM Number of channels 2 Rating Catalog
Input voltage type DC/DC Topology Buck Vin (min) (V) 6.5 Vin (max) (V) 42 Vout (max) (V) 39 Vout (min) (V) 0 Iout (max) (A) 5 Iq (typ) (mA) 3 Features High Output Accuracy, Precision Dimming Control, Thermal shutdown Operating temperature range (°C) -40 to 125 Dimming method Analog, PWM Number of channels 2 Rating Catalog
HTSSOP (PWP) 24 49.92 mm² 7.8 x 6.4
  • Wide Input Voltage Range 6.5 V to 65 V
  • Two independent Buck LED Controllers
    • High Bandwidth, Quasi-Hysteretic Control
    • Adjustable High-Side Sense
    • Direct PWM Dimming Input
    • Cycle-by-Cycle Current Limit
  • SPI Communications Interface
    • Software configurable Set Points (8-bit)
    • Digital Calibration and Binning
    • Fault Monitoring and Reporting
  • Advanced, High Precision Dimming
    • 10,000:1 PWM Dimming Range
    • 255:1 Analog Dimming Range
    • High Frequency Shunt FET Dimming
  • Wide Input Voltage Range 6.5 V to 65 V
  • Two independent Buck LED Controllers
    • High Bandwidth, Quasi-Hysteretic Control
    • Adjustable High-Side Sense
    • Direct PWM Dimming Input
    • Cycle-by-Cycle Current Limit
  • SPI Communications Interface
    • Software configurable Set Points (8-bit)
    • Digital Calibration and Binning
    • Fault Monitoring and Reporting
  • Advanced, High Precision Dimming
    • 10,000:1 PWM Dimming Range
    • 255:1 Analog Dimming Range
    • High Frequency Shunt FET Dimming

The TPS92518 family of parts are dual channel buck LED current controllers with a SPI communications interface. The serial communication interface provides a singular communication path for multichannel and platform lighting driver module (LDM) applications.

The TPS92518 uses a quasi-hysteretic control method that supports switching frequencies ranging from 1 kHz to 2 MHz. This control method enables superior, high frequency shunt FET dimming and also handles the demanding dynamic loads of adaptive LED matrix based headlamp systems.

Software programmable SPI set points (Precision Peak Current, Controlled Off-Time and Output Voltage Sense) enables designers to develop a single LED driver solution for multiple load configurations that can be quickly reconfigured for future LED driver design requirements.

The TPS92518 device has an input range up to 42 V. The TPS92518HV is a high-voltage option with an input range up to 65 V.

The TPS92518 family of parts are dual channel buck LED current controllers with a SPI communications interface. The serial communication interface provides a singular communication path for multichannel and platform lighting driver module (LDM) applications.

The TPS92518 uses a quasi-hysteretic control method that supports switching frequencies ranging from 1 kHz to 2 MHz. This control method enables superior, high frequency shunt FET dimming and also handles the demanding dynamic loads of adaptive LED matrix based headlamp systems.

Software programmable SPI set points (Precision Peak Current, Controlled Off-Time and Output Voltage Sense) enables designers to develop a single LED driver solution for multiple load configurations that can be quickly reconfigured for future LED driver design requirements.

The TPS92518 device has an input range up to 42 V. The TPS92518HV is a high-voltage option with an input range up to 65 V.

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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 TPS92518 65-V Dual Buck LED Controller with SPI Interface 数据表 2017年 5月 18日
EVM 用户指南 TPS92518EVM Dual Buck Controller Evaluation Module (Rev. D) PDF | HTML 2020年 10月 15日
技术文章 Dimming in switched-mode LED drivers PDF | HTML 2018年 8月 13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)。

评估板

LEDSPIMCUEVM-879 — 与 TPS92518EVM-878 电路板一起使用的 MCU 控制板

LEDSPIMCUEVM-879 是适用于 TPS92518 评估模块 (TPS92518EVM-878) 的 MCU 控制板。此电路板是一个配套电路板,通过 TPS92518 演示套件软件包可实现基于软件的控制,并提供基于计算机的图形用户界面 (GUI)。该板通过将 TPS92518 GUI 的命令转换为 TPS92518 评估模块的控制信号,可评估 TPS92518 的所有特性和功能。通过使用直通连接器将多个 TPS92518 EVM 连接在一起,可以使用一个 LEDSPIMCUEVM 控制多个 TPS92518 EVM。

开始使用

要开始使用此 EVM 进行开发,请执行以下操作:

  • 步骤 (...)
用户指南: PDF | HTML
TI.com 上无现货
评估板

TPS92518EVM-878 — 具有 SPI 接口的双降压 LED 驱动器评估板

TPS92518EVM-878 具有一个基于 TPS92518 双路降压 LED 控制器的双通道高亮度 LED 电流调节器。工作时的输入电压范围为 6.5V 至 65V。此 EVM 经过设置,默认的输出电流为每通道 550mA,支持任意数量的 LED(总电压等于或低于输入电压)。此 EVM 的每个通道均可支持高达 1.6A 的调节电流,可利用 LEDSPIMCUEVM-879 配套 MCU 控制 EVM,通过一个串行接口对电流进行编程。TPS92518 演示套件软件包可提供基于计算机的图形用户界面 (GUI),使用户能够控制 PWM (...)

用户指南: PDF | HTML
仿真模型

TPS92518 PSpice Transient Model (Rev. B)

SLUM573B.ZIP (2834 KB) - PSpice Model
仿真模型

TPS92518 TINA-TI Reference Design (Rev. A)

SLUM578A.TSC (181 KB) - TINA-TI Reference Design
仿真模型

TPS92518 TINA-TI Transient Spice Model (Rev. B)

SLUM576B.ZIP (93 KB) - TINA-TI Spice Model
模拟工具

PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice®

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 (...)
封装 引脚 下载
HTSSOP (PWP) 24 查看选项

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

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支持和培训

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