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参数

Input voltage (type) DC/DC Topology Buck Vin (Min) (V) 4.5 Vin (Max) (V) 65 Iout (Max) (A) 1 Iq (Typ) (mA) 3.3 Features Adjustable Switch Frequency, Enable/Shutdown, Integrated Switch, Thermal Shutdown Operating temperature range (C) -40 to 125 Dimming method Analog, PWM open-in-new 查找其它 照明 LED 驱动器

封装|引脚|尺寸

HSOIC (DDA) 8 19 mm² 4.9 x 3.9 WSON (NGQ) 8 9 mm² 3 x 3 open-in-new 查找其它 照明 LED 驱动器

特性

  • Supports LED Power up to 60 W(1): 18x 3-W
    HBLEDs
  • RequiresNo External Current Sensing Resistor
  • ±3% LED Current Accuracy
  • Up to 96% Efficiency
  • High Contrast Ratio (Minimum Dimming Current
    Pulse Width <10 µS)
  • Integrated Low-Side N-Channel MOSFET
  • Adjustable Constant LED Current From 350 mA to
    1000 mA
  • Support Analog Dimming and Thermal Fold-Back
  • Wide Input Voltage Range:
    • 4.5 V to 42 V (LM3414)
    • 4.5 V to 65 V (LM3414HV)
  • Constant Switching Frequency Adjustable from
    250 kHz to 1000 kHz
  • Thermal Shutdown Protection
  • Power Enhanced SOIC-8 or 3 mm × 3 mm
    WSON-8 Package
open-in-new 查找其它 照明 LED 驱动器

描述

The LM3414 and LM3414HV are 1-A 60-W(1) common anode-capable constant current buck LED drivers. They are suitable for driving single string of 3-W HBLED with up to 96% efficiency. They accept input voltages from 4.5 VDC to 65 VDC and deliver up to 1-A average LED current with ±3% accuracy. The integrated low-side N-channel power MOSFET and current sensing element realize simple and low component count circuitry, as no bootstrapping capacitor and external current-sensing resistor are required. An external small-signal resistor to ground provides very fine LED current adjustment, analog dimming, and thermal fold-back functions.

Constant switching frequency operation eases EMI. No external loop compensation network is needed. The proprietary Pulse-Level-Modulation (PLM) control method benefits in high conversion efficiency and true average LED current regulation. Fast response time realizes fine LED current pulse fulfilling the 240 Hz 256-step dimming resolution requirement for general lighting.

The LM3414 and LM3414HV are available in SOIC-8 and 3 mm × 3 mm WSON-8 packages.

open-in-new 查找其它 照明 LED 驱动器
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TPS92513HV 正在供货 65V 1.5A 模拟电流可调节降压 LED 驱动器 This product provides both analog dimming and PWM dimming capabilities and it supports up to 1.5 A output current. Input voltage up to 65 V.

技术文档

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

硬件开发

评估板 下载
document-generic 用户指南
49
说明

The LM3414HV is a 65V floating buck LED driver that designed to drive up to 18 pieces of serial High Brightness LEDs (HBLEDs) with up to 1000 mA LED forward current. With the incorporation of the proprietary Pulse-Level-Modulation (PLM) technology, the LM3414HV requires no external current sensing (...)

评估板 下载
document-generic 用户指南
49
说明

The LM3414HV is a 65V floating buck LED driver that designed to drive up to 18 pieces of serial High Brightness LEDs (HBLEDs) with up to 1000 mA LED forward current. With the incorporation of the proprietary Pulse-Level-Modulation (PLM) technology, the LM3414HV requires no external current sensing (...)

设计工具和仿真

仿真模型 下载
SNVM111.TSC (790 KB) - TINA-TI Reference Design
仿真模型 下载
SNVM112.ZIP (63 KB) - TINA-TI Spice Model
仿真模型 下载
SNVM113.TSC (782 KB) - TINA-TI Reference Design
仿真模型 下载
SNVM114.TSC (773 KB) - TINA-TI Reference Design
仿真工具 下载
PSPICE® for TI design and simulation tool
PSPICE-FOR-TI — 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。

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入门

  1. 申请使用 PSPICE-FOR-TI 仿真器
  2. 下载并安装
  3. 观看有关仿真入门的培训
特性
  • 利用 Cadence PSpice 技术
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    • 自动测量和后处理
    • Monte Carlo 分析
    • 最坏情形分析
    • 热分析

参考设计

参考设计 下载
具有 30W 输出的交流输入、6 通道 LED 串参考设计
PMP4484 The PMP4484 is a power reference design with AC input. It is a isolated LED driver, provides 6 channel LED outputs with PWM dimming.  It implements a high PF flyback controller UCC28810 to output DC 40V, the Constant Current Buck LED Driver LM3414HV downs the voltage to 30V to drive  LED (...)
document-generic 原理图

CAD/CAE 符号

封装 引脚 下载
SO PowerPAD (DDA) 8 了解详情
WSON (NGQ) 8 了解详情

订购与质量

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/FIT 估算
  • 材料成分
  • 认证摘要
  • 持续可靠性监测

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