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LM3424-Q1

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用于驅(qū)動(dòng) LED、具有熱折返功能的汽車(chē)類(lèi)恒流 N 溝道控制器

產(chǎn)品詳情

Number of channels 1 Topology Boost Controller, Buck-Boost Controller, SEPIC Controller Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 4.5 Vin (max) (V) 75 Vout (min) (V) 3 Vout (max) (V) 72 Iout (max) (A) 5 Iq (typ) (mA) 2 Switching frequency (max) (kHz) 2000 Features Adjustable Switch Frequency, Enable/Shutdown, Power good, Soft Start, Synchronization Pin, Thermal shutdown
Number of channels 1 Topology Boost Controller, Buck-Boost Controller, SEPIC Controller Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 4.5 Vin (max) (V) 75 Vout (min) (V) 3 Vout (max) (V) 72 Iout (max) (A) 5 Iq (typ) (mA) 2 Switching frequency (max) (kHz) 2000 Features Adjustable Switch Frequency, Enable/Shutdown, Power good, Soft Start, Synchronization Pin, Thermal shutdown
HTSSOP (PWP) 20 41.6 mm2 6.5 x 6.4
  • AEC Qualified for automotive applications
    • Device temperature grade 1: ?40°C ≤ TA ≤ 125°C
  • VIN range from 4.5 V to 75 V
  • High-side adjustable current sense
  • 2-?, 1-A peak MOSFET gate driver
  • Input undervoltage and output overvoltage protection
  • PWM and analog dimming
  • Cycle-by-cycle current limit
  • Programmable soft-start and slope compensation
  • Programmable, synchronizable switching frequency
  • Programmable thermal foldback
  • Precision voltage reference
  • Low-power shutdown and thermal shutdown
  • AEC Qualified for automotive applications
    • Device temperature grade 1: ?40°C ≤ TA ≤ 125°C
  • VIN range from 4.5 V to 75 V
  • High-side adjustable current sense
  • 2-?, 1-A peak MOSFET gate driver
  • Input undervoltage and output overvoltage protection
  • PWM and analog dimming
  • Cycle-by-cycle current limit
  • Programmable soft-start and slope compensation
  • Programmable, synchronizable switching frequency
  • Programmable thermal foldback
  • Precision voltage reference
  • Low-power shutdown and thermal shutdown

The LM3424-Q1 is a versatile high voltage N-channel MOSFET controller for LED drivers. It can be easily configured in buck, boost, buck-boost and SEPIC topologies. In addition, the LM3424-Q1 includes a thermal foldback feature for temperature management of the LEDs. This flexibility, along with an input voltage rating of 75 V, makes the LM3424-Q1 ideal for illuminating LEDs in a large family of applications.

Adjustable high-side current sense allows for tight regulation of the LED current with the highest efficiency possible. The LM3424-Q1 uses standard peak current-mode control providing inherent input voltage feed-forward compensation for better noise immunity. It is designed to provide accurate thermal foldback with a programmable foldback breakpoint and slope. In addition, a 2.45V reference is provided.

The LM3424-Q1 includes a high-voltage startup regulator that operates over a wide input range of 4.5 V to 75 V. The internal PWM controller is designed for adjustable switching frequencies of up to 2.0 MHz and external synchronization is possible. The controller is capable of high speed PWM dimming and analog dimming.

The LM3424-Q1 is a versatile high voltage N-channel MOSFET controller for LED drivers. It can be easily configured in buck, boost, buck-boost and SEPIC topologies. In addition, the LM3424-Q1 includes a thermal foldback feature for temperature management of the LEDs. This flexibility, along with an input voltage rating of 75 V, makes the LM3424-Q1 ideal for illuminating LEDs in a large family of applications.

Adjustable high-side current sense allows for tight regulation of the LED current with the highest efficiency possible. The LM3424-Q1 uses standard peak current-mode control providing inherent input voltage feed-forward compensation for better noise immunity. It is designed to provide accurate thermal foldback with a programmable foldback breakpoint and slope. In addition, a 2.45V reference is provided.

The LM3424-Q1 includes a high-voltage startup regulator that operates over a wide input range of 4.5 V to 75 V. The internal PWM controller is designed for adjustable switching frequencies of up to 2.0 MHz and external synchronization is possible. The controller is capable of high speed PWM dimming and analog dimming.
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TPS92692-Q1 正在供貨 具有擴(kuò)頻頻率調(diào)制功能和內(nèi)部 PWM 發(fā)生器的高精度 LED 控制器 This product is a multi-topology low-side NFET LED controller with spread spectrum capability. It supports both analog and PWM dimming (with external P-FET).

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類(lèi)型 標(biāo)題 下載最新的英語(yǔ)版本 日期
* 數(shù)據(jù)表 LM3424-Q1 Constant Current N-channel Controller with Thermal Foldback For Driving LEDs 數(shù)據(jù)表 PDF | HTML 2019年 7月 31日
白皮書(shū) LED Drivers for Automotive Exterior Applications (Rev. B) 2018年 3月 27日
技術(shù)文章 Lighting the road ahead: LEDs in automotive front lighting PDF | HTML 2016年 9月 29日
應(yīng)用手冊(cè) AN-1656 Design Challenges of Switching LED Drivers (Rev. A) 2013年 5月 3日
EVM 用戶(hù)指南 AN-1967 LM3424 Buck-Boost Evaluation Board (Rev. A) 2013年 5月 3日
EVM 用戶(hù)指南 AN-1969 LM3424 Boost Evaluation Board (Rev. A) 2013年 5月 3日
應(yīng)用手冊(cè) AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A) 2013年 4月 23日
用戶(hù)指南 Ambient Light Adaptive LED Driver User Guide 2012年 1月 27日
應(yīng)用手冊(cè) Application Note 1656 Design Challenges of Switching LED Drivers (cn) 最新英語(yǔ)版本 (Rev.A) 2007年 10月 18日

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評(píng)估板

LM3424BKBSTEVAL — LM3424 降壓升壓評(píng)估板

This wide range evaluation board showcases the LM3424 NFET controller used with a buck-boost current regulator. It is designed to drive 4 to 10 LEDs at a maximum average LED current of 1A from a DC input voltage of 10 to 70V. The evaluation board showcases many of the LM3424 features including (...)

用戶(hù)指南: PDF
TI.com 上無(wú)現(xiàn)貨
評(píng)估板

LM3424BSTEVAL — LM3424 升壓評(píng)估板

This evaluation board showcases the LM3424 NFET controller used with a boost current regulator. It is designed to drive 9 to 12 LEDs at a maximum average LED current of 1A from a DC input voltage of 10 to 26V. The evaluation board showcases many of the LM3424 features including thermal foldback, (...)

用戶(hù)指南: PDF
TI.com 上無(wú)現(xiàn)貨
仿真模型

LM3424 PSpice Transient Model

SNVMA72.ZIP (102 KB) - PSpice Model
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CAD/CAE 符號(hào)

Ambient Light Adaptive LED Driver CAD Files

SNVC025.ZIP (123 KB)
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模擬工具

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PSpice? for TI 可提供幫助評(píng)估模擬電路功能的設(shè)計(jì)和仿真環(huán)境。此功能齊全的設(shè)計(jì)和仿真套件使用 Cadence? 的模擬分析引擎。PSpice for TI 可免費(fèi)使用，包括業(yè)內(nèi)超大的模型庫(kù)之一，涵蓋我們的模擬和電源產(chǎn)品系列以及精選的模擬行為模型。

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HTSSOP (PWP) 20 Ultra Librarian

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  • REACH
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  • 引腳鍍層/焊球材料
  • MSL 等級(jí)/回流焊峰值溫度
  • MTBF/時(shí)基故障估算
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