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汽車 LED 驅動器

LM3423-Q1

現行

適用序列 DIM FET 驅動器和故障旗標的車用 N 通道定電流 LED 控制器

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產品規格表

LM3423-Q1

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Topology Boost Controller, Buck-Boost Controller, SEPIC Controller Rating Automotive Operating temperature range (°C) -40 to 150 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, Thermal shutdown
Number of channels 1 Topology Boost Controller, Buck-Boost Controller, SEPIC Controller Rating Automotive Operating temperature range (°C) -40 to 150 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, 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 (LM3421-Q1 and LM3423-Q1)
    • Device Temperature Grade 0: −40°C ≤ TA ≤ 150°C (LM3421-Q0 and LM3423-Q0)
  • VIN Range From 4.5 V to 75 V
  • High-Side Adjustable Current Sense
  • 2-Ω, 1-A Peak MOSFET Gate Driver
  • Input Undervoltage and Output Overvoltage Protection
  • PWM and Analog Dimming
  • Cycle-by-Cycle Current Limit
  • Programmable Switching Frequency
  • Zero Current Shutdown and Thermal Shutdown
  • LED Output Status Flag (LM3423-Q1 and LM3423-Q0 Only)
  • Fault Status Flag and Timer(LM3423-Q1 and LM3423-Q0 Only)
  • AEC Qualified for Automotive Applications
    • Device Temperature Grade 1: −40°C ≤ TA ≤ 125°C (LM3421-Q1 and LM3423-Q1)
    • Device Temperature Grade 0: −40°C ≤ TA ≤ 150°C (LM3421-Q0 and LM3423-Q0)
  • VIN Range From 4.5 V to 75 V
  • High-Side Adjustable Current Sense
  • 2-Ω, 1-A Peak MOSFET Gate Driver
  • Input Undervoltage and Output Overvoltage Protection
  • PWM and Analog Dimming
  • Cycle-by-Cycle Current Limit
  • Programmable Switching Frequency
  • Zero Current Shutdown and Thermal Shutdown
  • LED Output Status Flag (LM3423-Q1 and LM3423-Q0 Only)
  • Fault Status Flag and Timer(LM3423-Q1 and LM3423-Q0 Only)

The LM3421-Q1 and LM3423-Q1 family of devices are versatile high voltage N-channel MOSFET controllers for LED drivers. They can be easily configured in buck, boost, buck-boost and SEPIC topologies. This flexibility, along with an input voltage rating of 75 V, makes the these controllers ideal for illuminating LEDs in a large family of applications.

Adjustable high-side current sense voltage allows for tight regulation of the LED current with the highest efficiency possible. The LM3421-Q1 and LM3423-Q1 devices use predictive off-time (PRO) control, which is a combination of peak current-mode control and a predictive off-timer. This method of control eases the design of loop compensation while providing inherent input voltage feed-forward compensation.

The LM3421-Q1 and LM3423-Q1 devices include a high-voltage start-up 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 MHz, thus enabling compact solutions.

The LM3421-Q1 and LM3423-Q1 family of devices are versatile high voltage N-channel MOSFET controllers for LED drivers. They can be easily configured in buck, boost, buck-boost and SEPIC topologies. This flexibility, along with an input voltage rating of 75 V, makes the these controllers ideal for illuminating LEDs in a large family of applications.

Adjustable high-side current sense voltage allows for tight regulation of the LED current with the highest efficiency possible. The LM3421-Q1 and LM3423-Q1 devices use predictive off-time (PRO) control, which is a combination of peak current-mode control and a predictive off-timer. This method of control eases the design of loop compensation while providing inherent input voltage feed-forward compensation.

The LM3421-Q1 and LM3423-Q1 devices include a high-voltage start-up 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 MHz, thus enabling compact solutions.
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類型 標題 日期
* Data sheet LM342x-Q1 N -Channel Controllers for Constant-Current LED Drivers datasheet PDF | HTML 2019年 7月 30日
White paper LED Drivers for Automotive Exterior Applications (Rev. B) 2018年 3月 27日
Technical article Lighting the road ahead: LEDs in automotive front lighting PDF | HTML 2016年 9月 29日
Application note AN-1656 Design Challenges of Switching LED Drivers (Rev. A) 2013年 5月 3日
EVM User's guide AN-2010 LM3423 Buck-Boost 2 Layer Evaluation Board (Rev. C) 2013年 5月 3日
EVM User's guide AN-2011 LM3423 Boost 2 Layer Evaluation Board (Rev. A) 2013年 5月 3日
EVM User's guide AN-1872 LM3423 Boost Evaluation Board (Rev. B) 2013年 5月 1日
EVM User's guide AN-1907 LM3423 Buck-Boost Configuration Evaluation Board (Rev. A) 2013年 5月 1日
Application note AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A) 2013年 4月 23日
User guide Ambient Light Adaptive LED Driver User Guide 2012年 1月 27日

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開發板

LM3423BBLSCSEV — LM3423 降壓/升壓 2 層低壓側電流感測器評估板

This wide range evaluation board showcases the LM3423 NFET controller used with a buck-boost current regulator. It is designed to drive 4 to 8 LEDs at a maximum average LED current of 700 mA from a DC input voltage of 10 to 70V.

The evaluation board showcases most features of the LM3423 including (...)

使用指南: PDF
TI.com 無法提供
開發板

LM3423BS2LYEV — 升壓 2 層 LED 驅動器評估板

This evaluation board showcases the LM3423 NFET controller used with a boost current regulator. It is designed to drive 9 to 12 LEDs at a maximum average LED current of 700mA from a DC input voltage of 10 to 26V. The evaluation board showcases most features of the LM3423 including PWM dimming, (...)

使用指南: PDF
TI.com 無法提供
模擬型號

LM3423 PSpice Transient Model (Rev. A)

SNVMA70A.ZIP (124 KB) - PSpice Model
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CAD/CAE 符號

Ambient Light Adaptive LED Driver CAD Files

SNVC025.ZIP (123 KB)
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 20 Ultra Librarian
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