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LM3406HV

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75V 1.5A 恒流 LED 降压驱动器

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Input voltage type DC/DC Topology Buck Vin (min) (V) 6 Vin (max) (V) 75 Vout (max) (V) 73 Vout (min) (V) 0.2 Iout (max) (A) 1.5 Iq (typ) (mA) 1.2 Features Adjustable Switch Frequency, Enable/Shutdown, Integrated Switch, Precision Dimming Control, Thermal shutdown Operating temperature range (°C) -40 to 125 Dimming method 2-Wire, PWM Number of channels 1 Rating Catalog
Input voltage type DC/DC Topology Buck Vin (min) (V) 6 Vin (max) (V) 75 Vout (max) (V) 73 Vout (min) (V) 0.2 Iout (max) (A) 1.5 Iq (typ) (mA) 1.2 Features Adjustable Switch Frequency, Enable/Shutdown, Integrated Switch, Precision Dimming Control, Thermal shutdown Operating temperature range (°C) -40 to 125 Dimming method 2-Wire, PWM Number of channels 1 Rating Catalog
HTSSOP (PWP) 14 32 mm² 5 x 6.4
  • LM3406HV-Q1
    • Automotive Grade Device
    • AEC-Q100 Grade 1 Qualified
    • Operating Ambient Temperature: –40°C to 125°C
  • Integrated 2.0A MOSFET
  • VIN Range 6V to 42V (LM3406)
  • VIN Range 6V to 75V (LM3406HV)
  • VIN Range 6V to 75V (LM3406HV-Q1)
  • True Average Output Current Control
  • 1.7A Minimum Output Current Limit Over Temperature
  • Cycle-by-Cycle Current Limit
  • PWM Dimming with Dedicated Logic Input
  • PWM Dimming with Power Input Voltage
  • Simple Control Loop Compensation
  • Low Power Shutdown
  • Supports All-Ceramic Output Capacitors and Capacitor-less Outputs
  • Thermal Shutdown Protection
  • TSSOP-14 Package
  • LM3406HV-Q1
    • Automotive Grade Device
    • AEC-Q100 Grade 1 Qualified
    • Operating Ambient Temperature: –40°C to 125°C
  • Integrated 2.0A MOSFET
  • VIN Range 6V to 42V (LM3406)
  • VIN Range 6V to 75V (LM3406HV)
  • VIN Range 6V to 75V (LM3406HV-Q1)
  • True Average Output Current Control
  • 1.7A Minimum Output Current Limit Over Temperature
  • Cycle-by-Cycle Current Limit
  • PWM Dimming with Dedicated Logic Input
  • PWM Dimming with Power Input Voltage
  • Simple Control Loop Compensation
  • Low Power Shutdown
  • Supports All-Ceramic Output Capacitors and Capacitor-less Outputs
  • Thermal Shutdown Protection
  • TSSOP-14 Package

The LM3406 family are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, they contain a high-side N-channel MOSFET switch with a current limit of 2.0A (typical) for step-down (Buck) regulators. Controlled on-time with true average current and an external current sense resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series-parallel connected LED arrays of varying number and type. LED dimming via pulse width modulation (PWM) is achieved using a dedicated logic pin or by PWM of the power input voltage. The product feature set is rounded out with low-power shutdown and thermal shutdown protection.

The LM3406 family are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, they contain a high-side N-channel MOSFET switch with a current limit of 2.0A (typical) for step-down (Buck) regulators. Controlled on-time with true average current and an external current sense resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series-parallel connected LED arrays of varying number and type. LED dimming via pulse width modulation (PWM) is achieved using a dedicated logic pin or by PWM of the power input voltage. The product feature set is rounded out with low-power shutdown and thermal shutdown protection.

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类型 标题 下载最新的英语版本 日期
* 数据表 LM3406/06HV 1.5A Constant Current Buck Regulator for Driving High Power LEDs 数据表 (Rev. E) 2014年 2月 17日
应用手册 AN-1656 Design Challenges of Switching LED Drivers (Rev. A) 2013年 5月 3日
EVM 用户指南 AN-1993 LM3406HV Evaluation Board with 2 Wire Dimming (Rev. B) 2013年 5月 1日
应用手册 AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A) 2013年 4月 23日
应用手册 Application Note 1656 Design Challenges of Switching LED Drivers (cn) 最新英语版本 (Rev.A) 2007年 10月 18日

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LM3406HVEVAL — LM3406 - 用于驱动高电流 LED 的 1.5A 高电压恒流降压稳压器 EVM

The LM3406HV is a buck regulator controlled current source designed to drive a series string of high power, high brightness LEDs (HBLEDs) at forward currents of up to 1.5A. The converter`s output voltage adjusts as needed to maintain a constant current through the LED array.

The LM3406HV circuit and (...)

用户指南: PDF
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仿真模型

LM3406 PSpice Transient Model

SNVM487.ZIP (186 KB) - PSpice Model
仿真模型

LM3406 TINA-TI LINE_Transient Reference Design

SNVM560.TSC (801 KB) - TINA-TI Reference Design
仿真模型

LM3406 TINA-TI PWM_DIMMING Reference Design

SNVM558.TSC (154 KB) - TINA-TI Reference Design
仿真模型

LM3406 TINA-TI STEADY Reference Design

SNVM557.TSC (130 KB) - TINA-TI Reference Design
仿真模型

LM3406 TINA-TI Transient Spice Model

SNVM559.ZIP (20 KB) - TINA-TI Spice Model
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