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LM3409-Q1

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用于高功率 LED 驅動器的 42V 汽車類 PFET 降壓控制器

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TPS92515HV 正在供貨 具有集成 NFET、高側電流感應和分流 PWM 調光功能的 65V 2A LED 驅動器 Higher input voltage range of 5.5 V to 65 V with integrated switch.

產品詳情

Number of channels 1 Topology Buck Controller Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 6 Vin (max) (V) 42 Vout (min) (V) 1.24 Vout (max) (V) 42 Iout (max) (A) 5 Iq (typ) (mA) 2 Switching frequency (max) (kHz) 2000 Features Adjustable Switch Frequency, Enable/Shutdown, Precision Dimming Control, Thermal shutdown
Number of channels 1 Topology Buck Controller Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 6 Vin (max) (V) 42 Vout (min) (V) 1.24 Vout (max) (V) 42 Iout (max) (A) 5 Iq (typ) (mA) 2 Switching frequency (max) (kHz) 2000 Features Adjustable Switch Frequency, Enable/Shutdown, Precision Dimming Control, Thermal shutdown
HVSSOP (DGQ) 10 14.7 mm2 3 x 4.9
  • LM3409-Q1 and LM3409HV-Q1 are Automotive Grade Products: AEC-Q100 Grade 1 Qualified
  • 2-?, 1-A Peak MOSFET Gate Drive
  • VIN Range: 6 V to 42 V (LM3409, LM3409-Q1)
  • VIN Range: 6 V to 75 V (LM3409HV, LM3409HV-Q1)
  • Differential, High-Side Current Sense
  • Cycle-by-Cycle Current Limit
  • No Control Loop Compensation Required
  • 10,000:1 PWM Dimming Range
  • 250:1 Analog Dimming Range
  • Supports All-Ceramic Output Capacitors and Capacitor-less Outputs
  • Low-Power Shutdown and Thermal Shutdown
  • Thermally Enhanced 10-Pin, HVSSOP Package
  • LM3409-Q1 and LM3409HV-Q1 are Automotive Grade Products: AEC-Q100 Grade 1 Qualified
  • 2-?, 1-A Peak MOSFET Gate Drive
  • VIN Range: 6 V to 42 V (LM3409, LM3409-Q1)
  • VIN Range: 6 V to 75 V (LM3409HV, LM3409HV-Q1)
  • Differential, High-Side Current Sense
  • Cycle-by-Cycle Current Limit
  • No Control Loop Compensation Required
  • 10,000:1 PWM Dimming Range
  • 250:1 Analog Dimming Range
  • Supports All-Ceramic Output Capacitors and Capacitor-less Outputs
  • Low-Power Shutdown and Thermal Shutdown
  • Thermally Enhanced 10-Pin, HVSSOP Package

The LM3409, LM3409-Q1, LM3409HV, and LM3409HV-Q1 are P-channel MOSFET (PFET) controllersfor step-down (buck) current regulators. They offer wide input voltage range, high-sidedifferential current sense with low adjustable threshold voltage and fast output enable/disablefunction and a thermally enhanced 10-pin, HVSSOP package. These features combine to make the LM3409 family of devices ideal for use as constant current sources for driving LEDs where forward currentsup to 5 A are easily achievable.

The LM3409 devices use constant off-time (COFT) control to regulate an accurate constantcurrent without the need for external control loop compensation. Analog and PWM dimming are easy toimplement and result in a highly linear dimming range with excellent achievable contrast ratios. Programmable UVLO, low-power shutdown, and thermal shutdown complete the feature set.

For all available packages, see the orderable addendum at the end of the data sheet.

The LM3409, LM3409-Q1, LM3409HV, and LM3409HV-Q1 are P-channel MOSFET (PFET) controllersfor step-down (buck) current regulators. They offer wide input voltage range, high-sidedifferential current sense with low adjustable threshold voltage and fast output enable/disablefunction and a thermally enhanced 10-pin, HVSSOP package. These features combine to make the LM3409 family of devices ideal for use as constant current sources for driving LEDs where forward currentsup to 5 A are easily achievable.

The LM3409 devices use constant off-time (COFT) control to regulate an accurate constantcurrent without the need for external control loop compensation. Analog and PWM dimming are easy toimplement and result in a highly linear dimming range with excellent achievable contrast ratios. Programmable UVLO, low-power shutdown, and thermal shutdown complete the feature set.

For all available packages, see the orderable addendum at the end of the data sheet.
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類型 標題 下載最新的英語版本 日期
* 數據表 LM3409, -Q1, LM3409HV, -Q1 P-FET Buck Controller for High-Power LED Drivers 數據表 (Rev. L) PDF | HTML 2016年 5月 23日
白皮書 LED Drivers for Automotive Exterior Applications (Rev. B) 2018年 3月 27日
應用手冊 AN-1656 Design Challenges of Switching LED Drivers (Rev. A) 2013年 5月 3日
EVM 用戶指南 AN-1953 LM3409HV Evaluation Board (Rev. D) 2013年 5月 1日
用戶指南 AN-1954 LM3409 Demonstration Board (Rev. D) 2013年 5月 1日
應用手冊 AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A) 2013年 4月 23日
應用手冊 Application Note 1954 LM3409 Demonstration Board (cn) 2009年 11月 20日
應用手冊 Application Note 1953 LM3409HV Evaluation Board (cn) 2009年 11月 20日
應用手冊 Dimming Techniques for Switched-Mode LED Drivers 2009年 7月 30日
應用手冊 Application Note 1656 Design Challenges of Switching LED Drivers (cn) 最新英語版本 (Rev.A) 2007年 10月 18日

設計和開發

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評估板

LM3409EVAL — LM3409 演示板

This demonstration board showcases the LM3409 PFET controller for a buck current regulator. It is designed to drive 4 LEDs (VO = 15V) at a maximum average LED current (ILED = 1A) from a DC input voltage (VIN = 24V). The switching frequency (fSW = 525 kHz) is targeted for the nominal operating (...)

用戶指南: PDF
TI.com 上無現貨
仿真模型

LM3409 TINA-TI Transient Reference Design

SNVM421.TSC (580 KB) - TINA-TI Reference Design
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仿真模型

LM3409 TINA-TI Transient Spice Model

SNVM420.ZIP (14 KB) - TINA-TI Spice Model
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仿真模型

LM3409-Q1 PSpice Transient Model

SNVM350.ZIP (69 KB) - PSpice Model
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