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LM3406HV-Q1

現行

適用驅動高功率 LED 的 1.5-A 車用定電流降壓穩壓器

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產品規格表

LM3406HV-Q1

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Topology Buck Rating Automotive Operating temperature range (°C) -40 to 150 Vin (min) (V) 6 Vin (max) (V) 75 Vout (min) (V) 0.2 Vout (max) (V) 73 Iout (max) (A) 1.5 Iq (typ) (mA) 1.2 Switching frequency (max) (kHz) 1000 Features Adjustable Switch Frequency, Enable/Shutdown, Integrated Switch, Power good, Soft Start, Thermal shutdown
Number of channels 1 Topology Buck Rating Automotive Operating temperature range (°C) -40 to 150 Vin (min) (V) 6 Vin (max) (V) 75 Vout (min) (V) 0.2 Vout (max) (V) 73 Iout (max) (A) 1.5 Iq (typ) (mA) 1.2 Switching frequency (max) (kHz) 1000 Features Adjustable Switch Frequency, Enable/Shutdown, Integrated Switch, Power good, Soft Start, Thermal shutdown
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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類型 標題 日期
* Data sheet LM3406/06HV 1.5A Constant Current Buck Regulator for Driving High Power LEDs datasheet (Rev. E) 2014年 2月 17日
White paper LED Drivers for Automotive Exterior Applications (Rev. B) 2018年 3月 27日

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LM3406HVEVAL — LM3406 - 用於驅動高電流 LED 的 1.5A 高電壓定電流降壓穩壓器 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 (...)

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