LM3406HV-Q1
- 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.
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技术文档
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 | |||
白皮书 | LED Drivers for Automotive Exterior Applications (Rev. B) | 2018年 3月 27日 |
设计和开发
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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 (...)
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封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
HTSSOP (PWP) | 14 | Ultra Librarian |
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