LM3406HV集成电路（IC）的LED驱动器规格书PDF中文资料

LM3406HV属于集成电路（IC）的LED驱动器。由德州仪器制造生产的LM3406HVLED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。

1 FEATURES

1• 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)

• V IN 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

2 APPLICATIONS

• LED Driver

• Constant Current Source

• Automotive Lighting

• General Illumination

• Industrial Lighting

3 DESCRIPTION

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 LM3406HV-Q1 is AEC-Q100 grade 1 qualified.