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LM3406HV-Q1

用于驅(qū)動高功率 LED 的 1.5A 汽車類恒流降壓穩(wěn)壓器; ? LM3406HV-Q1 \n? Automotive Grade Device\n? AEC-Q100 Grade 1 Qualified \n? Operating Ambient Temperature: –40°C to 125°C\n \n? Integrated 2.0A MOSFET \n? VIN Range 6V to 42V (LM3406)\n? VIN Range 6V to 75V (LM3406HV)\n? VIN Range 6V to 75V (LM3406HV-Q1)\n? True Average Output Current Control\n? 1.7A Minimum Output Current Limit Over Temperature\n? Cycle-by-Cycle Current Limit\n? PWM Dimming with Dedicated Logic Input\n? PWM Dimming with Power Input Voltage\n? Simple Control Loop Compensation\n? Low Power Shutdown \n? Supports All-Ceramic Output Capacitors and Capacitor-less Outputs\n? Thermal Shutdown Protection\n? TSSOP-14 Package;

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

LM3406HV-Q1

Constant Current, Buck Regulator for Driving High Power LEDs