The LM3404HVMR is a constant current Buck Regulator for high power LED driver, designed to deliver constant currents to high power LEDs. This regulator contains a high-side N-channel MOSFET switch with a current limit of 1.5A (typical) for step-down (buck) regulators. Hysteretic controlled on-time and an external 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. Some features of this product includes LED dimming using pulse width modulation (PWM), broken or open LED protection, low-power shutdown and thermal shutdown.
● Cycle-by-cycle current limit
● No control loop compensation required
● Separate PWM dimming and low power shutdown
● Supports all-ceramic output capacitors and capacitor-less outputs
● Thermal shutdown protection
●This device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
