The LM3433SQ-14AEV is an evaluation board for LM3433, an adaptive constant on time DC to DC buck constant current controller designed to drive a high brightness LEDs (HB LED) at high forward currents. It is a true current source that provides a constant current with constant ripple current regardless of the LED forward voltage drop. The board canaccept an input voltage ranging from -9V to -14V with respect to GND. The output configuration allows the anodes of multiple LEDs to be tied directly to the ground referenced chassis for maximum heat sink efficiency when a negative input voltage is used.
Operating input voltage range of -9V to -14V with respect to LED Anode
Control inputs referenced to the LED anode
Output current greater than 6A
Greater than 30kHz PWM frequency capable
No output capacitor required
Up to 1MHz switching frequency
Low IQ, 1mA typical
Adaptive programmable ON time allows for constant ripple current
