MP2489
MP2489 is Step Down White LED Driver manufactured by Monolithic Power Systems.
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DESCRIPTION
The MP2489 is a high efficiency step-down converter designed in continuous current mode for driving the high brightness Light Emitting Diodes (LED) from wide input voltage 6V- 60V.
The MP2489 employs hysteretic control architecture to regulate a high accuracy LED current, which is measured through an external high-side current sensing resistor. Moreover, this control scheme provides optimized circuit stabilization and very quick response time without the loop pensation. Its low 202mV average feedback voltage reduces power loss and improves the converter efficiency.
The MP2489 implements PWM and analog dimming together with DIM pin.
The...
