MIC3223 - Micrel Semiconductor

MIC3223 High Power Boost LED Driver

The MIC3223 is a constant current boost LED driver capable of driving a series string of high power LEDs. The MIC3223 can be used in general lighting, bulb replacement, garden pathway lighting and other solid state illumination applications. The MIC3223 is a peak current mode control PWM boost regulator and the 4.5V and 20V operating input voltage range allo.

Features

an enable pin for a low power shutdown state. The MIC3223 is a very robust LED driver and offers the following protection features: over voltage protection (OVP), thermal shutdown, switch current limiting and under voltage lockout (UVLO). The MIC3223 is offered in a low profile exposed pad 16-pin TSSOP package. Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com. Features
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• 4.5V to 20V supply voltage 200mV feedback voltage with an accuracy of ±5% Step-up output voltage (boost) conversion up to 37V 1MHz switching frequency 100mΩ/3.5A inter.