Micrel MIC3230
the MIC3230 LED Driver MIC3230/1/2 VOUT COUT 4.7µF 100V LED 1 LED X ILED Return Product Option Matrix Input Voltage Synchronization Dither Frequency Range Package MIC3230 6V to 45V Yes No Adj from 100kHz to 1MHz 16-pin EPAD TSSOP 12-pin 3mm × 3mm MLF® MIC3231 6V to 45V No Yes Adj from 100kHz to 1MHz 16-pin EPAD TSSOP 12-pin 3mm × 3mm MLF® MIC3232 6V to 45V No No Fixed Freq.| Part No. | MIC3230 |
|---|---|
| Datasheet | MIC3230 Download |
| Manufacturer |  Micrel |
| Description | Constant Current Boost Controller |
| Buy | Stock & Price |
GENERAL DESCRIPTION
The MIC3230/1/2 are constant current boost switching controllers specifically designed to power one or more strings of high power LEDs. The MIC3230/1/2 have an input voltage range from 6V to 45V and are ideal for a variety of solid state lighting applications. The MIC3230/1/2 utilizes an external power device which offers a cost conscious solution for high power LED applications. The powerful drive circuitry can deliver up to 70W to the LED system. Power consumption has been minimized through the implementation of a 250mV feedback voltage reference providing an accuracy of ±3%. The MIC323x family is dimmable via a pulse width modulated (PWM) input signal and also features an enable pin for low power shutdown. Multiple MIC3230 ICs can be synchronized to a common operating frequency. The clocks of these synchronized devices can be used together in order to help reduce noise and errors in a system. An external resistor sets the adjustable switching frequency of the MIC3230/1.
