LINEAR TECHNOLOGY LT3486 Manual

Update: 29 September, 2023

The LT3486 is a dual step-up DC/DC converter specifically designed to drive up to 16 White LEDs (8 in series per converter) at constant current from a single Li-Ion cell. Series connection of the LEDs provides identical LED currents resulting in uniform brightness. The two independent converters are capable of driving asymmetric LED strings. The dimming of the two LED strings can be controlled independently via the respective CTRL pins. An internal dimming system allows the dimming range to be extended up to 1000:1 by feeding a PWM signal to the respective PWM pins. The LT3486 operating frequency can be set with an external resistor over a 200kHz to 2.5MHz range. A low 200mV feedback voltage (±3% accuracy) minimizes power loss in the current setting resistor for better efficiency. Additional features include output voltage limiting.

Brand: LINEAR

File format: PDF

Size: 841 KB

MD5 Checksum: 82D6280794F3B74D683A969208093FF8

Publication date: 04 May, 2012

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PDF Link: LINEAR TECHNOLOGY LT3486 Manual PDF

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