LM3406_15 datasheet(6/38 Pages) TI1

Part #	LM3406

Description	Constant Current, Buck Regulator for Driving High Power LEDs

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Manufacturer	TI1 [Texas Instruments]

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LM3406, LM3406HV, LM3406HV-Q1

SNVS512E – SEPTEMBER 2008 – REVISED MARCH 2014

www.ti.com

7 TYPICAL PERFORMANCE CHARACTERISTICS

Figure 1. Efficiency vs. Number of InGaN LEDs in Series

Figure 2. Efficiency Vs. Output Current

(1)

Figure 3. VREF vs Temperature

Figure 4. VREF vs VIN, LM3406

Figure 5. VREF vs VIN, LM3406HV/LM3406HV-Q1

Figure 6. Current Limit vs Temperature

(1)

VIN = 24V, IF = 1A, TA = 25°C, and the load consists of three InGaN LEDs in series unless otherwise noted. See the Bill of Materials

table at the end of the datasheet.

6

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