LM3421-Q1 datasheet(9/72 Pages) TI1

No. de pieza	LM3421-Q1

Descripción Electrónicos	N-Channel Controllers for Constant-Current LED Drivers

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Fabricante Electrónico	TI1 [Texas Instruments]

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LM3421, LM3421-Q1, LM3423, LM3423-Q1

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SNVS574F – JULY 2008 – REVISED JULY 2015

6.6 Typical Characteristics

TA= 25°C and VIN = 14 V unless otherwise specified

Figure 1. Boost Efficiency vs. Input Voltage

Figure 2. Buck-Boost Efficiency vs. Input Voltage

VO = 32V (9 LEDs)

VO = 21V (6 LEDs)

Figure 4. Buck-Boost LED Current vs. Input Voltage

Figure 3. Boost LED Current vs. Input Voltage

VO = 21V (6 LEDs)

VO = 32V (9 LEDs)

Figure 5. Analog Dimming

Figure 6. PWM Dimming

VO = 21 V (6 LEDs); VIN = 24 V

VO = 32 V (9 LEDs); VIN = 24 V

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Product Folder Links: LM3421 LM3421-Q1 LM3423 LM3423-Q1

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