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LM3421 Datenblatt(PDF) 7 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Teilenummer LM3421
Bauteilbeschribung  N-Channel Controllers for Constant Current LED Drivers
PDF  24 Pages
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Hersteller  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3421 Datenblatt(HTML) 7 Page - National Semiconductor (TI)

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Typical Performance Characteristics
Taken from the standard evaluation board
Boost Efficiency vs. Input Voltage
(6 White LEDs, ~20V at 1A)
30067323
Buck/Boost Efficiency vs. Input Voltage
(6 White LEDs, ~20V at 1A)
30067322
Boost Efficiency vs. Input Voltage
(11 White LEDs, ~46V at 1A)
30067321
Average LED Current vs. PWM DIM Duty Cycle
(V
IN = 12V, 6 White LEDs, ~20V at 1A)
30067318
LED Current vs. Ambient Temperature
(V
IN = 12V, Nominal LED Current Set at 1A)
30067319
LED Current vs. Input Voltage
(Boost, 6 White LEDs, ~20V at 1A)
30067324
7
www.national.com



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