LM3401-MR16DEMO/NOPB National Semiconductor, LM3401-MR16DEMO/NOPB Datasheet
LM3401-MR16DEMO/NOPB
Specifications of LM3401-MR16DEMO/NOPB
Related parts for LM3401-MR16DEMO/NOPB
LM3401-MR16DEMO/NOPB Summary of contents
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... The LM3401 maintains constant current through any number of series-connected LEDs as long as the input voltage is greater than the combined forward voltage of the LED string. The LM3401 demo board includes an input terminal for a dig- ital dimming signal, which is compatible with PWM dimming frequencies kHz. ...
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... Open Circuit/Short Circuit 30025402 If the LED array is disconnected or fails open, the LM3401 will operate at 100% duty cycle. The output voltage (at LED+) and CS node will rise to equal the input voltage; the circuit is rated to 40V and will not suffer damage. However, care should be ...
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Typical Performance Characteristics Unless otherwise specified, the following conditions apply: Vin = 24V 25°C, LED = 2 x Osram Golden Dragon (Vf = 3.4V 350 mA) FIGURE 3. CS, SNS, and LED Current Waveforms FIGURE 4. ...
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... Luxeon V Star 1 Luxeon K2 Emitter The LM3401 can also drive LED currents in excess of 1A. For these applications a larger pad is provided for a higher current PFET. An example BOM for a typical 3.5A application is shown in Table 4. The switching frequency, ripple current, and current limit values will depend on the number and type of www ...
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... PFET D1 30V, 4A, Schottky C1 25V, 10 µF, ceramic C2 50V, 33 µF, electrolytic C3 25V, 220 pF, ceramic 0.0576Ω, 1 4.7 kΩ kΩ,1% PCB Layout Part Number LM3401 MSS1038-522NL Si3493BDV SSB43L C3225X5R1E106K EEEHA1H330XP - WSL2512R0576F - - FIGURE 11. Top Side PCB Layout 5 Size Vendor MSOP-8 NSC 10.2 x 10.4 ...
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FIGURE 12. Bottom Side PCB Layout 6 30025412 ...
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Notes 7 www.national.com ...
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