LM3445-120VSMEV/NOPB National Semiconductor, LM3445-120VSMEV/NOPB Datasheet
LM3445-120VSMEV/NOPB
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LM3445-120VSMEV/NOPB Summary of contents
Page 1
... Warning: This LM3445 evaluation PCB is a non-isolated design. The ground connection on the evaluation board is NOT referenced to earth ground oscilloscope ground lead is connected to the evaluation board ground test point for analysis, and AC power is applied, the fuse (F1) will fail open. ...
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... Pull above 4.9V (typical) to tri-state DIM. 3 DIM Input/output dual function dim pin. This pin can be driven with an external PWM signal to dim the LEDs. It may also be used as an output signal and connected to the DIM pin of other LM3445 or LED drivers to dim multiple LED circuits simultaneously. 4 COFF OFF time setting pin ...
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... LM3445 Evaluation Board Schematic 3 30099408 www.national.com ...
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... Bill of Materials LM3445 Evaluation Board REF DES U1 IC DRIVER LED W/TRIAC DIM 10MSOP BR1 Bridge Rectifier Vr = 400V 0.8A Ceramic .10uF 250V X7R 1210 C2 Ceramic, 0.01uF, X7R, 25V, 10% C3 Ceramic, 1000pF 500V X7R 1206 C4, C5, C12 C6, C10 CAP 33uF 100V ELECT NHG RADIAL ...
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REF DES Description R20 RES 4.99 OHM 1/8W 1% 0805 R21 RES 12.1 OHM, 0.25W1%, 1206 R22 RES 1.8 OHM 1/3W 5% 1210 R23 RES 499 OHM, 0.25W1%, 1206 RT1 CURRENT LIM INRUSH 60OHM 20% TP10-TP13 Terminal, Turret, TH, Double ...
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... PCB Layout Warning: The LM3445 evaluation boards have no isolation or any type of protection from shock. Caution must be taken when handling evaluation board. Avoid touching evaluation board, and removing any cables while evaluation board is operating. Isolating the evaluation board rather than the oscilloscope is highly recommended ...
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Notes 7 www.national.com ...
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