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LM3445M/NOPB bảng dữ liệu(PDF) 33 Page - Texas Instruments

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tên linh kiện LM3445M/NOPB
Giải thích chi tiết về linh kiện  TRIAC Dimmable Offline LED Driver
PDF  42 Pages
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nhà sản xuất  TI1 [Texas Instruments]
Trang chủ  http://www.ti.com
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LM3445M/NOPB bảng dữ liệu(HTML) 33 Page - Texas Instruments

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ASNS
FLTR1
DIM
COFF
FLTR2
BLDR
VCC
GATE
ISNS
GND
= VIA
GND
RECTIFIED AC INPUT
LED+
LED-
LM3445
www.ti.com
SNVS570M – JANUARY 2009 – REVISED NOVEMBER 2015
9 Power Supply Recommendations
Use any AC power supply capable of the maximum application requirements for voltage and total power.
10 Layout
10.1 Layout Guidelines
Keep the low power components for ASNS, FLTR1, FLTR2, and COFF close to the LM3445 with short traces.
The ISNS trace should also be as short and direct as possible. Keep the high current switching paths generated
by R3, Q2, L2, and D10 as short as possible to minimize generated switching noise and improve EMI.
10.2 Layout Example
Figure 32. Layout Recommendation
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