LM3445M datasheet(5/39 Pages) TI

номер детали	LM3445M

подробное описание детали	Triac Dimmable Offline LED Driver

PDF	39 Pages

Scroll/Zoom	100%

производитель	TI [Texas Instruments]

домашняя страница	http://www.ti.com

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5 / 39 page

200.0

190.0

180.0

170.0

160.0

150.0

-50

-25

100 125 150

TEMPERATURE (°C)

1.29

1.28

1.27

1.26

1.25

-50

-25

100 125 150

OFF Threshold at C11

TEMPERATURE (°C)

8.0

7.5

7.0

6.5

6.0

-50

-25

100 125 150

UVLO (VCC) Rising

UVLO (VCC) Falling

TEMPERATURE (°C)

300

280

260

240

220

200

-50

-25

100 125 150

TEMPERATURE (°C)

LINE VOLTAGE (VAC)

300k

250k

200k

150k

100k

50k

100

110

120

130

140

C11 = 2.2 nF, R3 = 348 k:

7 LEDs in Series (VO = 24.5V)

LINE VOLTAGE (VAC)

95.0

90.0

85.0

80.0

75.0

100

110

120

130

140

14 Series connected LEDs

10 Series connected LEDs

LM3445

www.ti.com

SNVS570L – JANUARY 2009 – REVISED MAY 2013

TYPICAL PERFORMANCE CHARACTERISTICS

fSW vs Input Line Voltage

Efficiency vs Input Line Voltage

Figure 3.

Figure 4.

BLDR Resistor vs Temperature

VCC UVLO vs Temperature

Figure 5.

Figure 6.

Min On-Time (tON) vs Temperature

Off Threshold (C11) vs Temperature

Figure 7.

Figure 8.

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