参数资料
型号: LM3445TRIACEVAL
厂商: National Semiconductor
文件页数: 5/40页
文件大小: 0K
描述: BOARD EVAL LM3445MM
标准包装: 1
系列: PowerWise®
电流 - 输出 / 通道: 770mA
输出及类型: 1,非隔离
特点: 可调光
输入电压: 8 ~ 12V
已供物品:
已用 IC / 零件: LM3445MM
相关产品: LM3445MMX-ND - IC LED DRIVER TRIAC DIMM 10-MSOP
LM3445MMDKR-ND - IC LED DRIVER TRIAC DIMM 10-MSOP
LM3445MMCT-ND - IC LED DRIVER TRIAC DIMM 10-MSOP
LM3445MMTR-ND - IC LED DRIVER TRIAC DIMM 10-MSOP

SNVS570L – JANUARY 2009 – REVISED MAY 2013
TYPICAL PERFORMANCE CHARACTERISTICS
300k
f SW vs Input Line Voltage
95.0
Efficiency vs Input Line Voltage
14 Series connected LEDs
250k
200k
150k
7 LEDs in Series (V O = 24.5V)
90.0
85.0
100k
50k
0
C11 = 2.2 nF, R3 = 348 k :
80.0
75.0
10 Series connected LEDs
80
90
100
110
120
130
140
80
90
100
110
120
130
140
LINE VOLTAGE (V AC )
Figure 3.
LINE VOLTAGE (V AC )
Figure 4.
300
BLDR Resistor vs Temperature
8.0
V CC UVLO vs Temperature
UVLO (V CC ) Rising
280
7.5
260
7.0
240
220
6.5
UVLO (V CC ) Falling
200
-50 -25
0
25
50
75
100 125 150
6.0
-50 -25
0
25
50
75
100 125 150
200.0
TEMPERATURE (°C)
Figure 5.
Min On-Time (t ON ) vs Temperature
1.29
TEMPERATURE (°C)
Figure 6.
Off Threshold (C11) vs Temperature
190.0
1.28
180.0
1.27
170.0
160.0
1.26
OFF Threshold at C11
150.0
1.25
-50 -25
0
25
50
75
100 125 150
-50 -25
0
25
50
75
100 125 150
TEMPERATURE (°C)
Figure 7.
TEMPERATURE (°C)
Figure 8.
Copyright ? 2009–2013, Texas Instruments Incorporated
Product Folder Links: LM3445
5
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