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LM3642 数据表(PDF) 8 Page - Texas Instruments

部件名 LM3642
功能描述  Synchronous Boost LED Flash Driver
Download  30 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

LM3642 数据表(HTML) 8 Page - Texas Instruments

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2.8 3.0 3.1 3.3 3.4 3.5 3.7 3.8 4.0 4.1 4.2
1.50
1.55
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
2.00
VIN (V)
+25°C
+85°C
-40°C
2.7 2.9 3.1 3.3 3.5 3.6 3.8 4.0 4.2 4.4 4.5
4.00
4.01
4.02
4.03
4.04
4.05
4.06
4.07
4.08
4.09
4.10
VIN (V)
+25°C
+85°C
- 40°C
2.6 2.8 3.0 3.1 3.3 3.4 3.6 3.8 3.9 4.1 4.2
1.75
1.80
1.85
1.90
1.95
2.00
2.05
2.10
2.15
2.20
2.25
VIN (V)
+25°C
+85°C
- 40°C
2.6 2.8 3.0 3.1 3.3 3.4 3.6 3.8 3.9 4.1 4.2
1.68
1.70
1.71
1.72
1.73
1.74
1.76
1.77
1.78
1.79
1.80
VIN (V)
+25°C
+85°C
- 40°C
LM3642
SNVS891H – SEPTEMBER 2012 – REVISED SEPTEMBER 2015
www.ti.com
Typical Characteristics (continued)
Figure 8. Peak Input Current Limit vs. VIN
Figure 9. Peak Input Current Limit vs. VIN
VLED = 3.8V, IIN Setting = 1.9 A
VLED = 3.8 V, IIN Setting = 1.7 A
Figure 10. Average Input Current Limit vs. VIN
Figure 11. Switching Frequency vs. VIN
VLED = 3.8 V, IIN Setting = 1.9 A
VLED = 3.8 V
8
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Product Folder Links: LM3642


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