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74408943470 数据表(PDF) 7 Page - Union Semiconductor, Inc.

部件名 74408943470
功能描述  Hysteretic Buck High Brightness LED Driver with Internal Switch
Download  14 Pages
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制造商  UNIONSEMI [Union Semiconductor, Inc.]
网页  http://www.union-ic.com
标志 UNIONSEMI - Union Semiconductor, Inc.

74408943470 数据表(HTML) 7 Page - Union Semiconductor, Inc.

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________________________________________________________________________
http://www.union-ic.com Rev.04 Apr.2016
7/14
UM1351
-20
-15
-10
-5
0
5
10
15
20
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130
Temperature (°C)
LED Current Change vs. Temperature
(L=
47μH, Rs=0.33 Ω)
Vin=16V, 3 LEDs
Typical Operating Characteristics (Continued)
0
50
100
150
200
250
300
350
0
0.5
1
1.5
2
2.5
3
VSET (V)
LED Current vs. VSET
(Vin=16V, 3 LEDs, 100
μH, Rs=0.33Ω)
0
20
40
60
80
100
120
140
0
5
10
15
20
25
30
VIN (V)
Feedback Voltage vs. Vin
(Vin=16V, 3 LEDs, 100
μH, Rs=0.33Ω)
H
L
250
260
270
280
290
300
310
320
330
340
350
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130
Temperature (°C)
LED Current vs. Temperature
(
L=47μH, Rs=0.33Ω)
LED Current vs. VSET
(VIN=16V, 3 LEDs, 100µH, Rs=0.33Ω)
Feedback Voltage vs. VIN
LED Current vs. Temperature
(L1=47µ H, Rs=0.33
Ω)
LED Current Change vs. Temperature
(L1=47µ H, Rs=0.33
Ω)
H
L
VIN=16V, 3 LEDs
VIN=16V, 3 LEDs


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