AL1678-20B Datasheet, PDF (5/13 Pages) Diodes Incorporated – UNIVERSAL, 500V BUCK LED DRIVER

Performance Characteristics (Note 8)
Start-up Voltage vs. Ambient Temperature
16.0
15.5
15.0
14.5
14.0
13.5
13.0
12.5
12.-040
-20
0
20
40
60
80
Ambient Temperature (^oC)
100 120
Minimal Operating Voltage vs. Ambient Temperature
10.0
9.5
9.0
8.5
8.0
7.5
7.0
6.5
6.0
-40
-20
0
20
40
60
80
Ambient Temperature (^oC)
100 120
AL1678-20B/10B/08B
Start-up Current vs. Ambient Temperature
180
170
160
150
140
130
120
-40
-20
0
20
40
60
80
Ambient Temperature (^oC)
100 120
Operating Current vs. Ambient Temperature
140
130
120
110
100
90
80
7-040
-20
0
20
40
60
80
Ambient Temperature (^oC)
100 120
VCS Reference vs. Ambient Temperature
0.50
0.45
0.40
0.35
0.30
0.25
0.20
-40
-20
0
20
40
60
80
Ambient Temperature (^oC)
100 120
VROVP Reference vs. Ambient Temperature
0.60
0.55
0.50
0.45
0.40
0.35
0.30
-40
-20
0
20
40
60
80
Ambient Temperature (^oC)
100 120
AL1678-20B/10B/08B
Document number: DS37637 Rev. 1 - 2
5 of 13
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April 2015
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