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AP2502 Datasheet(PDF) 7 Page - BCD Semiconductor Manufacturing Limited

Part # AP2502
Description  4-CH Linear Constant Current Sink With Matching
PDF  12 Pages
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Manufacturer  BCDSEMI [BCD Semiconductor Manufacturing Limited]
Direct Link  http://www.bcdsemi.com
Logo BCDSEMI - BCD Semiconductor Manufacturing Limited

AP2502 Datasheet(HTML) 7 Page - BCD Semiconductor Manufacturing Limited

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Data Sheet
4-CH Linear Constant Current Sink With Matching
AP2502
Oct. 2010
Rev 1. 1
BCD Semiconductor Manufacturing Limited
7
-40
-20
0
20
40
60
80
100
120
140
20
30
40
50
60
70
80
90
100
110
120
Case Temperature (
oC)
-40
-20
0
20
40
60
80
100
120
140
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
0.2
0.4
0.6
0.8
1.0
V
EN
=3V
V
LED
=300mV
Case Temperature (
oC)
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
16.0
16.5
17.0
17.5
18.0
18.5
19.0
19.5
20.0
20.5
21.0
21.5
22.0
22.5
23.0
23.5
24.0
V
LED
=300mV
T
C
=25
oC
Enable Voltage (V)
0
1020
30
4050
60
7080
90
-10
0
10
20
30
40
50
60
70
80
90
100
110
f=100Hz
f=10kHz
f=100kHz
f=150kHz
T
C
=25
oC
Duty Cycle (%)
99
Typical Performance Characteristics (Continued)
Figure 8. Dropout Voltage vs. Case Temperature
Figure 9. Current Matching vs. Case Temperature
Figure 10. LED Current vs. Enable Voltage
Figure 11. LED Current Efficiency vs. Duty Cycle



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