Preliminary Datasheet
Off-line Primary Side Regulation Controller for Dimmable LED Driver
AP1681
Typical Performance Characteristics (Continued)
530
4.4
Current Sense Voltage (mV)
CV Feedback Threshold (V)
520
4.3
510
4.2
500
4.1
490
4.0
480
3.9
470
-40
-20
0
20
40
60
o
80
100
120
3.8
-40
-20
0
20
40
60
o
80
100
120
Ambient Temperature ( C)
Ambient Temperature ( C)
Figure 10. Current Sense Voltage vs.
Ambient Temperature
Figure 11. CV Feedback Threshold vs.
Ambient Temperature
4.3
9.0
8.9
4.2
CV Feedback Threshold (V)
4.1
Over Voltage Protection (V)
8.8
8.7
8.6
8.5
8.4
8.3
8.2
8.1
8.0
-40
4.0
3.9
3.8
3.7
3.6
20
22
24
26
28
30
-20
0
20
40
60
o
80
100
120
Supply Voltage (V)
Ambient Temperature ( C)
Figure 12. CV Feedback Threshold vs.
Supply Voltage
Figure 13. Over Voltage Protection vs.
Ambient Temperature
Jul. 2011
Rev. 1. 2
9
BCD Semiconductor Manufacturing Limited
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
