IK2802

8

2011, February Ver. 03

Constant Current

In LED lighting applications, IK2802 provides nearly no variation in current from channel to channel and from IC

to IC. This can be achieved by:

1) The maximum current variation between channels is less than ±3%, and that between ICs is less than ±6%.

2) In addition, the current characteristic of output stage is flat and users can refer to the figure as shown below.

s

LED to be performed on the same brightness as user’s specification.

Figure 5

Iout versus Vds

0

40

80

120

160

200

240

280

320

360

400

0

1

2

3

4

Vds (V)

16,1k

4,9k

2,9k

2,1k

1,6k