TCA62723FMG Datasheet, PDF (4/13 Pages) Marktech Corporate – Three-Channel Constant-Current LED Driver

Method of setting output current (Reference data)
The output current is set by R_EXT connected with the terminal REXT.
TCA62723FMG
120
100
80
60
40
20
0
5
I_OUT (mA) =
1.17 (V)
R_EXT (kΩ)
× 460
I_OUT vs. R_EXT
T_a = 25°C
V_DS = 1.0V
25 45 65 85 105 125 145
I_OUT (mA)
Output Voltage – Output Current (Reference data)
180
160
V_DS vs I_OUT
R_EXT=3.6kΩ
140
120
100
80
60
R_EXT=11kΩ
40
20
R_EXT=110kΩ
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V_DS (V)
Note: These application examples are provided for reference only. Thorough evaluation and testing
should be implemented when designing your application's mass production design.
4
2010-06-10