NJU6051 Datasheet, PDF (15/20 Pages) New Japan Radio – White LED Driver with Automatic Dimming Control

NJU6051
NOTE2) TEMPERATURE COMPENSATION
The reference voltage (VREF) generator has temperature compensation, which suppresses the characteristic-degradation of
LEDs at high temperatures. The VREF is regulated to 0.6V typical in the temperature range up to 45°C, and gradually decreases
as the ambient temperature rises in the range higher than 45°C.
1.0
0.5
0.0
-50
-25
0
25
50
75
100
TEMPERATURE[℃]
VREF VS TEMPERATURE
FIGURE 4 VREF vs. TEMPERATURE
30
RLED=30Ω
RLED=40Ω
20
10
0
-50
-25
0
25
50
75
100
TEMPERATURE[℃]
ILED VSTEMPERATURE
FIGURE 5 ILED vs. TEMPERATURE
Ver.2003-10-23
- 15 -