cat4003b ON Semiconductor, cat4003b Datasheet - Page 5

• Manufacturer Part Number: cat4003b
• Description: Constant Current Programmable Led Driver With 32 Dimming Levels
• Manufacturer: ON Semiconductor

Figure 2. EN High Threshold vs. Input Voltage
Figure 4. LED Current Change vs. Input Voltage
(CAT4003B, V
1.4
1.2
1.0
0.8
0.6
0.4
−0.2
−0.4
−0.6
−0.8
−1.0
1.0
0.8
0.6
0.4
0.2
0.0
2.0 2.5
2.5 3.0
IN
80°C
= 4 V, V
INPUT VOLTAGE [V]
3.0
INPUT VOLTAGE [V]
3.5
3.5
F
= 3.3 V, I
4.0
25°C
4.0
4.5
4.5
OUT
−40°C
5.0
= 75 mA (3 LEDs at 25 mA), C
5.0
TYPICAL CHARACTERISTICS
5.5
5.5
http://onsemi.com
5
Figure 5. LED Current Change vs. Temperature
IN
Figure 3. Quiescent Current vs. Input Voltage
−10
10
−2
−4
−6
−8
= 1 μF, T
1.4
1.2
1.0
0.8
0.6
8
6
4
2
0
−40
2.5 3.0
AMB
TEMPERATURE [°C]
0
= 25°C unless otherwise specified.)
INPUT VOLTAGE [V]
3.5
(full load)
40
4.0
4.5
80
5.0
5.5
120