cat3636 Catalyst Semiconductor, cat3636 Datasheet - Page 4

• Manufacturer Part Number: cat3636
• Description: 6-channel Quad-modetm Fractional Led Driver In Tqfn3x3
• Manufacturer: Catalyst Semiconductor

CAT3636
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 3.6V, I
Doc. No. MD-5020 Rev. D
LED Current Change vs. Input Voltage
Quiescent Current vs. Input Voltage
6.0
5.0
4.0
3.0
2.0
1.0
0.0
-10
OUT
100
10
-2
-4
-6
-8
90
80
70
60
50
40
8
6
4
2
0
Efficiency vs. Input Voltage
5.5
5.5
= 120mA (6 LEDs at 20mA), C
4.5
V
V
V
1x
F
5.0
5.0
F
F
= 3.3V
= 3.3V
= 3.3V
4.0
INPUT VOLTAGE [V]
INPUT VOLTAGE [V]
INPUT VOLTAGE [V]
4.5
4.5
3.5
4.0
4.0
1.33x
3.5
IOUT = 40mA
3.5
3.0
3.0
3.0
1.5x
2.5
2.5
2.5
2x
IN
2.0
= C
2.0
2.0
OUT
= C1 = C2 = 1μF, T
4
LED Current Change vs. Temperature
-10
100
10
-2
-4
-6
-8
Efficiency vs. Li-Ion Voltage
90
80
70
60
50
40
8
6
4
2
0
-40
4.2
AMB
V
F
= 25°C unless otherwise specified.
-20
Traditional 1.5x
Charge Pump
4.0
= 3.3V
TEMPERATURE [°C]
INPUT VOLTAGE [V]
3.8
0
Characteristics subject to change without notice
3.6
20
3.4
40
© Catalyst Semiconductor, Inc.
V
F
= 3.0V
3.2
60
3.0
80