CAT32 Datasheet, PDF (4/14 Pages) Catalyst Semiconductor – CMOS White LED Driver

CAT32
TYPICAL CHARACTERISTICS
V_IN=3.6V, T_AMB=25˚C, C_IN=4.7µF, C_OUT=1µF, L=6.8µH, unless otherwise specified.
Quiescent Current vs. Input Voltage
600
500
Quiescent Current vs. Temperature
600
VIN = 7V
500
400
400
VIN = 2V
300
300
200
2
3
4
5
6
7
INPUT VOLTAGE [V]
200
-50 -25 0 25 50 75 100 125
Switching Frequency vs. Input Voltage
2.00
1.60
1.20
0.80
0.40
0.00
2
3
4
5
6
7
INPUT VOLTAGE [V]
Switching Frequency vs. Temperature
2.0
1.6
1.2
0.8
0.4
0.0
-50 -25 0 25 50 75 100 125
LED Current vs. Input Voltage
35
Rset = 750
30
25
Rset = 1.13k
20
Rset = 1.5k
15
Rset = 2.26k
10
5
0
2
3
4
5
6
7
INPUT VOLTAGE [V]
LED Current vs. Temperature
20
15
10
5
0
-50 -25 0 25 50 75 100 125
Doc. No. 5001, Rev. AC
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