CAT32TDI-T3 Datasheet, PDF (4/13 Pages) ON Semiconductor – CMOS White LED Driver

CAT37
TYPICAL CHARACTERISTICS
V_IN = 3.6V, T_AMB = 25ºC, C_IN = 4.7µF, C_OUT = 1µF, L = 6.8µH, unless otherwise specified.
LED Current vs. Input Voltage
LED Current vs. Temperature
30
16.0
33LELEDDs ^s
202m0AmA
15.5
20
15.0
101m0AmA
10
4 _4LELDEsDs
14.5
0
2
3
4
5
6
INPUT VOLTAGE [V]
14.0
-50
-25
0
25
50
75
100
TEMPERATURE [ºC]
FB Pin Voltage vs. LED Current
110
105
100
33LLEEDDss
95
90
85
80
0
5
10
15
20
LED CURRENT [mA]
Switching Frequency vs. Input Voltage
1.3
1.2
1.1
1.0
0.9
4 LE4DLsEDs
0.8
1
2
3
4
5
INPUT VOLTAGE [V]
Doc. No. MD-5005 Rev. V
6
4
FB Pin Voltage vs. Temperature
100
95
90
85
4⁴L^LE^ED^Ds^sa^at^t 1¹⁵5^mm^AA
V^VI^IN^N =^{= 3}3^..⁶6^VV
80
-50
-25
0
25
50
75
100
TEMPERATURE [ºC]
Switching Frequency vs. Temperature
1.3
1.2
1.1
LOLAODAD=2=02m0AmA
1.0
0.9
LLOOAADD==33LLEEDDssVIN
=V3IN.6V= 3.6V
0.8
-50
-25
0
25
50
75
100
TEMPERATURE [ºC]
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Characteristics subject to change without notice