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MAX14514 Datasheet, PDF (7/14 Pages) Maxim Integrated Products – Dual Electroluminescent Lamp Driver
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Dual Electroluminescent Lamp Driver
Typical Operating Characteristics (continued)
(VDD = +3.6V, TA = +25°C, unless otherwise noted.)
BOOST CONVERTER FREQUENCY vs. CSW
140
120
100
80
60
40
20
0
80
130
180
CSW (pF)
OUTPUT VOLTAGE SLOPE vs. RSLEW
45
40
35
30
25
20
15
10
5
300 400 500 600 700 800 900 1000
RSLEW (kΩ)
SLOW TURN-ON/TURN-OFF TIME vs. CCAP
1
0.9
VDD = 5.5V
DIM1 = 0V to VDD
0.8 DIM2 = GND
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
2
4
6
8
10
CCAP (nF)
BOOST CONVERTER FREQUENCY
vs. SUPPLY VOLTAGE
130
128
126
124
122
120
118
116
114
112
110
2.7
3.4
4.1
4.8
5.5
SUPPLY VOLTAGE (V)
OUTPUT VOLTAGE SLOPE
vs. SUPPLY VOLTAGE
36
35
34
33
32
31
30
29
28
27
26
2.7
3.4
4.1
4.8
5.5
SUPPLY VOLTAGE (V)
NORMALIZED BRIGHTNESS LEVEL
vs. SUPPLY VOLTAGE
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
2.7
3.4
4.1
4.8
5.5
SUPPLY VOLTAGE
BOOST CONVERTER FREQUENCY
vs. TEMPERATURE
130
128
126
124
122
120
118
116
114
112
110
-40
-15
10
35
60
85
TEMPERATURE (°C)
OUTPUT VOLTAGE SLOPE
vs. TEMPERATURE
36
35
34
33
32
31
30
29
28
27
26
-40 -15
10
35
60
85
TEMPERATURE (°C)
TYPICAL V_, VCOM, AND
V_ - VCOM WAVEFORMS
MAX14514 toc24
V_ - VCOM
50V/div
1ms/div
V_, VCOM
25V/div
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