Rainbow Electronics MAX14514 - Manual (Page 5)

MAX14514
Dual Electroluminescent Lamp Driver
_______________________________________________________________________________________ 5
TOTAL INPUT CURRENT
vs. SUPPLY VOLTAGE
MAX14514 toc01
SUPPLY VOLTAGE (V)
TOTAL INPUT CURRENT (mA)
3.4 4.1 4.8
5
10
15
20
25
0
2.7 5.5
TOTAL INPUT CURRENT
vs. TEMPERATURE
MAX14514 toc02
TEMPERATURE ( °C)
TOTAL INPUT CURRENT (mA)
35 60 -15 10
5
10
15
20
25
0
-40 85
INPUT CURRENT AND PEAK-TO-PEAK OUTPUT
VOLTAGE vs. BOOST CONVERTER FREQUENCY
MAX14514 toc03
BOOST CONVERTER FREQUENCY (kHz)
TOTAL INPUT CURRENT (mA)
PEAK-TO-PEAK OUTPUT VOLTAGE (V)
80 120 160
20
40
60
80
0
75
150
225
300
0
40 200
PEAK-TO-PEAK OUTPUT
90% DUTY CYCLE
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
MAX14514 toc04
SUPPLY VOLTAGE (V)
SHUTDOWN CURRENT (nA)
3.4 4.1 4.8
0.1
0.2
0.25
0.35
0.05
0.15
0.3
0.4
0
2.7 5.5
DIM1 = DIM2 = EN = 0V
SHUTDOWN CURRENT
vs. TEMPERATURE
MAX14514 toc05
TEMPERATURE ( °C)
SHUTDOWN CURRENT (nA)
35 60 -15 10
0.1
10
0.01
1
100
0.001
-40 85
DIM1 = DIM2 = EN = 0V
PEAK-TO-PEAK OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
MAX14514 toc06
SUPPLY VOLTAGE (V)
PEAK-TO-PEAK OUTPUT VOLTAGE (V)
3.4 4.1 4.8
100
200
50
150
250
0
2.7 5.5
DIM_ = 0.4V
DIM_ = 0.7V
DIM = 1V
DIM = 0.5V
Typical Operating Characteristics
(V
DD
= +3.6V, T
A
= +25°C, unless otherwise noted.)
ELECTRICAL CHARACTERISTICS (continued)
(V DD = +2.7V to +5.5V, C LAMP_TOTAL = 10nF, C CS = 3.3nF, L X = 220µH (I SAT = 170mA, R S = 5.5 Ω), T
A = -40°C to +85°C, unless
otherwise noted. Typical values are at V DD = +3.0V, T A = +25°C.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
CONTROL INPUT (EN)
Input Logic-High Voltage V IH_EN 1.4 V
Input Logic-Low Voltage V IL_EN 0.3 V
THERMAL SHUTDOWN
Thermal Shutdown 158 °C
Thermal Shutdown Hysteresis 8 °C
Note 2: All devices are 100% production tested at T A = +25°C. All temperature limits are guaranteed by design.