Rainbow-electronics MAX14514 Bedienungsanleitung PDF herunterladen (Seite 5)

MAX14514

Dual Electroluminescent Lamp Driver

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TOTAL INPUT CURRENT

vs. SUPPLY VOLTAGE

MAX14514 toc01

SUPPLY VOLTAGE (V)

TOTAL INPUT CURRENT (mA)

3.4 4.1 4.8

2.7 5.5

TOTAL INPUT CURRENT

vs. TEMPERATURE

MAX14514 toc02

TEMPERATURE (°C)

TOTAL INPUT CURRENT (mA)

35 60-15 10

-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

150

225

300

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

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

0.01

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

150

250

2.7 5.5

DIM_ = 0.4V

DIM_ = 0.7V

DIM = 1V

DIM = 0.5V

Typical Operating Characteristics

= +3.6V, T

= +25°C, unless otherwise noted.)

ELECTRICAL CHARACTERISTICS (continued)

= +2.7V to +5.5V, C

LAMP_TOTAL

= 10nF, C

= 3.3nF, L

= 220µH (I

SAT

= 170mA, R

= 5.5Ω), T

= -40°C to +85°C, unless

otherwise noted. Typical values are at V

= +3.0V, T

= +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

= +25°C. All temperature limits are guaranteed by design.

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