Rainbow-electronics MAX16803 Manual do Utilizador descarregar pdf (Página 4)

MAX16803

High-Voltage, 350mA, High-Brightness LED

Driver with PWM Dimming and 5V Regulator

4 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

= V

= +12V, T

= +25°C, unless otherwise noted.)

DROPOUT VOLTAGE

vs. TEMPERATURE

MAX16803 toc04

TEMPERATURE (°C)

DROPOUT VOLTAGE (V)

1109565 80-10 5 20 35 50-25

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

-40 125

LOAD

= 350mA

SHUTDOWN CURRENT

vs. TEMPERATURE

MAX16803 toc05

TEMPERATURE (°C)

SHUTDOWN CURRENT (µA)

1109580655035205-10-25

-40 125

= 40V

= 20V

= 12V

= 6.5V

+5V REGULATOR OUTPUT

vs. TEMPERATURE

MAX16803 toc06

TEMPERATURE (°C)

5V REGULATOR OUTPUT (V)

1109580655035205-10-25

5.1

5.2

5.3

5.4

5.5

5.0

-40 125

LOAD

= 1mA

NO LOAD

LOAD

= 5mA

CS+

- V

CS-

) vs. I

MAX16803 toc07

(mA)

CS+

- V

CS-

) (V)

764 52 31

0.199

0.200

0.201

0.202

0.203

0.204

0.205

0.206

0.207

0.208

0.209

0.210

0.198

LOAD

= 410mA

+5V REGULATOR OUTPUT vs. V

MAX16803 toc08

(V)

5V REGULATOR OUTPUT (V)

353025201510

5.15

5.20

5.25

5.30

5.10

540

LOAD = 1mA

NO LOAD

LOAD = 5mA

200Hz DIMMED OPERATION

MAX16803 toc09

20µs/div

DIM

2V/div

LOAD

200mA/div

LOAD

= 350mA

= V

= 12V

DIM PULSED AT

200Hz (1%

DUTY CYCLE)

200Hz DIMMED OPERATION (EXPANDED)

MAX16803 toc10

20µs/div

DIM

2V/div

LOAD

200mA/div

LOAD

= 350mA

= V

= 12V

DIM PULSED AT

200Hz (50%

DUTY CYCLE)

200Hz DIMMED OPERATION (EXPANDED)

MAX16803 toc11

20µs/div

DIM

2V/div

LOAD

200mA/div

LOAD

= 350mA

= V

= 12V

DIM PULSED AT

200Hz (50%

DUTY CYCLE)

1 2 3 4 5 6 7 8 9 10 11 12

MAX16803 1
PACKAGE OUTLINE 12

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