Rainbow-electronics MAX16800 Manual do Utilizador descarregar pdf (Página 3)

MAX16800

High-Voltage, 350mA, Adjustable Linear

High-Brightness LED (HB LED) Driver

_______________________________________________________________________________________ 3

Note 1: Resistors were added from OUT to CS+ to aid with the power dissipation during testing.

Note 2: All devices 100% production tested at T

= +25°C. Limits over the operating temperature range are guaranteed by design.

Note 3: Dropout is measured as follows:

Connect R

= 27Ω from OUT to CS+. Connect R

SENSE

= 0.58Ω from CS+ to CS-. Set V

= +12V (record V

OUT

as V

OUT1

Reduce V

until V

OUT

= 0.97 x V

OUT1

(record as V

IN2

and V

OUT2

). ∆V

= V

IN2

- V

OUT2

Note 4: I

= 0mA.

Note 5: Current regulation varies with V5 load (see the Typical Operating Characteristics).

Note 6: Thermal shutdown does not function if the output of the 5V reference is shorted to ground.

ELECTRICAL CHARACTERISTICS (continued)

= +12V, EN = V

, C

= 0.1µF to GND, I

= 0, CS- = GND, connect R

SENSE

= 0.58Ω between CS+ and CS-. Connect OUT to

CS+ (Note 1). T

= -40°C to +125°C, unless otherwise noted. Typical values are at T

= +25°C.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

THERMAL OVERLOAD

Thermal-Shutdown Temperature

+155

°C

Thermal-Shutdown Hysteresis 23 °C

+5V REGULATOR

Output Voltage Regulation V5 5.0

5.27

5.5 V

Output Voltage Change ∆V5 0 < I

LOAD

< 4mA (Note 5) 15 60 Ω

V5 Short-Circuit Current V5 = 0V (Note 6) 30 mA

Typical Operating Characteristics

= V

= +12V, T

= +25°C, unless otherwise noted.)

OUTPUT CURRENT

vs. TEMPERATURE

MAX16800 toc01

TEMPERATURE (°C)

OUTPUT CURRENT (mA)

1109565 80-10 5 20 35 50-25

100

150

200

250

300

350

400

450

-40 125

LOAD

= 350mA

LOAD

= 35mA

LOAD

= 200mA

LOAD

= 100mA

CS+

- V

CS-

) vs. OUTPUT CURRENT

MAX16800 toc02

OUTPUT CURRENT (mA)

CS+

- V

CS-

) (V)

320290230 26080 110 140 170 20050

0.201

0.202

0.203

0.204

0.205

0.206

0.207

0.208

0.209

0.210

0.200

20 350

= 12V

OUTPUT CURRENT

vs. INPUT VOLTAGE

MAX16800 toc03

INPUT VOLTAGE (V)

OUTPUT CURRENT (mA)

35305 10 15 20 25

100

150

200

250

300

350

400

040

1 2 3 4 5 6 7 8 9

MAX16800 1

Comentários a estes Manuais

Sem comentários

Rainbow-electronics MAX16800 Manual do Utilizador Página 3

Comentários a estes Manuais

Manuais e produtos relacionados com Software Rainbow-electronics MAX16800