Rainbow-electronics MAX15020 Instrukcja Użytkownika Pobierz pdf (Strona 4)

MAX15020

2A, 40V Step-Down DC-DC Converter with

Dynamic Output-Voltage Programming

4 _______________________________________________________________________________________

Typical Operating Characteristics

= 36V, Circuit of Figure 2, T

= +25°C, unless otherwise noted.)

UNDERVOLTAGE LOCKOUT HYSTERESIS

vs. TEMPERATURE

MAX15020 toc01

TEMPERATURE (°C)

UNDERVOLTAGE LOCKOUT HYSTERESIS

1108535 6010-15

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

-40 135

ON/OFF THRESHOLD HYSTERESIS

vs. TEMPERATURE

MAX15020 toc02

TEMPERATURE (°C)

ON/OFF THRESHOLD HYSTERESIS (V)

1108535 6010-15

0.05

0.10

0.15

0.20

-40 135

SHUTDOWN SUPPLY CURRENT

vs. INPUT VOLTAGE

MAX15020 toc03

INPUT VOLTAGE (V)

SUPPLY CURRENT (µA)

302010

040

NO-LOAD SUPPLY CURRENT

vs. INPUT VOLTAGE

MAX15020 toc04

INPUT VOLTAGE (V)

SUPPLY CURRENT (mA)

302010

040

OPERATING FREQUENCY

vs. TEMPERATURE

MAX15020 toc05

TEMPERATURE (°C)

OPERATING FREQUENCY (kHz)

1108535 6010-15

290

292

294

296

298

300

302

304

306

308

288

-40 135

MAXIMUM DUTY CYCLE

vs. INPUT VOLTAGE

MAX15020 toc06

INPUT VOLTAGE (V)

DUTY CYCLE (%)

302010

100

040

LOOP GAIN/PHASE

vs. FREQUENCY

MAX15020 toc07

FREQUENCY (kHz)

GAIN (dB)

PHASE (DEGREES)

100101

-40

-30

-20

-10

-50

-144

-108

-72

-36

108

144

180

-180

0.1 1000

PHASE

= 37V, V

OUT

= 15V,

OUT

= 2.02A

GAIN

MAXIMUM LOAD CURRENT

vs. INPUT VOLTAGE

MAX15020 toc08

INPUT VOLTAGE (V)

LOAD CURRENT (A)

353020 2510 155

2.6

2.7

2.8

2.9

3.0

3.1

3.2

3.3

3.4

3.5

2.5

040

= -45°C

= +25°C

= +85°C

1 2 3 4 5 6 7 8 9 ... 18 19

MAX15020 1

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