Rainbow-electronics MAX15001 Bedienungsanleitung PDF herunterladen (Seite 6)

MAX15000/MAX15001

Current-Mode PWM Controllers with

Programmable Switching Frequency

6 _______________________________________________________________________________________

SWITCHING FREQUENCY

vs. TIMING RESISTOR

MAX15000 toc13

TIMING RESISTOR (kΩ)

SWITCHING FREQUENCY (kHz)

10010

100

10001

1000

MAX15000A

PROPAGATION DELAY FROM

CURRENT-LIMIT COMPARATOR

INPUT TO NDRV vs. TEMPERATURE

MAX15000 toc14

TEMPERATURE (°C)

PDCS

(ns)

603510-15

-40 85

UVLO/EN TO NDRV PROPAGATION DELAY

vs. TEMPERATURE

MAX15000 toc15

TEMPERATURE (°C)

UVLO DELAY (ms)

603510-15

-40 85

UVLO/EN RISING

UVLO/EN FALLING

206µs

UVLO/EN TO UFLG PROPAGATION DELAY

vs. TEMPERATURE

MAX15000 toc16

TEMPERATURE (°C)

UVLO DELAY (µs)

603510-15

-40 85

UVLO/EN RISING

UVLO/EN FALLING

REFERENCE VOLTAGE

vs. TEMPERATURE

MAX15000 toc17

TEMPERATURE (°C)

REFERENCE VOLTAGE (V)

603510-15

1.229

1.230

1.231

1.232

1.228

-40 85

= 12V

INPUT CURRENT

vs. IN VOLTAGE

MAX15000 toc18

IN VOLTAGE (V)

INPUT CURRENT (mA)

1817161514131211

1.64

1.68

1.72

1.76

1.80

1.60

10 19

UVLO/EN = 1.4V

NDRV SWITCHING AT 350kHz

INPUT CLAMP VOLTAGE

vs. TEMPERATURE

MAX15000 toc19

TEMPERATURE (°C)

INPUT CLAMP VOLTAGE (V)

6040200-20

25.2

25.4

25.6

25.8

26.0

26.2

26.4

26.6

26.8

27.0

25.0

-40 80

= 2mA

NDRV LOW OUTPUT IMPEDANCE

vs. TEMPERATURE

MAX15000 toc20

TEMPERATURE (°C)

(Ω)

603510-15

1.4

1.6

1.8

2.0

2.2

2.4

1.2

-40 85

= 24V

SINKING 100mA

Typical Operating Characteristics (continued)

UVLO/EN

= +1.4V, V

= +1V, COMP = open, V

= 0V, T

= +25°C, unless otherwise noted.)

1 2 3 4 5 6 7 8 9 10 11 ... 17 18

MAX15000/MAX15001 1

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