MAX5019ESA datasheet(5/14 Pages) MAXIM

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Current-Mode PWM Controllers with Integrated

Startup Circuit

Typical Operating Characteristics (continued)

(V+ = 48V, VDD = 13V, CS = GND, NRDV is open circuit, TA = +25°C, unless otherwise noted.)

267.0

268.0

267.5

269.0

268.5

269.5

270.0

270.5

271.0

010

2025303540

NDRV FREQUENCY vs. VDD

VDD (V)

FB = GND

47.0

47.2

47.1

47.4

47.3

47.6

47.5

47.7

47.9

47.8

48.0

010

2025303540

MAX5020

MAXIMUM DUTY CYCLE vs. VDD

VDD (V)

VFB = 4V, CS = GND

DEVICE POWERED

FROM V+

DEVICE POWERED

FROM VDD

9.5

9.6

9.8

9.7

10.0

10.1

9.9

10.2

010

2025303540

VCC vs. VDD

VDD (V)

DEVICE POWERED FROM VDD

DEVICE POWERED

FROM V+

FB = GND

1.51

1.53

1.52

1.56

1.55

1.54

1.59

1.58

1.57

1.60

040

100

V+ SUPPLY CURRENT vs.

V+ VOLTAGE

V+ VOLTAGE (V)

VFB = VDD = GND

040

10 20

50 60 70 80 90

110

V+ SUPPLY CURRENT vs. V+ VOLTAGE

(AFTER STARTUP)

V+ VOLTAGE (V)

100

VDD = 13V, FB = GND

9.0

9.4

9.2

9.8

9.6

10.2

10.0

10.4

VCC VOLTAGE vs. VCC CURRENT

VCC CURRENT (mA)

5.0

10.0

15.0

20.0

V+ = 110V, VFB = 4V

VDD = 36V

VDD = 13V

9.0

9.3

9.2

9.1

9.4

9.5

9.6

9.7

9.8

9.9

10.0

5.0

10.0

15.0

20.0

VCC VOLTAGE vs. VCC CURRENT

VCC CURRENT (mA)

VDD = GND, VFB = 4V

V+ = 110V

V+ = 90V

V+ = 72V

V+ = 48V

V+ = 36V

V+ = 24V

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