beautypg.com

Typical operating characteristics (continued) – Rainbow Electronics MAX5043 User Manual

Page 8

background image

MAX5042/MAX5043

Two-Switch Power ICs with Integrated
Power MOSFETs and Hot-Swap Controller

8

_______________________________________________________________________________________

Typical Operating Characteristics (continued)

(V

POSINPWM

= 20V, T

A

= +25°C, unless otherwise noted.)

MAXIMUM DUTY CYCLE

vs. TEMPERATURE

MAX5042 toc09

TEMPERATURE (°C)

MAXIMUM DUTY CYCLE (%)

100

75

50

25

0

-25

47

48

49

50

46

-50

125

MEASURED AT XFRMRL

REG15 VOLTAGE

vs. REG15 LOAD CURRENT

MAX5042 toc10

REG15 LOAD CURRENT (mA)

V

REG15

(V)

60

40

20

14.2

14.4

14.6

14.8

15.0

14.0

0

80

REG15 VOLTAGE vs. INPUT VOLTAGE

MAX5042 toc11

INPUT VOLTAGE (V)

V

REG15

(V)

70

60

50

40

30

14.4

14.5

14.6

14.7

14.8

14.9

15.0

14.3

20

80

REG9 VOLTAGE

vs. REG9 LOAD CURRENT

MAX5042 toc12

REG9 LOAD CURRENT (mA)

V

REG9

(V)

30

20

10

9.05

9.10

9.15

9.20

9.25

9.30

9.00

0

40

V

REG15

= 20V

REG9 OUTPUT VOLTAGE

vs. REG15 VOLTAGE

MAX5042 toc13

REG15 VOLTAGE (V)

V

REG9

(V)

35

30

25

9.1

9.2

9.3

9.4

9.0

20

40

V

POSINPWM

= 48V

REG5 VOLTAGE

vs. REG5 LOAD CURRENT

MAX5042 toc14

REG5 LOAD CURRENT (mA)

V

REG5

(V)

16

12

8

4

4.8

4.9

5.0

5.1

4.7

0

20

V

REG15

= 20V

REG5 OUTPUT VOLTAGE

vs. REG15 VOLTAGE

MAX5042 toc15

REG15 VOLTAGE (V)

V

REG5

(V)

35

30

25

4.98

4.99

5.00

5.01

5.02

4.97

20

40

V

POSINPWM

= 48V

SOFT-START CURRENT

vs. TEMPERATURE

MAX5042 toc16

TEMPERATURE (°C)

SOFT-START CURRENT (

µ

A)

100

75

50

25

0

-25

28

29

30

31

32

33

27

-50

125

MINIMUM RCFF LEVEL, MINIMUM OPTO

LEVEL vs. TEMPERATURE

MAX5042 toc17

TEMPERATURE (°C)

V

OPTO

, V

RCFF

(V)

100

75

50

25

0

-25

0.5

1.0

1.5

2.0

2.5

3.0

0

-50

125

V

RCFF

V

OPTO

I

PULLUP

INTO OPTO AND

RCFF = 2mA, CSS = 0