Rainbow-electronics MAX1531 Manuel d'utilisateur télécharger pdf (Page 9)

MAX1530/MAX1531

Multiple-Output Power-Supply Controllers for

LCD Monitors

_______________________________________________________________________________________ 9

Typical Operating Characteristics (continued)

(Circuit of Figure 1; including R5, R6, and D2; T

= +25°C, unless otherwise noted.)

LR4 NORMALIZED LOAD REGULATION

MAX1530 toc19

LOAD CURRENT (mA)

VOLTAGE ERROR (%)

400300200100

-0.5

-0.4

-0.3

-0.2

-0.1

-0.6

0 500

LR4 NORMALIZED LINE REGULATION

MAX1530 toc20

INPUT VOLTAGE (V)

OUTPUT-VOLTAGE ERROR (%)

211713

-0.8

-0.6

-0.4

-0.2

0.2

-1.0

925

200mA LOAD CURRENT

LR4 LOAD TRANSIENT

MAX1530 toc21

s/div

A: LR4 OUTPUT VOLTAGE, 100mV/div, AC-COUPLED

B: LR4 LOAD CURRENT, 500mA/div

10V

0mA

LR4 PULSED LOAD TRANSIENT

MAX1530 toc22

s/div

A: LR4 OUTPUT VOLTAGE, 100mV/div, AC-COUPLED

B: LR4 LOAD CURRENT, 1A/div

10V

MAX1531

OVERCURRENT PROTECTION (CSH, CSL)

MAX1530 toc23

s/div

A: V

, 10V/div

B: V

OUT

, 5V/div

C: V

RESET

, 5V/div

D: V

CSH

- V

CSL

, 500mV/div

LR5 BASE CURRENT

vs. DRV5 VOLTAGE

MAX1530 toc24

DRV5 VOLTAGE (V)

BASE CURRENT (mA)

4321

FBL5

= 0V

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 32 33

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Rainbow-electronics MAX1531 Manuel d'utilisateur Page 9

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