Rainbow-electronics MAX8982X Manual de usuario descargar pdf (Pagina 24)

Power-Management ICs for

ICERA E400/E450 Platform

MAX8982A/MAX8982X

Typical Operating Characteristics (continued)

(MAX8982A: V

IN1A

= V

IN1B

= 5V, MAX8982X: V

IN1A

= V

IN1B

= V

DDA

= V

DDB

= V

IN4

= 3.3V, C

REFBP

= 0.1µF, T

= -40°C to +85°C,

Circuits of Figures 2 and 3, unless otherwise noted. Typical values are at T

= +25°C. Limits are 100% production tested at T

= +25NC,

unless otherwise noted. Limits over the temperature range are guaranteed by design.

)

LDO7 LOAD REGULATION

MAX8982A toc29

LOAD CURRENT (mA)

OUTPUT VOLTAGE (V)

806020 40

2.990

2.995

3.000

3.005

3.015

3.010

3.020

3.025

2.985

0 100

LDO8 LOAD REGULATION

(MAX8982A ONLY)

MAX8982A toc30

LOAD CURRENT (mA)

OUTPUT VOLTAGE (V)

80604020

2.990

2.995

3.000

3.005

3.010

3.015

3.020

2.985

0 100

LDO9 LOAD REGULATION

MAX8982A toc31

LOAD CURRENT (mA)

OUTPUT VOLTAGE (V)

80604020

0.902

0.900

0 100

LED CURRENT ACCURACY

vs. LED CURRENT SETTING

MAX8982A toc32

LED CURRENT (mA)

LED CURRENT ACCURACY (%)

2015105

-2

-4

0 25

LED3

LED2

LUMEX SML-LX2832SISUGSBC

LED FLASH WAVEFORMS

MAX8982A toc33

24mA

LED2

LED3

1s/div

OVERVOLTAGE PROTECTION

MAX8982A toc34

5V/div

1V/div

2V/div

IN_

BUCK1

BUCK2

LDO1

400µs/div

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 72 73

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Rainbow-electronics MAX8982X Manual de usuario Pagina 24

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