Rainbow-electronics MAX1538 Manual de usuario descargar pdf (Pagina 8)

MAX1538

Power-Source Selector for

Dual-Battery Systems

8 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(Circuit of Figure 1. T

= +25°C, unless otherwise noted.)

SOURCE SELECTION CHANGE

MAX1538 toc10

2.00µs/div

10V

DISB

(10V/div)

DISA

(10V/div)

BATB

AC-COUPLED

(5V/div)

BATSEL

OUT0

10V

20V

10V

TRANS

INDUCTIVE KICK

NO CAPACITOR

AT BATB

BATTERY INSERTION

MAX1538 toc06

5.00ms/div

10V

DISB

(10V/div)

OUT0

(10V/div)

DISA

BATA

EXTLD

10V

20V

10V

SYSTEM LOAD = 3A

BATB

= 16.8V

BATA

= 10V

CONTACT BOUNCE

B: BATTERY INSERTION BLANKING TIME = 22ms

BATTERY REMOVAL TIMING

MAX1538 toc08

4.00µs/div

10V

10.2V

9.8V

OUT0

(10V/div)

DISB

DISA

EXTLD

9.6V

10V

5 x MINV

MINV

ADP

FOR

ADAPTER

REMOVAL

TIMING)

TRANS

BATA

= 16.8V

BATTERY B

REMOVED

SYSTEM LOAD = 3A

SOURCE SELECTION CHANGE

MAX1538 toc09

2.00µs/div

10V

DISB

(10V/div)

DISA

(10V/div)

BATB

AC-COUPLED

(5V/div)

BATSEL

OUT0

10V

20V

10V

TRANS

INDUCTIVE KICK

BATB

= 1µF

SYSTEM LOAD = 3A

BATTERY REMOVAL

MAX1538 toc07

5.00ms/div

10V

DISB

(10V/div)

OUT0

(10V/div)

DISA

BATA

EXTLD

10V

20V

10V

CONTACT BOUNCE

BATB

= 16.8V

BATA

= 10V

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 21 22

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Rainbow-electronics MAX1538 Manual de usuario Pagina 8

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