MAX1773 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX1773 Datasheet PDF : 20 Pages
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Power Source Selector for
Dual-Battery Systems
(TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
TRANSITION FROM
BATTERY A TO BATTERY B (TCOMP)
(IEXTLD = 4A, CEXTLD = 66µF)
MAX1773-07
12V
11V
VEXTLD
4V
VCOMA
VDISA
VCOMB
TRANSITION FROM
BATTERY A TO BATTERY B (TCOMP)
(IEXTLD = 4A, CEXTLD = 66µF)
MAX1773-08
10V
0
10V
0
10V
0
TRANSITION FROM
BATTERY A TO BATTERY B (BATSEL)
(IEXTLD = 4A, CEXTLD = 66µF)
MAX1773-09
11V
VEXTLD
10V
VBATSEL
4V
VTHMA
10µs/div
VBATA = 10.5V AT 4A
VBATB = 12V AT 4A
0
VDISB
5µs/div
VBATA = 10.5V AT 4A
VBATB = 12V AT 4A
10V
0
0
50µs/div
VBATA = 9.4V AT 4A
VBATB = 10.8V AT 4A
VACDET
VBATA
TRANSITION FROM
AC ADAPTER TO BATTERY A
(IEXTLD = 4A, CEXTLD = 66µF)
MAX1773-10 20V
10V
20V
VEXTLD
VDISA
10V
0
20µs/div
VBATA = 10.8V AT 4A
VACADAPTER = 17.5V AT 4A
TRANSITION FROM
TRANSITION FROM BATTERY A TO AC ADAPTER
(IEXTLD = 4A, CEXTLD = 66µF)
MAX1773-11 10A
IBATA
(CURRENT FROM
0
THE BATTERY)
-10A
VBATA
12V
10V
10V
VDISA
0
VCHGA
10V
0
100µs/div
VACADAPTER = 17.5A AT 4A
VBATA = 10.5V AT 4A
VACADAPTER APPLIED AT 240µs
CHARGER INPUT OPEN
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