MAX1773A Ver la hoja de datos (PDF) - Maxim Integrated
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MAX1773A Datasheet PDF : 20 Pages
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Power Source Selector for
Dual-Battery Systems
ELECTRICAL CHARACTERISTICS (continued)
(VBATA = VBATB = 16.8V, CVDD = 3.3µF, VMINV = 0.93V, VEXTLD = VACDET = 28V, VTCOMP = 3V, VTHMA = VTHMB = 1.65V,
VBATSEL = 0, CCOMA = CCOMB = CDISA = CDISB = CCHGA = CCHGB = CPDS = 5nF, TA = 0°C to +85°C, unless otherwise noted.)
PARAMETER
DIS_ Turn-On Clamp Voltage
(VDIS_ to VEXTLD)
STATUS OUTPUTS
ACPRES Sink Current
BATSTAT Sink Current
ACPRES Leakage Current
BATSTAT Leakage Current
TRANSITION TIMES
Battery Switchover Delay
Battery Action Delay
Thermistor Action Delay
AC to Battery Switchover Delay
Battery to AC Switchover Delay
CHG_ Turn-On Delay
CONDITIONS
VEXTLD = 8V to 28V
VEXTLD = 4.75V to 8V
V ACPRES = 0.4V
V ACPRES = 5.5V
VBATSTAT = 0.4V
VBATSTAT = 5.5V
V ACPRES = 5.5V
VBATSTAT = 5.5V
VACDET = 2.2V, VMINV = 0.93V (Note 6)
VACDET = 2.2V, VMINV = 0.93V (Note 7)
VACDET = 2.2V, VMINV = 0.93V (Note 8)
VACDET = 2.2V, VMINV = 0.93V (Note 9)
VACDET = 2.2V, VMINV = 0.93V (Note 10)
(Note 11)
MIN TYP MAX UNITS
-11.5 -9.5 -7.5
V
-8.00
-4.25
1
mA
30
1
mA
0.1
1
µA
0.1
1
µA
5
µs
260
µs
12
µs
10
µs
260
µs
130
300
530
µs
ELECTRICAL CHARACTERISTICS
(VBATA = VBATB = 16.8V, CVDD = 3.3µF, VMINV = 0.93V, VEXTLD = VACDET = 28V, VTCOMP = 3V, VTHMA = VTHMB = 1.65V,
VBATSEL = 0, CCOMA = CCOMB = CDISA = CDISB = CCHGA = CCHGB = CPDS = 5nF, TA = -40°C to +85°C, unless otherwise noted.)
PARAMETER
EXTLD Supply Voltage Range
BATA, BATB Supply Voltage Range
BATA, BATB Quiescent Current
(Current from the higher voltage supply)
BATA, BATB Quiescent Current
(Current from the lower voltage supply)
EXTLD Quiescent Current
LINEAR REGULATOR
VDD Output Voltage
VDD Power-Supply Rejection Ratio
VDD Undervoltage Lockout
COMPARATORS
TCOMP Undervoltage Lockout
CONDITIONS
VEXTLD > VBATA and VBATB
VBATA = 4.75V to 19V,
VBATB = 4.75V to 19V,
IVDD = 0
VACDET = 28V
VACDET = 2.2V to
VBATA and VBATB
VBATA = 4.75V to 19V,
VBATB = 4.75V to 19V,
IVDD = 0
VACDET = 28V
VACDET = 2.2V to
VBATA and VBATB
VACDET = 28V, VEXTLD = 28V
VACDET = 2.2V to VBATA and VBATB, VEXTLD = 16V
MIN
4.75
4.75
TYP MAX UNITS
28.00
V
19.00
V
8
µA
70
8
µA
13
55
µA
8
IVDD = 0 to 100µA
IVDD = 100µA to 1mA
VBATA or VBATB = 5V to 19V, VEXTLD = 5V
VBATA = VBATB = 5V, VEXTLD = 5V to 28V
Hysteresis is typically 50mV
3.234
3.168
2.0
3.367
3.432
1.0
1.0
3.0
V
mV/V
V
(Note 2)
0
1.1
V
4 _______________________________________________________________________________________
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