MAX1773(2017) Просмотр технического описания (PDF) - Maxim Integrated
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MAX1773 Datasheet PDF : 20 Pages
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MAX1773/MAX1773A
Power Source Selector for
Dual-Battery Systems
Electrical Characteristics
(VBATA = VBATB = 16.8V, CVDD = 3.3μF, VMINV = 0.93V, VEXTLD = VACDET = 28V, VTCOMP = 3V, VTHMA = VTHMB = 1.65V,
VBATSEL = 0V, CCOMA = CCOMB = CDISA = CDISB = CCHGA = CCHGB = CPDS = 5nF, TA = -40°C to +85°C, unless otherwise noted.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
EXTLD Supply Voltage Range
BATA, BATB Supply Voltage Range
VEXTLD > VBATA and VBATB
4.75
28
V
4.75
19
V
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
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
8
µA
70
8
µA
13
55
µA
8
VDD Output Voltage
VDD Power-Supply Rejection Ratio
VDD Undervoltage Lockout
COMPARATORS
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
TCOMP Undervoltage Lockout
(Note 2)
0
1.1
V
THM_ Input Voltage Range
0
5.5
V
THM_ Input Leakage Current
TCOMP Input Voltage Range
ACDET Operating Voltage Range
(Note 3)
VTHM_= 5.5V
VTHMA = VTHMB = 0 to 5.5V
VBATA = VBATB = VEXTLD = 4.75V
100
NA
0
5.5
V
0
4.3
2.2
28
V
ACDET Logic Threshold High
2.2
V
ACDET Input Bias Current
ACDET to BATA Trip Threshold
ACDET to BATA Hysteresis
VACDET = 3V, VACDET < VBATA and VBATB
VACDET = 3V, VACDET < VBATB, VBATA = 0
VACDET = 28V, VACDET > VBATA and VBATB
VACDET falling with respect to VBATA
-35
100
8
9
µA
11
+125 mV
200
mV
ACDET to BATB Trip Threshold
ACDET to BATB Hysteresis
VACDET falling with respect to VBATB
-35
+125 mV
100
200
mV
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