MAX1773(2017) 查看數據表（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
Absolute Maximum Ratings
VBATA, VBATB to GND............................................-0.3V to +20V
VCOMA to GND...................................... -0.3V to (VBATA + 0.3V)
VCOMB to GND......................................-0.3V to (VBATB + 0.3V)
VCHGA, VCHGB, VEXTLD, VACDET to GND...........-0.3V to +30V
VPDS, VDISA, VDISB to GND................-0.3V to (VEXTLD + 0.3V)
VDD, VBATSEL, VACPRES, VBATSTAT, VTCOMP,
VMINV to GND......................................................-0.3V to +6V
VTHMA, VTHMB (Note 1)..........................................-0.3V to +6V
Continuous Current out of THMA, THMB............................20mA
IACPRES, IBATSTAT Sink Current.........................................30mA
Continuous Power Dissipation (TA = +70°C)
20-Pin TSSOP (derate 7.0mW/°C above +70°C).........560mW
Operating Temperature....................................... -40°C to +85°C
Storage Temperature......................................... -65°C to +150°C
Lead Temperature (soldering, 10s).................................. +300°C
Note 1: Signals on THMA and THMB below -0.3V are clamped by internal diodes limit forward diode current to maximum continuous
current. When voltage on these pins is below -0.3V.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Package Information
PACKAGE TYPE: 20 TSSOP
Package Code
Outline Number
Land Pattern
U20-2
21-0066
90-0116
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
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 = 0°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)
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
MIN TYP MAX UNITS
4.75
28
V
4.75
19
V
5
8
µA
40
70
BATA, BATB Quiescent Current
(Current from the lower voltage supply)
VBATA = 4.75V to 19V,
VBATB = 4.75V to 19V,
IVDD = 0
VACDET = 28V
VACDET = 2.2V to
VBATA and VBATB
5
8
8
13
µA
EXTLD Quiescent Current
VACDET = 28V, VEXTLD = 28V
VACDET= 2.2V to VBATA and VBATB,
VEXTLD = 16V
35
55
µA
5
8
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