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MAX8677A Datasheet(PDF) 2 Page - Maxim Integrated Products

Part No. MAX8677A
Description  1.5A Dual-Input USB/AC Adapter Charger and Smart Power Selector
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX8677A Datasheet(HTML) 2 Page - Maxim Integrated Products

 
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1.5A Dual-Input USB/AC Adapter Charger
and Smart Power Selector
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDC = 5V, THM = CEN = USUS = GND, VBAT = 4V, VPEN1 = VPEN2 = 5V, USB, TSET, DONE, CHG, DOK, UOK, FLT are unconnected,
TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
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.
DC, PEN1 to GND .................................................-0.3V to +16V
USB to GND .............................................................-0.3V to +9V
VL to GND ................................................................-0.3V to +4V
BAT, SYS, CEN, USUS, PEN2, TSET to GND...........-0.3V to +6V
THM, PSET, ISET, CT to GND .........................-0.3V to VL + 0.3V
DONE, CHG, DOK, UOK, FLT to GND.....................-0.3V to +6V
EP (exposed paddle) to GND ...............................-0.3V to +0.3V
DC Continuous Current (total in 2 pins) ........................2.4 ARMS
SYS Continuous Current (total in 2 pins) .......................2.4 ARMS
USB Continuous Current (total in 2 pins) ......................2.0 ARMS
BAT Continuous Current (total in 2 pins).......................2.4 ARMS
Continuous Power Dissipation (TA = +70°C)
(derate 27.8 mW/°C above +70°C) .......................... 2222mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature Range ............................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DC-TO-SYS PREREGULATOR
DC Operating Range
4.1
6.6
V
DC Standoff Voltage
VBAT = VSYS = 0V
14
V
DC Undervoltage Threshold
When VDOK goes low, VDC rising, 500mV typical hysteresis
3.95
4.0
4.05
V
DC Overvoltage Threshold
When VDOK goes high, VDC rising, 100mV typical hysteresis
6.8
6.9
7.0
V
ISYS = IBAT = 0mA, VCEN = 0V
1
2
DC Supply Current
ISYS = IBAT = 0mA, VCEN = 5V
0.8
1.5
mA
DC Shutdown Current
VDC = VCEN = USUS = 5V, VPEN1 = 0V
195
333
µA
DC-to-SYS On-Resistance
ISYS = 400mA, VCEN = 5V
0.2
0.35
DC-to-BAT Dropout Voltage
When SYS regulation and charging stops, VDC falling,
150mV hysteresis
10
50
90
mV
RPSET= 1.5k
1800
2000
2200
RPSET = 3k
900
1000
1100
RPSET = 6.3k
450
475
500
VPEN1 = 0V, VPEN2 = 5V
(500mA USB mode)
450
475
500
DC Current Limit
(See Table 2 for Input Source
Control)
VDC = 6V, VSYS = 5V,
TA = +25°C
VPEN1 = 0V, VPEN2 = 0V
(100mA USB mode)
80
95
100
mA
PSET Resistance Range
1.5
6.3
k
SYS Regulation Voltage
VDC = 6V, ISYS = 1mA to 1.75A, VCEN = 5V
5.1
5.3
5.5
V
Connecting DC when no USB present
1.5
ms
Input Current Soft-Start Time
Connecting DC with USB present
50
µs
Thermal-Limit Temperature
Die temperature at which charging and input current limits
are reduced
100
°C
Thermal-Limit Gain
ISYS reduction/die temperature (above +100°C)
5
%/°C
VL Voltage
IVL = 0mA to 10mA
3.0
3.3
3.6
V


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