MAX17710
Energy-Harvesting Charger and Protector
ABSOLUTE MAXIMUM RATINGS
BATT to GND...........................................................-0.3V to +6V
CHG to GND ...........................................................-0.3V to +6V
LX to PGND .............................................................-0.3V to +6V
GND to PGND ......................................................-0.3V to +0.3V
FB, AE, LCE, SEL1, SEL2, REG,
PCKP to GND .......................................-0.3V to VBATT + 0.3V
CHG Continuous Current
Continuous Power Dissipation (T A = +70 N C)
UTDFN (derate 15mW/ N C above +70 N C)...................1200mW
Operating Temperature Range .......................... -40 N C to +85 N C
Junction Temperature .....................................................+150 N C
Storage Temperature Range............................ -65 N C to +150 N C
Lead Temperature (soldering, 10s) ................................+300 N C
Soldering Temperature (reflow) ......................................+260 N C
(limited by power dissipation of package) ...................100mA
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-
tion 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.
ELECTRICAL CHARACTERISTICS
(V CHG = +4.3V, Figure 1 , T A = -40 N C to +85 N C, unless otherwise noted. Typical values are at T A = +25 N C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CHG Input Maximum Voltage
CHG Enable Threshold
V CE
Limited by shunt regulator (Note 2)
4.875
4.07
5.3
4.15
5.7
4.21
V
V
CHG Quiescent Current
I QCHG
V CHG = 4.0V rising, V BATT = 4.0V
625
1300
nA
CHG Shunt Delay
25
F s
CHG Input Shunt Limit
(Note 2)
50
mA
CHG Maximum Input Current
V CHG input current limited by Absolute
Maximum Ratings
50
100
mA
V CHG = 4.0V, I CHG = 1 F A
45
CHG-to-BATT Dropout Voltage
V CHG = 4.0V, I BATT = -6mA
V CHG = 4.0V, I BATT = -20mA
V CHG = 4.0V, I BATT = -40mA
55
65
100
mV
BATT REG
BATT Regulator Voltage
BATT Regulation Delay
V CHG = 4.2V, starting at 4V
Regulator in dropout;
V CHG = 4.15V, V BATT = 4.12V
4.065
4.125
30
450
4.160
1030
V
F s
BATT Quiescent Current
I QBATT
Harvest standby (AE pulse low)
V CHG = 0V, V BATT = 2.1V to 4.0V
AE regulator on, boost off;
V CHG = 0V, V BATT = 4.0V, AE high
1
725
165
1650
nA
Maxim Integrated
LCE regulator on, boost off;
V BATT = 4.0V, LCE mode (Note 3)
150
550
2
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