MAX17710
Energy-Harvesting Charger and Protector
ELECTRICAL CHARACTERISTICS (continued)
(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
LINEAR LDO REGULATOR
V PCKP = 4.0V, I REG = 50 F A, SEL1 = open
3.22
3.3
3.37
REG Voltage
REG Voltage, LCE Mode
(Note 3)
V PCKP = 4.0V, I REG = 50 F A, SEL1 = GND
V PCKP = 4.0V, I REG = 50 F A, SEL1 = BATT
V PCKP = 4.0V, I REG = 50 F A, SEL1 = open
V PCKP = 4.0V, I REG = 50 F A, SEL1 = GND
V PCKP = 4.0V, I REG = 50 F A, SEL1 = BATT
2.25
1.75
2.9
2.1
1.6
2.3
1.8
3.3
2.3
1.8
2.375
1.9
3.7
2.5
2.05
V
V
V REG = 2.15V, V PCKP = 3.8V, AE high
75
mA
REG Current Limit
REG Startup Time
V REG = 2.15V, V PCKP = 3.8V, LCE mode
(Note 3)
V PCKP = 4.0V, AE rising, C REG = 1 F F
SEL1 = open
50
2.175
5.3
F A
ms
LCE Threshold High (Note 4)
V IH-LCE
SEL1 = GND
1.575
V
SEL1 = BATT
SEL1 = open
1.30
0.9
LCE Threshold Low (Note 5)
V IL-LCE
SEL1 = GND
0.6
V
PCKP REGULATOR
SEL1 = BATT
0.5
AE Threshold High
AE Threshold Low
V IH-AE
V IL-AE
1.13
0.15
V
V
AE Low Input Current
AE High Input Current
V AE = 0V, persists < 1 F s
V AE = 0V, persists > 1 F s
V AE = 3.6V
-4
-2
1
1
F A
nA
nA
PCKP Enable Threshold
PCKP Charge Current
PCKP Impedance Ramp Rate
BATT Undervoltage Lockout
(UVLO) Delay
BATT UVLO Delay
BATT UVLO Threshold
t UVLO1
t UVLO2
REG enabled
V PCKP = 0V, V BATT = 2.2V
V BATT = 4.0V, resistance between BATT
and PCKP from high impedance to 5 I
V BATT = 2.15V, AE high, first ramp of
PCKP
V BATT = 2.15V, AE high, not first PCKP
ramp
AE regulator active, LCE regulator inactive
LCE regulator active, AE regulator inactive
3.62
1.990
3.7
100
5
5
0.5
2.15
3
3.78
2.30
V
mA
ms
s
ms
V
Maxim Integrated
3
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