MAX17710
Energy-Harvesting Charger and Protector
Table 1. Summary of Typical Quiescent Current vs. Operating Conditions
NAME
Standby
Shutdown
Full Charge
Dropout
Charge
MODE
Cell Connection:
Regulator outputs off,
no charger present
UVLO or Shutdown:
Regulator outputs off,
no charger present
Charger Present:
Regulator outputs off,
cell charging
Charger in Dropout:
Regulator outputs off,
charger present, but
below regulation voltage
CONDITIONS
Cell connected to circuit
during assembly
V BATT falls below 2.15V
or AE and LCE pulsed low
V CHG = 4V,
V CHG > V BATT,
AE pulsed low
V CHG = 4.15V,
V BATT = 4.12V,
AE pulsed low
I QBATT
(nA)
1
1
1
450
I QCHG
(nA)
625
TOTAL QUIESCENT
CURRENT (nA)
1 (from cell)
1 (from cell)
626 (from energy-harvesting
cell); can harvest down to
1μW
450 (from cell)
AE Regulator On:
AE Active
Boost off, no charge
AE pulsed high
725
725 (from cell)
source present
AE and LCE
Active
AE and LCE Regulators
On: Boost off, no charge
source present
LCE pulsed high after AE
pulsed high
875
875 (from cell)
LCE Regulator On:
AE pulsed high, then LCE
LCE Active
Boost off, no charge
pulsed high, then AE pulsed
150
150 (from cell)
Maxim Integrated
source present
low
5
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