STEVAL-ISV012V1 Datasheet, PDF (1/7 Pages) STMicroelectronics – Up to 5 W solar battery charger for single-cell Li-ion and Li-Pol batteries based on the SPV1040 and L6924D

STEVAL-ISV012V1
Up to 5 W solar battery charger for single-cell Li-ion and
Li-Pol batteries based on the SPV1040 and L6924D
Data brief
Features
■ SPV1040: solar boost converter with
embedded maximum power point tracking
(MPPT)
– Proprietary “perturb & observe” MPPT
algorithm
– Up to 95% efficiency
– Very low input voltage (down to 0.3 V)
– Input reverse polarity protection
– Thermal shut-down
– Overcurrent protection
– Enable pin
■ L6924D: Fully integrated linear charger
solution with power MOSFET, reverse blocking
diode and battery thermal control
– 1% battery voltage regulation accuracy
– Up to 1 A charge current with 7% accuracy
– Closed loop thermal regulation protection
for output current control
– Low battery leakage current
– Embedded quasi-pulse charging mode
maximizes charge rate from solar panel
– Selectable 4.1 V and 4.2 V output voltage
– JEITA compliant with external circuit
– Programmable charge, fast charge (up to 1
A), pre-charge, termination current, pre-
charge mode voltage threshold, charge
timer
– Multifunction pin for flexible charge process
termination
– Status outputs to drive LEDs or host
processor interface
– Battery absence detection
– NTC or PTC thermistor interface for battery
temperature monitoring and protection
– RoHS compliant
STEVAL-ISV012V1
July 2011
Doc ID 018897 Rev 2
For further information contact your local STMicroelectronics sales office.
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