LP4081H 16V, I2C Controlled Linear Charger with Power Path
■The LP4081H is an ultra-low power linear charger targeting at wearable applications protected up to 16V input voltage. It contains a linear charger to charge the Li-ion battery. An I2C interface is offered for programmability and flexibility of the device. The charger has an ideal-diode mode for high efficiency and low heat operation. The LP4081H integrates the power path management function to support SoC powerup even with a deeply-discharged battery. The LP4081H features 150mΩ low Rds,on of the BAT_FET from the battery to the system to achieve high discharge efficiency and low heat.
■The LP4081H provides rich protections, including the input Under-volage lockout protection (UVLO), input over- voltage protection (OVP) and system short circuit protection (SCP).
■The typical quiescent current of LP4081H is 0.6-μA and the battery current is reduced to 0.4-uA in ship mode.
■The whole system is in a 10-pin 3 X 3 DFN package
●FEATURES:
■Input over-voltage protected up to 16V
■Charge Management
▲Programmable charge current up to 1A
▲Programmable floating voltage with 0.3% accuracy
▲Programmable trickle charge and termination current
■Charge and discharge current monitor
■Automatic re-charge and thermal foldback
■I2C bus to SoC with an interrupt pin
■Low drop-out fast charge function
■Power Path Management
■Charge safety timer and watchdog
■NTC management
■Rich protections: UVLO, OVP, SCP
■0.6-μA ultra-low iq in standby mode
■0.4-μA ultra-low iq in ship mode
■3mm Χ 3mm DFN-10 package
■RoHS Compliant and 100% Lead (Pb) Free
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[ Wearable ][ Fitness Application ][ Smart Watch ] |
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Datasheet |
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Please see the document for details |
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DFN |
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English Chinese Chinese and English Japanese |
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10/5/2022 |
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Rev 1p0 |
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2 MB |
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