MP2664 Datasheet: I2C-Controlled Battery Charger





MP2664 I2C-Controlled Battery Charger Datasheet

Part Number MP2664
Description I2C-Controlled Battery Charger
Manufacture MPS
Total Page 30 Pages
PDF Download Download MP2664 Datasheet PDF

Features: MP2664 500mA, 5V USB, I2C-Controlled Bat tery Charger with Power Path Management for Single-Cell Li-Ion Battery in QFN Package DESCRIPTION The MP2664 is a hi ghly integrated, single-cell, Li-ion/Li -polymer battery charger with system po wer path management for space-limited, portable applications. The MP2664 uses input power from either an AC adapter o r a USB port to supply the system load and charge the battery independently. T he charger features constant current pr e-charge, constant current fast-charge (CC) and constant voltage (CV) regulati on, charge termination, and charge stat us. The power path management function ensures continuous power to the system by automatically selecting the input, t he battery, or both to power the system . This power stage features a low dropo ut regulator from the input to the syst em and a 100mΩ switch from the batter y to the system. Power path management separates the charging current from the system load, which allows for proper charge termination and keep.

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MP2664
500mA, 5V USB, I2C-Controlled
Battery Charger with Power Path Management
for Single-Cell Li-Ion Battery in QFN Package
DESCRIPTION
The MP2664 is a highly integrated, single-cell,
Li-ion/Li-polymer battery charger with system
power path management for space-limited,
portable applications. The MP2664 uses input
power from either an AC adapter or a USB port
to supply the system load and charge the
battery independently. The charger features
constant current pre-charge, constant current
fast-charge (CC) and constant voltage (CV)
regulation, charge termination, and charge
status.
The power path management function ensures
continuous power to the system by
automatically selecting the input, the battery, or
both to power the system. This power stage
features a low dropout regulator from the input
to the system and a 100mswitch from the
battery to the system. Power path management
separates the charging current from the system
load, which allows for proper charge termination
and keeps the battery in full-charge mode.
The MP2664 provides system short-circuit
protection (SCP) by limiting the current from the
input to the system and the battery to the
system. This feature is especially critical for
preventing the Li-ion battery from being
damaged by excessively high currents. An on-
chip battery under-voltage lockout (UVLO) cuts
off the path between the battery and the system
if the battery voltage drops below the
programmable battery UVLO threshold, which
prevents the Li-ion battery from being over-
discharged. An integrated I2C control interface
allows the MP2664 to program the charging
parameters, such as input current limit, input
voltage regulation limit, charging current,
battery regulation voltage, safety timer, and
battery UVLO.
The MP2664 is available in a QFN-10
(2mmx2mm) package.
FEATURES
Fully Autonomous Charger for Single-Cell
Li-Ion/Li-Polymer Batteries
Complete Power Path Management for
Simultaneously Powering the System and
Charging the Battery
±0.5% Charging Voltage Accuracy
13V Maximum Voltage for the Input Source
I2C Interface for Setting Charging
Parameters and Status Reporting
Fully Integrated Power Switches and No
External Blocking Diode Required
Built-In Robust Charging Protection
Including Battery Temperature Monitoring
and Programmable Timer
PCB Over-Temperature Protection (OTP)
System Reset Function
Built-In Battery Disconnection Function
Thermal Limiting Regulation On-Chip
Available in a QFN-10 (2mmx2mm)
Package
APPLICATIONS
Wearable Devices
Smart Handheld Devices
Fitness Accessories
Smart Watches
All MPS parts are lead-free, halogen-free, and adhere to the RoHS
directive. For MPS green status, please visit the MPS website under
Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are
trademarks of Monolithic Power Systems, Inc. or its subsidiaries.
MP2664 Rev. 1.01
www.MonolithicPower.com
11/12/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
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