The MP2770 is a highly integrated, flexible switch-mode battery charge management and system power path management device. It is designed for single-cell Li-ion and Li-Polymer batteries, and it can be used in a wide range of portable applications.
The device has an integrated IN to SYS pass-through path to pass the input voltage (VIN) to the system, even when charging is disabled. When input power is present, the device operates in charge mode. The device automatically detects the battery voltage (VBATT) and charges the battery in three phases: pre-charge, constant current (CC) charge, and constant voltage (CV) charge.
With the integrated input current limit and VIN regulation function, the MP2770 manages the input power to meet the priority of the system power demand. In the absence of an input source, the MP2770 can switch to boost mode to power the IN or SYS pin from the battery.
The IC can flexibly configure the charging and boosting parameters, such as the VIN clamp, input current limit, charging current, charge full voltage, boost output voltage, and current limit, among others.
Safety features include output short-circuit protection (SCP), input over-voltage protection (OVP), battery under-voltage protection (UVP), thermal shutdown, and battery temperature monitoring, among others.
The MP2770 is available in a QFN-18 (3mmx4mm) package.
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3.6V to 4.45V Configurable Charge Regulation Voltage with ±0.5% Accuracy
Supports USB 2.0, USB 3.0/3.1/3.2, USB Type-C and PD Input Current Limit Setting
Minimum VIN Loop for Maximum Adapter Power Tracking
Up to 18W Boost Output Power with a 3V Battery
Boost Output Voltage From 4.3V to 16V with 20mV/Step
Boost Output Current From 500mA to 3.65A with 50mA/Step
Low to 12µA Battery Leakage in Standby Mode
10mΩ or 5mΩ Battery Current-Sense Resistor
Battery Discharge Current Limiting
Up to 1.6x Overload Capability for 2ms
Light Load Detection and Output Plug-In Detection for SYS Port
Integrated 8-Bit Analog-to-Digital Converter (ADC) to Monitor VIN, the System Voltage (VSYS), BATT Voltage (VBATT), PMID Voltage (VPMID), IQ1 Current (IQ1), BATT Current (IBATT), SYS Current (ISYS), and NTC
Real-Time Charging Parameter Configurations and Status Reporting
Comprehensive Safety Features:
Charging Safety Timer and Watchdog
Thermal Regulation and Shutdown
Customizable JEITA for Battery Temperature Monitor
Cycle-by-Cycle Over-Current Protection (OCP)
SYS Over-Current (OC) Limit and Short-Circuit Protection (SCP)