SG-Micro SGM41528 | Demoboard SGM41528 Demo Board

Description

SGM41528 is a battery charger and system power path management device for 2 lithium-ion or lithium-polymer batteries. Its low-impedance power path optimizes efficiency, reduces battery charging time, and extends battery life. I2C programming makes it a flexible power supply and charger design solution.SGM41528 Capable of detecting input source types, including SDP/CDP/DCP and non-standard adapters, via the USB BC1.2 compliant D+/D- pin.

Features

• 3.9V to 6.2V operating input voltage range
• Up to 20V sustainable voltage
• Fully integrated with all MOSFETs, current sensing, and compensation
• High-efficiency, 2A, 1.5MHz boost charger: Up to 92.5% charging efficiency at 1A charging current at 7.6V battery voltage
• USB OTG with 4.5V to 5.5V Adjustable Output: Up to 2A Output, Up to 94.5% Efficiency at 5.1V/1A Output
• Selectable PFM mode and no audio (OOA) mode for light load operation
• Narrow Voltage DC (NVDC) power path management
• I2The C port is used for flexible system parameter setting and status reporting
• The integrated ADC monitors input voltage, input current, battery voltage, charge current, system voltage, battery temperature, and chip temperature
• 13mΩ switch for high battery discharge efficiency
• USB BC1.2 and non-standard input source adapters are automatically detected
• The Input Current Optimizer (ICO) maximizes the adapter output current without overload
• Programmable input current limit (IINDPM) and dynamic power management with support for USB standard adapters
• Maximum power tracking with programmable input voltage limit (VINDPM).
• Safety features include configurable JEITA battery temperature protection
• Battery charge safety timer
• thermal regulation and thermal shutdown
• Watch Dog Monitoring I2C operation
• VBUS/system/battery overvoltage protection
• Output overcurrent protection for boost and OTG buck modes

Typical applications

• Portable internet devices and accessories, Smartphones

More information

• Datasheet
• IC product information