SOUTHCHIP SC89171
The SC89171 is a highly integrated switch-mode buck charger • for 1-4 cells Li-ion battery applications. It supports 4-24V input, • up to 5A charging current and provide battery charge management functions including trickle charge, constant current charge, constant voltage charge, charge termination, • auto recharge and charging status indication. • The SC89171 supports flexible charge current and input • current option, and the user can program the current freely through external resistor for different applications.DESCRIPTION
2FEATURES
SC89171 also integrates NMOS driver and PMOS driver for● Powerpath management, it is easy to support dynamic power management for charging and system power.
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● The SC89171 supports input current limit, input over voltage and under voltage protections, internal cycle by cycle current
● limit, battery short circuit protection, and battery over voltage protection. It also offers charging safety timer and battery
● temperature protection to ensure safety under different
● abnormal conditions. Besides, SC89171 keeps monitoring IC temperature and
● automatically decreases charging current to ensure IC working
● in normal temperature range.
● The SC89171 is available in QFN-3.5*5.5 package.
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● Wide input voltage: 4V~24V, 30V sustainable Integrated low-Rdson synchronous buck charger, efficiency up to 97% Charging Management (Trickle Charge / Constant Current Charge / Constant Voltage Charge / Charge Termination/Auto-Recharge) Adjustable Input Current Limit and Chargin...