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SC89171

High Efficiency, Synchronous Buck Charger for 1-4 cell Li-ion Battery with PowerPath management

SC89171SC89171

SC89171

High Efficiency, Synchronous Buck Charger for 1-4 cell Li-ion Battery with PowerPath management

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 4A charging current and provides battery charge management functions including trickle charge, constant current charge, constant voltage charge, charge termination, auto recharge and charging status indication. SC89171 also integrates NMOS driver and PMOS driver for Powerpath management, it is easy to support dynamic power management for charging and system power. The SC89171 supports flexible charge current and input current option, and the user can program the current freely through external resistor for different applications. 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.
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 4A charging current and provides battery charge management functions including trickle charge, constant current charge, constant voltage charge, charge termination, auto recharge and charging status indication. SC89171 also integrates NMOS driver and PMOS driver for Powerpath management, it is easy to support dynamic power management for charging and system power. The SC89171 supports flexible charge current and input current option, and the user can program the current freely through external resistor for different applications. 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.
Product Details
Design / Development
Technical Documentation
Applications

Product Details

Design / Development

Parameters
Value
EVM Model
SC89171 EVM
Key Part Number
SC89171
Input Voltage
4.2V-24V
Number of Battery Sections
1/2/3/4
Maximum charging current
5A
Functions
Power Selector,IINDPM,Battery detection,
SC89171 EVM

Technical Documentation

Parameter NameParameter Value
VIN range4-24V
Abs. VIN (max)30V
Battery Cell #1-4s
MOSInt
Charge Current (max)5A
TopologyBuck
Rec’d app. Power Level16W typ. For 1S
Parameter NameParameter Value
Prog. IlimRes Prog
NTC√ Jeita
Safety Timer√
Power√
FeaturesBattery Detection/Thermal Regulation
PackageQFN3.5x5.5
Parameter NameParameter Value
VIN range4-24V
Abs. VIN (max)30V
Battery Cell #1-4s
MOSInt
Charge Current (max)5A
TopologyBuck
Rec’d app. Power Level16W typ. For 1S
Prog. IlimRes Prog
NTC√ Jeita
Safety Timer√
Power√
FeaturesBattery Detection/Thermal Regulation
PackageQFN3.5x5.5