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BCT2601D
I2C Controlled 1-Cell 3A Battery Charger
for High Input Voltage and NVDC Power Path Management
BCT2601D
I2C Controlled 1-Cell 3A Battery Charger
for High Input Voltage and NVDC Power Path Management
GENERAL DESCRIPTION
The BCT2601D are battery chargers and system power path management devices with integrated converter and power switches for using with single-cell Li-Ion or Lipolymerbatteries. This highly integrated 3A device is capable of fast charging and supports a wide input voltage range suitable for smart phones, tablets and portable systems. I2 C programming makes it a very flexible powering and charger design solution.
The devices include four main power switches: input reverse blocking FET (RBFET, Q1), high-side switching FET for Buck or Boost mode (HSFET, Q2), low-side
switching FET for Buck or Boost mode switching (LSFET, Q3) and battery FET that controls the interconnection of the system and battery (BATFET, Q4). Thebootstrap diode for the high-side gate driving is also integrated. The internal power path has a very low impedance that reduces the charging time and maximizes the battery discharge efficiency. Moreover, the input voltage and current regulations provide maximum charging power delivery to the battery with various types of input sources.
APPLICATIONS
Smart Phones, EPOS
Portable Internet Devices and Accessory
FEATURES
3.9V to 13.5V Operating Input Voltage Range
Up to 22V Sustainable Voltage
High Efficiency, 1.5MHz, Synchronous Buck Charger
93.8% Charge Efficiency at 1.02A from 5V Input
89.8% Charge Efficiency at 2A from 9V Input
Optimized for 9V/12V Input
Selectable PFM Mode for Light Load Efficiency
USB On-The-Go (OTG) Support (Boost Mode)
Boost Converter with up to 1.2A Output
Boost Efficiency of 93.5% at 0.5A and 92.2% at 1A Accurate Hiccup Mode Over-Current Protection Soft-Start Capable with up to 500μF Capacitive Load
Output Short Circuit Protection Selectable PFM Mode for Light Load Operations Programmable Input Current Limit (IINDPM) and Dynamic Power Management to Support USB Standard Adapters Maximum Power Tracking by Programmable Input Voltage Limit (VINDPM) with Selectable Offset
● VINDPM Tracking of Battery Voltage
● Auto Detect USB BC1.2, SDP, CDP, DCP and Non-Standard Adaptors
● High Battery Discharge Efficiency with 26mΩ Switch
● Narrow Voltage DC (NVDC) Power Path Management
Instant-On with No or Highly Depleted Battery
Ideal Diode Operation in Battery Supplement Mode
● Ship Mode, Wake-Up and Full System Reset Capability by Battery FET Control Flexible Autonomous and I2 C Operation Modes for Optimal System Performance
Fully Integrated All MOSFETs, Current Sense and Compensation
2.5μA Ship Mode Low Battery Leakage Current High Accuracy
±0.6% Charge Voltage Regulation (8mV/Step)
±5% Charge Current Regulation at 1.38A
±33% Charge Current Regulation at 60mA
±10% Input Current Regulation at 0.9A
Safety Battery Temperature Sensing(Charge/Boost Modes)
Thermal Regulation and Thermal Shutdown
Input Under-Voltage Lockout (UVLO)
Input Over-Voltage (ACOV)Protection
