SG-Micro SGM41542 | Demoboard SGM41542EVM

Beschreibung

The SGM41541/SGM41542 are battery chargers and system power path management devices with integrated converter and power switches for using with single-cell Li-Ion or Li-polymer batteries. This highly integrated 3.78A device is capable of fast charging and supports a wide input voltage range suitable for smart phones, tablets and portable systems. I2C programming makes it a very flexible powering and charger design solution.

Eigenschaften

• High Efficiency, 1.5MHz, Synchronous Buck Charger
• 95% Charge Efficiency at 1A from 5V Input
• 91.4% Charge Efficiency at 2A from 9V Input
• Optimized for USB Voltage Input (5V)
• Selectable PFM Mode for Light Load Efficiency
• USB On-The-Go (OTG) Support (Boost Mode)
• Boost Converter with up to 2A Output
• Boost Efficiency of 93.5% at 0.5A and 94.3% 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
• Single Input for USB or High Voltage Adapters
• 3.9V to 13.5V Operating Input Voltage Range
• 22V Absolute Maximum Input Voltage Rating
• Programmable Input Current Limit and Dynamic Power Management (IINDPM, 100mA to 3.1A with 100mA Resolution & 3.8A) to Support USB 2.0 and USB 3.0 Standards and High Voltage Adaptors
• 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 19mΩ 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 I2C Operation Modes for Optimal System Performance
• Fully Integrated Switches, Current Sense and Compensation
• External Direct Charging Path Enable Output
• 9μA Ship Mode Low Battery Leakage Current
• High Accuracy
• ±0.6% Charge Voltage Regulation (8mV/Step)
• ±5% Charge Current Regulation at 2A
• ±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

Typische Anwendungen

• Portable Internet Devices and Accessory
• Smart Phones, EPOS

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers