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SMB137C データシート - Summit Microelectronics

部品番号コンポーネント説明メーカー
SMB137C Programmable Switching Li+ Battery Charger with USB/AC Input, CurrentPath™ Manager, TurboChargeTM Mode*, Low Battery Recovery*, AICL* and USB OTG/HDMI/MHL Support Summit-Microelectronics
Summit Microelectronics Summit-Microelectronics
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SMB137C データシート PDF : SMB137C pdf   
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INTRODUCTION
The SMB137C is a programmable single-cell lithiumion/lithium-polymer battery charger designed for a variety of portable applications. Unlike conventional charging devices, the SMB137C’s high-efficiency switch-mode operation eliminates the low charge current and thermal problems of conventional linear solutions. In addition, the switching architecture in conjunction with programmability enables dramatically faster charging – TurboCharge™ mode - from current limited inputs such as USB.

FEATURES
• Automatic Input Current Limit for universal USB/AC/DC adapter compatibility*
• Optional automatic power source detection per latest USB charging specification 1.2
• USB or AC input with automatic input selection and programmable input current limiting (USB2.0 compliant)
• Up to 750mA charging output from 500mA USB port or 1500mA from AC adapter using proprietary “TurboChargeTM Mode”
• Input/output CurrentPath™ control allows system operation with deeply discharged/missing battery – no start-up delay
• “Low Battery Recovery” mode for >500mA startup from 100mA USB port with deeply discharged cells – no start-up delay*
• USB OTG, HDMI, MHL power support (up to 500mA @ +5V)
• Hardware programmable support for JEITA
• High-efficiency step-down regulator with 3MHz switching
• +4.35 to +6.0V input voltage range
• +18V input tolerance (non-operating)
• High-accuracy float voltage regulation: 1.0%
• Digital programming of major parameters via I2C interface*
• Comprehensive protection features
• Tiny CSP-30 package

APPLICATIONS
• Smartphones
• Tablet PCs
• Portable Media Players
• Perfect Companion for MSM Chipsets

 

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