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SMB137

Summit Microelectronics
Part Number SMB137
Manufacturer Summit Microelectronics
Description Programmable Switching Li+ Battery Charger
Published Jan 12, 2009
Detailed Description SMB137 Programmable Switching Li+ Battery Charger with USB/AC Input, CurrentPath™ Manager, TurboChargeTM Mode*, Low Batt...
Datasheet PDF File SMB137 PDF File

SMB137
SMB137

Overview
SMB137 Programmable Switching Li+ Battery Charger with USB/AC Input, CurrentPath™ Manager, TurboChargeTM Mode*, Low Battery Recovery* and USB On-The-Go Support FEATURES & APPLICATIONS • Standalone or CPU-controlled operation • 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 TM from AC adapter using proprietary “TurboCharge 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 www.
DataSheet4U.
com USB port with deeply discharged cells – no start-up delay • USB On-the-Go (OTG) power support (up to 500mA @ +5V) • Reverse current blocking prevents inadvertent battery discharge • High-efficiency step-down regulator with 2MHz switching • Precision integrated current sensing • +4.
35 to +5.
5V input voltage range • +16V input tolerance (non-operating)...


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