• Complete Charger for Single-Cell Li-Ion or Polymer Batteries
• Integrated Pass Element and Current Sensor
• No External Blocking Diode Required
• Low Component Count and Cost
• Programmable Charge Current
• Programmable End-of-Charge Current
• Charge Current Thermal Foldback for Thermal Protection
• 2.55V Trickle Charge Threshold
• 6.8V Input Over-Voltage Protection for SGM4056-6.8
• 10.5V Input Over-Voltage Protection for SGM4056-10.5
• 26.5V Maximum Voltage for the Power Input
• Power Presence and Charge Indications
• Less than 1μA Leakage Current off the Battery When
No Input Power Attached or Charger Disabled
• Available in Green TDFN-3×3-8L, TDFN-2×3-8L,
TDFN-2×2-8L and SOIC-8 (Exposed Pad) Packages
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• 16V input standoff voltage
• 4.2V charge termination voltage
• 2.9V trickle charge threshold
• Charge current programmable, up to 1.2A
• 250nA BAT current when no charging
• Soft-start limits in-rush current
• ESOP8 / DFN2x2-8 / DFN2x3-8 / SOT23-6
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