SGM4056.pdf? Complete Charger for Single-Cell Li-Ion orPolymer 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 ThermalProtection
? 2.55V Trickle Charge Threshold
? 6.8V Input Over-Voltage Protectionfor SGM4056-6.8
? 10.5V Input Over-Voltage Protectionfor SGM4056-10.5
? 26.5V Maximum Voltage for the Power Input
? Power Presence and Charge Indications
? Less than 1μA Leakage Current off the BatteryWhen
No Input Power Attached or ChargerDisabled
? Available in Green TDFN-3×3-8L, TDFN-2×3-8L,
TDFN-2×2-8L and SOIC-8 (Exposed Pad) Packages
? 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
