GENERAL DEscriptION

The SGM4056 is a low cost battery charger with integrated high input voltage capability for single-cell Li-Ion or Li-polymer batteries. The SGM4056 has a CC/CV charge profile required for Li-Ion battery. The SGM4056 features the over-voltage protection (OVP) function. The OVP threshold is typically 6.8V (SGM4056-6.8) or 10.5V (SGM4056-10.5). The SGM4056 accepts a 26.5V maximum voltage for power input, when VIN > VOVP, the charger is disabled.

The SGM4056 has a charge indication feature. When the charger is disabled or the input is floating, the leakage current from the battery is < 1μA.

The SGM4056 is available in Green TDFN-3×3-8L, TDFN-2×3-8L, TDFN-2×2-8L and SOIC-8 (Exposed Pad) packages and is rated over the -40℃ to +85℃ temperature range.

FEATURES

Input Over-Voltage Protection Thresholds:

6.8V (TYP) for SGM4056-6.8

10.5V (TYP) for SGM4056-10.5

Trickle Charge Threshold: 2.55V 

Power Input Voltage up to 26.5V

Less Components and Low Cost

Selectable Charge Current

Selectable EOC Current

Thermal Regulation Function

Charging Status Indication

1μA (MAX) Leakage Current when Charger Disabled or Input Floating

Available in Green TDFN-3×3-8L, TDFN-2×3-8L, TDFN-2×2-8L and SOIC-8 (Exposed Pad) Packages

APPLICATIONS

Handheld Devices

Smart Phones

Portable Internet Devices and Accessory

Standalone Chargers