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 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 charger 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

● 2.55V Trickle Charge Threshold

● Power Input Voltage up to 26.5V

● Fully Integrated Current Sense and Pass Component

● Selectable Charge Current

● Selectable EOC Current

● Internal Thermal Foldback Function and Thermal Protection

● 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