GENERAL DESCRIPTION

The SGM41523/SGM41523A/SGM41523B/SGM41523C/ SGM41523D are compact switch standalone battery chargers for single-cell Li-Ion or Li-polymer battery. They are featured with resistor programmable maximum charge current, ordering selections of preset end of charge current and pre-charge current and floating time out. The SGM41523/SGM41523A/ SGM41523B/SGM41523C/SGM41523D also have other safety features, such as over-voltage and over-current protections, fold-back retaining, input under-voltage lockout, battery temperature monitoring and thermal shutdown. These features ensure safe and reliable operation, ease of design and a comfortable user experience.

The SGM41523/SGM41523A/SGM41523B/SGM41523C/ SGM41523D are available in a Green TDFN-3×3-12L package. They operate over an ambient temperature range of -40℃ to +85℃.

APPLICATIONS

Portable Audio Speaker

Mobile Phone

Wearables

EPOS

FEATURES

● Maximum 2.5A Charging for 4.1V to 4.45V Battery

● 1.33MHz Switch Frequency

● Up to 95.7 Charge Efficiency

● 93 Charge Efficiency at 1.5A from 5V Input

● 91 Charge Efficiency at 1.5A from 9V Input

● Charging Voltage and Current Programmable

● CC/CV Interface for Charge Current and Battery Voltage Settings

● 4.2V Input Voltage Regulation

● 4.2V to 12V Operating Input Voltage Range

● Up to 18V Sustainable Voltage

● 13.5V Over-Voltage Protection with 100ns Turn-Off Timer

● Output Voltage Fold-Back Retaining

● Optional High or Low Charge Enable

? Active Low (SGM41523/SGM41523A/SGM41523D)

? Active High (SGM41523B/SGM41523C)

● JEITA Guideline Compliance

? T2 Threshold 10℃(SGM41523/SGM41523B/SGM41523D)

? T2 Threshold 15℃ (SGM41523A/SGM41523C)

? Charge Prohibited when > T3 (SGM41523D)

● -40℃ to +85℃ Operating Temperature Range

● Available in a Green TDFN-3×3-12L Package