LT1512CN8 - SEPIC Constant-Current/Constant-Voltage Battery Charger

The LT1512CN8 is a versatile and robust battery charger integrated circuit developed by Linear Technology, designed to provide precise constant-current/constant-voltage charging capabilities. This component is particularly well-suited for applications requiring a wide input voltage range and the ability to charge a variety of battery chemistries including NiCd, NiMH, Lead-Acid, and Lithium batteries.

Key Features:

• Wide Input Voltage Range: The LT1512CN8 operates efficiently with an input voltage range from 4.5V to 40V, making it adaptable for use in multiple applications and with various power sources.
• Adjustable Charging Current: Users can set the output current to a desired level up to 1.5A by selecting the appropriate sense resistor.
• SEPIC Topology: The Single-Ended Primary-Inductor Converter (SEPIC) topology allows for the charging voltage to be greater than, less than, or equal to the input voltage, providing flexibility in battery charging applications.
• Constant-Current/Constant-Voltage Operation: This IC ensures batteries are charged efficiently and safely by providing constant current until the battery reaches its peak voltage, then switching to constant voltage mode to top off the charge.
• Low Dropout Operation: The LT1512CN8 is capable of charging the battery even when the input voltage approaches the battery voltage, thanks to its low dropout design.
• Thermal Protection: Built-in thermal shutdown ensures the device operates within safe temperature ranges, protecting both the charger and the battery during high-power or high-temperature conditions.

Applications:

The LT1512CN8 is ideal for portable devices, consumer electronics, and industrial equipment that require reliable battery charging solutions. Its ability to handle a broad range of battery chemistries and voltages makes it a versatile choice for designers looking to create a universal charging solution.

Package Information:

The device is offered in an 8-lead PDIP package, providing a compact solution that is easy to integrate into a wide array of electronic systems.

Overall, the LT1512CN8 stands out as a high-performance, adaptable, and reliable battery charging solution from Linear Technology, catering to the needs of a diverse set of applications and industries.