New voltage detector designed for CV charging of secondary batteries

Torex Semiconductor Ltd. has developed the new XC6142 series voltage detector, specially designed for CV charging secondary batteries with an operating temperature of 105C.

The series is a battery voltage monitoring IC optimised for 2.3V lithium secondary batteries, such as LTO batteries, including newly developed semi-solid-state batteries. It is designed to work alongside the XC6242 charging regulator IC and supports battery operation at temperatures up to 105C.

The series features detection and release voltages optimised for the characteristics of 2.3V lithium secondary batteries. The detection voltage can be selected between 1.6V and 2.1V to match the battery's internal resistance. The release voltage is fixed at 2.45V, which is set at an optimal level for initiating charging with the charging regulator IC.

By using the XC6142 battery voltage monitor together with the XC6242 charging regulator, a simple, compact, low-power, and cost-effective charging solution can be implemented for 105C batteries employed in high-temperature industrial applications – without the necessity for conventional charging ICs that need complex control.

The package lineup includes the ultra-compact and low-profile USPQ-4B05 (1mm x 1mm x 0.33mm) and the SSOT-24 package, contributing to the miniaturisation of devices.