Charging Regulator IC for Secondary Batteries Compatible with CV (Constant-Voltage) Charging 105℃ Compatible XC6242 Series

Jun 13, 2022

Torex Semiconductor Ltd. (Tokyo Japan: President, Koji Shibamiya, 6616: Prime Market at Tokyo Stock Exchange has launched a new charging regulator IC specializing in CV (constant voltage) charging compatible secondary batteries with an operating temperature range of 105°C -- XC6242 series,.

In recent years, a variety of battery types such as semi-solid state batteries and all-solid state batteries have been developed, The XC6242 series is a dedicated IC optimized for CV charging of 2.3V small lithium secondary batteries (LTO batteries). By supporting the operating temperature of + 105 ° C this time, it has become possible to charge CV to batteries used in high temperature environments such as industrial applications. (Fig.1)

The charging regulator ICs have an output voltage compatible with the charging voltage of 2.3V-type lithium secondary batteries, and are capable of charging without exceeding the maximum charging voltage limit of secondary batteries in the temperature range up to +105°C. While charging is not being performed, the sink current to charging ICs from secondary batteries can be kept to a low level, contributing greatly to the extension of battery drive times.

The package uses ultra-compact and low-profile USPN-4 (0.9 x 1.2 x h0.4mm) (Fig.2), which contributes to the miniaturization of the entire device.

Fig 1. Example of IoT device power supply solution using XC6242

Fig 2. Package USPN-4 (0.9 x 1.2 x h0.4mm)