Renesas Electronics Corporation Integrated Circuits (ICs) - Power Management (PMIC) - Supervisors X40421V14I-B

The X40421V14I-B from Quarktwin Technology Ltd. is a dual voltage supervisor designed for monitoring supply voltages ranging from 1.6V to 5.5V. It features integrated power-on reset control, a watchdog timer, and a secondary voltage monitoring capability. The device can assert reset signals based on three standard threshold settings (4.6V/2.9V, 4.6V/2.6V, and 2.9V/1.6V) and allows for programmable low voltage reset thresholds. This supervisor includes a battery switch backup function, enabling it to switch between V CC and V BATT to maintain power to external circuits during main power failures. It can provide an output current of 5mA to 50mA from V CC and 250µA from V BATT. The device operates with a typical standby current of 25µA when the watchdog is active and 1µA in backup mode. The X40421V14I-B also incorporates a 4kbit EEPROM with write protection features and a 400kHz 2-wire interface for communication. It is available in a 14-lead TSSOP package and is suitable for applications in communications equipment, industrial systems, and computer systems. This product is particularly useful for engineers looking for a reliable voltage monitoring solution with integrated EEPROM functionality.