XC6122A443MR-G

The XC6122A443MR-G is categorized as a PMIC (Power Management IC) Supervisor. It is manufactured by

Ricoh Electronics and is a multichip power supply monitor IC with constant voltage/constant current

functions.

Application Field

The XC6122A443MR-G is designed for use in power supplies and is suitable for a wide range of applications

in mobile communication terminals, including laptop PCs, wearable devices, digital cameras, industrial

control systems, and general purpose consumer electronics. It is capable of monitoring voltage and

current and can detect over-voltage, under-voltage, and over-current conditions.

Working Principle

The XC6122A443MR-G is a three channel IC that integrates one supervisory comparator as well as two

controllers for constant voltage (CV) and constant current (CC) operations. The CV controller operates

with a fixed output voltage, while the CC controller operates with a fixed output current.

The IC is designed to accept an input of 3.0 to 16.0 VDC with a minimum current range of 0.5 A, and

supports a maximum current of 8.0 A. The output voltage can be set as low as 0.6 V and can reach a

maximum of 12.8 V. It is rated for a maximum power dissipation of 1.6 W.

The IC is highly reliable with over-current and over-temperature protection. It incorporates an

automatic N-channel MOSFET (N-MOSFET) that detects over-current conditions under both CC and CV

modes. If the IC detects an over-current condition, it will switch off the N-MOSFET to protect the

system.

The XC6122A443MR-G also features accurate built-in monitoring functions, allowing it to accurately

detect and notify of over-voltage or under-voltage conditions. In addition, it incorporates a unique

soft-start circuit that ensures smooth startup of the power supply.

Conclusion

The XC6122A443MR-G is an advanced PMIC (Power Management IC) Supervisor designed for use in

power supplies. It is designed to monitor voltage and current and detect over-voltage, under-voltage,

and over-current conditions. It also features accurate built-in monitoring functions, over-current and

over-temperature protection, and a unique soft-start circuit.