MP163AGS-33-Z

PMIC - AC DC Converters, Offline Switchers

The MP163AGS-33-Z is a Multiphase PWM Controller IC (Integrated Circuit) belonging to the PMIC (Power Management IC) family of products. It is a high-performance, low-cost single-chip solution for advanced AC-DC power converters to facilitate efficient energy conversion and providing reliable power system design. It is designed to address the needs of low to medium power offline switch-mode power supplies (SMPS). This IC has multiple features like programmable hysteresis control, adjustable voltage well, programmable dimming modes and supports various topologies.

Applications

The MP163AGS-33-Z features a peak current-mode driving circuit with built-in Optoisolators, that enables it to be used in a wide range of applications that make use of different switching power supply topologies. It is used in such applications as LED lighting, power supplies, battery-powered applications, motor drives and others. This IC is also well-suited for applications that require multiple voltage rails due to its channel synchronization feature.

Working Principle

The working principle of the MP163AGS-33-Z is based on the Peak Current-Mode PWM Converter, which is used to convert AC line power into DC power with adjustable peak current. It makes use of an Optoisolator to transfer the control signal from the external bias voltage to the internal power stage. The internal circuit containing a power-stage controller, an oscillator, and a voltage regulator, generates the required PWM pulses and the commanded power output. This PWM controller IC is able to adjust the duty cycle and switching frequency of the power stage by varying the input bias voltage.

The MP163AGS-33-Z is also capable of providing channel synchronization when multiple voltage rails are required. It allows the channel switching to remain in phase, thus allowing for improved efficiency as well as reducing common mode noise. The IC is also equipped with different protection functions like thermal shutdown, out-of-phase protection and voltage spike protection, for increased safety and reliability.

Conclusion

The MP163AGS-33-Z is a cost-effective and highly efficient IC for PMIC applications that require low to medium power. It combines robust features like adaptive hysteresis current mode, adjustable voltage well, programmable dimming modes and supports various topologies. It is an ideal choice for various power applications such as LED lighting, power supplies, battery-powered applications, motor drives and others.