TOP254GN

Introduction

The TOP254GN is a monolithic integrated offline multiple output switch mode power supply (SMPS) that is specifically designed for high performance consumer and telecom applications. It is specifically designed for maximum compactness and flexibility. The TOP254GN is intended for use in personal computers, consumer electronics, data communications, and other applications requiring high performance and low cost.

Application Field and Working Principle

The TOP254GN is a cost-effective and multifunctional PMIC – AC DC Converters and Offline Switchers solution. The TOP254GN integrates a 48V to 24V offline switching circuit,active PFC, secondary AFE and one universal digital control unit into a single package. Moreover, TOP254GN provides control functions for secondary voltage with high precision adjustment. The product supports both stand-alone and digital control of the secondary outputs with single on-board digital controller.

Master High Current Output

The TOP254GN has a master high current output (V1) which is capable of delivering up to 4A constant current. This output is suitable for applications such as providing power to the main logic/processor (CPU). An internal switch mode regulator is used to ensure that the V1 output voltage remains stable over the specified temperature range.

Multiple Output Capability

The TOP254GN also has multiple outputs. These outputs are capable of delivering up to 2A of constant current each. Unlike the V1 output, these outputs do not require an internal switch mode regulator and can therefore be used for applications such as providing standby power to peripheral devices.

Stability and Protection

The TOP254GN is designed to provide robust and reliable operation over a wide temperature range. It is equipped with various protection functions including over current, over voltage and over temperature protection. In addition, the TOP254GN also features an intelligent built-in input current limiting system to ensure optimal power conversion.

Conclusion

The TOP254GN is a cost-effective and multifunctional PMIC – AC DC Converters and Offline Switchers solution. With its master high current output and multiple outputs, the TOP254GN is able to provide robust power conversion performance. In addition, various protection features ensure safe and reliable operation over a wide temperature range.