PL3378 Overview
PL3378 is a high efficiency Primary Side Regulator and highly integrated PWM Power Switch for AC/DC power supply applications. It simplifies conventional CC/CV charger/adaptor designs by eliminating the opto-coupler and secondary control circuitry. Constant output voltage and current regulation is realized as shown in the Fig.1 below.
PL3378 Key Features
- Built-in Integrated Power BJT
- Accurate Constant Current
- Eliminates Opto-coupler and all
- Adjustable Output Cable pensation
- Adaptive Multi-mode PFM Control for Improving Efficiency
- Low Start-up Current
- Built-in Leading Edge Blanking (LEB)
- Cycle-by-Cycle Current Limiting
- VDD Under Voltage Lockout and VDD over voltage protection
- Built-in Short Circuit Protection and Output Overvoltage Protection
PL3378 Applications
- Built-in Integrated Power BJT