This is high-performance off-line PWM controller for low-power AC/DC chargers and power adapter.
The M5840 is a high-performance off-line PWM power switch used in low-power AC/DC battery chargers, power adapters, and LEDs. The constant voltage and constant current accuracy can be maintained within ±5% within the full voltage input range. The chip adopts the primary side feedback technology, so that the TL431 and optocoupler can be saved in the system application to reduce the cost.
1. Constant voltage and constant current accuracy up to 5%
2. Primary side control mode, no need for TL431 and optocoupler
This is 80W x 2 channel, Class H, AF Power amplifer, THD = 0.8%.
The STK412-220 is a power amplifier integrated circuit (IC) produced by Sanyo Semiconductor Corporation. It is a hybrid IC that combines an analog power amplifier with a digital control circuit in one package. TheSTK412220 is designed for use in audio power amplification applications, such as audio systems in vehicles and home theater systems. It features high output power, low distortion, and good heat dissipation.
The STK412-000 series are class H audio power amplifier ybrid ICs that feature a built-in shift power supply circuit. These ICs provide high efficiency audio power amplification by controlling (switching) the supply voltage supplied to the power transistors according to the detected level of the input audio signal.