The THX202H-8V is a power management integrated circuit (PMIC) designed for offline switching power supply applications. The "-8V" designation indicates a specific voltage setting or configuration variant within the THX202H series. It is engineered to provide efficient and reliable power conversion for a wide range of consumer and industrial electronics, with a focus on minimizing external components and simplifying design complexity.

Applications

• Adapters and chargers for mobile phones, tablets, and other portable devices
• Standby power supplies for home appliances (e.g., TVs, set-top boxes)
• LED lighting drivers
• Power supplies for small industrial control systems
• General-purpose offline power supplies

Features

• Integrated high-voltage power MOSFET
• Current-mode PWM control for high efficiency
• Frequency jittering to reduce electromagnetic interference (EMI)
• Over-temperature protection (OTP)
• Over-current protection (OCP)
• Over-voltage protection (OVP)
• Under-voltage lockout (UVLO)
• Short-circuit protection (SCP)
• Soft-start function to minimize component stress

Benefits

• Simplified Design: Integrated MOSFET reduces external components, simplifying power supply design and lowering BOM costs.
• High Efficiency: Current-mode PWM control optimizes power conversion efficiency, minimizing power loss and heat generation.
• Reliable Operation: Comprehensive protection features ensure robust and reliable operation under various fault conditions.
• Improved EMI Performance: Frequency jittering reduces EMI, facilitating compliance with regulatory requirements.
• Cost-Effective Solution: High integration level and reduced component count result in a cost-effective power supply solution.

Additional Details

The THX202H-8V is typically designed to operate within a wide input voltage range (e.g., 85VAC to 265VAC) for global compatibility. The switching frequency is generally fixed internally, often around 65 kHz. The "-8V" suffix signifies a specific output voltage characteristic, indicating that this particular variant is designed for applications requiring that precise voltage level. The integrated soft-start feature minimizes stress on the power MOSFET and other components during startup, enhancing reliability. Its suite of protection features and high efficiency make it a suitable choice for many low to medium power offline applications.