The CM6802TAHX is a highly integrated power management IC from Champion Microelectronic Corp. designed for use in a variety of power supply applications. It combines several key functions into a single chip, simplifying power supply design and reducing component count. This IC is known for its efficiency and comprehensive protection features, making it suitable for demanding applications.

Applications

• Power supplies for desktop PCs
• Power adapters for laptops
• LED lighting drivers
• Industrial power supplies
• Battery chargers

Features

• PWM controller with current-mode operation
• Built-in high voltage startup circuit
• Low startup current
• Overvoltage protection (OVP)
• Overcurrent protection (OCP)
• Overload protection (OLP)
• Short circuit protection (SCP)
• Thermal shutdown protection (OTP)
• Adjustable switching frequency
• Soft-start function
• Frequency jittering for improved EMI performance

Benefits

• Simplified power supply design due to high integration
• Reduced component count lowers BOM cost
• High efficiency minimizes power loss and heat generation
• Comprehensive protection features ensure reliable operation
• Improved EMI performance reduces electromagnetic interference
• Adjustable switching frequency allows optimization for different applications

Additional Details

The CM6802TAHX operates using a current-mode PWM control scheme, providing excellent line and load regulation. The integrated high-voltage startup circuit allows for efficient startup with minimal external components. The adjustable switching frequency allows designers to optimize the power supply for efficiency, size, and EMI performance. The soft-start function minimizes stress on power components during startup. The comprehensive suite of protection features including OVP, OCP, OLP, SCP, and OTP ensures safe and reliable operation under a variety of fault conditions.

This IC is typically available in a small outline package (SOP), making it suitable for space-constrained applications. Refer to the manufacturer's datasheet for complete specifications, application notes, and recommended external component values. The datasheet also details the available protection features and their specific trigger levels. Proper heatsinking may be required depending on the output power and operating conditions.