Kinetic Technologies™ Announces New Active-Clamp Current-Mode PWM Controller for Up to 80V Input, 200W Output

KTB2140: Optimized for High Efficiency, Supporting Full Range Power Over Ethernet (PoE) bt and 200W Telecom Applications

Power management leader, Kinetic Technologies, is expanding its portfolio with the introduction of KTB2140. This single-chip, highly integrated active-clamp current-mode PWM controller solution is designed for isolated power supply and Power over Ethernet (PoE) Powered Devices (PD) and significantly improves efficiency, while reducing the PCB area.

This KTB2140 current-mode PWM controller can operate as an active-clamp flyback or forward converter, with a wide 8V to 80V input range. It is optimized for highest efficiency with best-in-class dead-time programmable range and ultra-fast MOSFET gate driver rise and fall times. Programmable spread-spectrum switching frequencies give designers flexibility to mitigate EMI problems. Switching frequencies ranging from 100kHz up to 1.2MHz allow small form factor designs with smaller transformers. Protection features include OCP, short-circuit, thermal, under-voltage lockout (UVLO) and over-voltage protection (OVP).

KTB2140 fully supports the IEEE® 802.3bt 90W specifications and is also compliant with IEEE® 803.2af/at applications. Key applications for the new KTB2140 include Conference Systems, Wireless LAN Access Points, Security Cameras, and 30W–200W Switch-Mode Power Supplies.

Senior Director of Product Marketing at Kinetic, Erik Ogren, says, “Artificial Intelligence (AI) is driving many emerging product trends including needs for higher efficiency in Datacom, Telecom and additional power-hungry features in PoE PDs. Our newest current-mode controller solution not only brings higher efficiency for 48V designs up to 200W, but does it with smaller PCB area.”

KTB2140 is available and shipping now. Visit the Kinetic Technologies website for more information.

Product features include:

• Fully IEEE^® Std. 802.3bt compliant
• PWM peak current mode controller
• Dual low side gate driver
• High efficiency topologies:
  • Flyback, Forward
  • Flyback with synchronous rectification
  • Flyback with active clamp
  • Forward with active clamp
• >1.5A Output Gate Drive Capability
• Wide V_IN Range: 8V to 80V Supports both isolated and non-isolated applications
• Programmable fixed frequency up to 1.2MHz
• Integrated Short-Circuit Protection
• Programmable Soft Start Time
• Programmable dead time
• Programmable slope compensation
• Internal pull-up resistor in feedback for optocoupler and isolated connection
• Over current, OV/UVLO, and thermal Protection
• Programmable Frequency Dithering for Low EMI Spread-Spectrum Operation
• Synchronous External Clock
• Soft turn off
• Maximum duty-cycle limit
• Internal high voltage start-up regulator
• -40°C to +125°C Junction Temperature Range
• Small 3mm x 3mm WQFN Package

About Kinetic Technologies

Kinetic Technologies™ designs, develops and markets proprietary high-performance analog and mixed-signal power and protection semiconductors across consumer, computing, communications, industrial, automotive and enterprise markets. The company’s product portfolio brings solutions that convert, protect, regulate, and monitor power consumed by analog and digital semiconductors and other electronic loads. Kinetic Technologies is headquartered in San Jose, California operating as a fabless semiconductor manufacturer with R&D centers based in Silicon Valley and Asia. Operations and customer sales support are found globally. For more information, please visit our website at https://www.kinet-ic.com.

*The Kinetic Technologies logo is a trademark of Kinetic Technologies. All other brand and product names appearing in this document are the property of their respective holders.

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