March 04, 2009 - ON Semiconductor, a leading global supplier of high performance, energy efficient, silicon solutions has introduced the CAT4106 - a new 6-watt (W) LED driver with an integrated, high-power DC-DC boost converter and on -chip diagnostics to maximize efficiency in larger, general purpose LCD panel backlighting applications.
As the company's first multi-channel boost device, the CAT4106 is capable of driving as many as 40 white LEDs – or four strings of 10 LEDs with up to 36 volts (V) per string - for a total of 6 W of LED output power Additionally, the device enables designers to maximize backlighting efficiency and reduce space via its built-in diagnostics functions, which automatically adjust the output voltage to drive the highest forward voltage (Vf) string with the minimum head room voltage.![]()
Typical application circuit with CAT4106.
The channel of the circuit and the short circuit LED will be detected And flagged on the FAULT logic output (active-low, open-drain). The device also provides thermal shutdown and overvoltage protection (OVP).
The CAT4106 features low dropout LED channels of 500 millivolts (mV) at 175 milliamps (mA) and a high-frequency pulse width modulation (PWM) interface, which supports multiple frequencies up to 2 kilohertz (kHz), providing precise, high-resolution Dimming control while the device remains automatic biased.
Features:
• Four matched output LED channels
• Integrated DC-DC boost converter
• Up to 6-watts LED total output power
• Low dropout LED channels, 500 mV at 175 mA
• High-frequency PWM interface, up to 2 kHz
• On-chip diagnostics with adjustable Short/Open LED detection
Packaging:
• 16-lead TQFN, 4 mm x 4 mm
• 16-Lead TSSOP, 4.4 mm, exposed thermal pad
Price and Availability:
The CAT4106 LED driver is available in a space-saving 4 mm x 4 mm 16-lead TQFN package and a 16-lead TSSOP package with an exposed thermal pad for enhanced power dissipation for $1.06 USD per unit in 10,000 unit quantities. Boards are available now. Projected lead-time for production quantities is currently 6 to 8 weeks ARO.
About ON Semiconductor:
With its global logistics network and strong product portfolio, ON Semiconductor is a preferred supplier of high performance, energy efficient, silicon solutions to customers in the power supply, automotive, communication, computer, consumer, medical, industrial, mobile phone, and military/ Aerospace markets. The company's broad portfolioves power management design problems in space- and energy-constrained applications from feature-rich handheld devices through large line-powered systems. From the novice power designer to the power expert, National's products, people and design tools enable Customers to design green-powered systems with complex power supplies in the shortest amount of time. High-performance products include switching regulators such as National's flagship SIMPLE SWITCHER® family, and application-specific products including white-LED drivers and Power-over-Ethernet Controllers. More information about National's power management products is available at http:// Al.com/power .
Availability and Pricing:
Available now, the LM3433 is priced at $2.25 each in 1,000-unit quantities.
About National's PowerWise Brand:
National's PowerWise brand reflects the company's energy-efficient product portfolio. It signifies products with outstanding performance-to-power at the component level, as well as products that provide an outstanding, energy-efficient solution when coupled with other National parts. National's PowerWise family Of products features energy-efficient power management, operational amplifiers, interface and data conversion products. For more information about National's PowerWise brand, visit: http:// .
About National Semiconductor:
National Semiconductor, the industrys premier analog company, creates high-value analog devices and subsystems. Nationals leading-edge products include power management circuits, display drivers, audio and operational amplifiers, interface products and data conversion solutions. Nationals key analog markets include wireless handsets Headquartered in Santa Clara, Calif., National reported sales of $1.93 billion for fiscal 2007, which ended May 27, 2007. Additional company and product information is available At http:// .
As the company's first multi-channel boost device, the CAT4106 is capable of driving as many as 40 white LEDs – or four strings of 10 LEDs with up to 36 volts (V) per string - for a total of 6 W of LED output power Additionally, the device enables designers to maximize backlighting efficiency and reduce space via its built-in diagnostics functions, which automatically adjust the output voltage to drive the highest forward voltage (Vf) string with the minimum head room voltage.
Typical application circuit with CAT4106.
The channel of the circuit and the short circuit LED will be detected And flagged on the FAULT logic output (active-low, open-drain). The device also provides thermal shutdown and overvoltage protection (OVP).
The CAT4106 features low dropout LED channels of 500 millivolts (mV) at 175 milliamps (mA) and a high-frequency pulse width modulation (PWM) interface, which supports multiple frequencies up to 2 kilohertz (kHz), providing precise, high-resolution Dimming control while the device remains automatic biased.
Features:
• Four matched output LED channels
• Integrated DC-DC boost converter
• Up to 6-watts LED total output power
• Low dropout LED channels, 500 mV at 175 mA
• High-frequency PWM interface, up to 2 kHz
• On-chip diagnostics with adjustable Short/Open LED detection
Packaging:
• 16-lead TQFN, 4 mm x 4 mm
• 16-Lead TSSOP, 4.4 mm, exposed thermal pad
Price and Availability:
The CAT4106 LED driver is available in a space-saving 4 mm x 4 mm 16-lead TQFN package and a 16-lead TSSOP package with an exposed thermal pad for enhanced power dissipation for $1.06 USD per unit in 10,000 unit quantities. Boards are available now. Projected lead-time for production quantities is currently 6 to 8 weeks ARO.
About ON Semiconductor:
With its global logistics network and strong product portfolio, ON Semiconductor is a preferred supplier of high performance, energy efficient, silicon solutions to customers in the power supply, automotive, communication, computer, consumer, medical, industrial, mobile phone, and military/ Aerospace markets. The company's broad portfolioves power management design problems in space- and energy-constrained applications from feature-rich handheld devices through large line-powered systems. From the novice power designer to the power expert, National's products, people and design tools enable Customers to design green-powered systems with complex power supplies in the shortest amount of time. High-performance products include switching regulators such as National's flagship SIMPLE SWITCHER® family, and application-specific products including white-LED drivers and Power-over-Ethernet Controllers. More information about National's power management products is available at http:// Al.com/power .
Availability and Pricing:
Available now, the LM3433 is priced at $2.25 each in 1,000-unit quantities.
About National's PowerWise Brand:
National's PowerWise brand reflects the company's energy-efficient product portfolio. It signifies products with outstanding performance-to-power at the component level, as well as products that provide an outstanding, energy-efficient solution when coupled with other National parts. National's PowerWise family Of products features energy-efficient power management, operational amplifiers, interface and data conversion products. For more information about National's PowerWise brand, visit: http:// .
About National Semiconductor:
National Semiconductor, the industrys premier analog company, creates high-value analog devices and subsystems. Nationals leading-edge products include power management circuits, display drivers, audio and operational amplifiers, interface products and data conversion solutions. Nationals key analog markets include wireless handsets Headquartered in Santa Clara, Calif., National reported sales of $1.93 billion for fiscal 2007, which ended May 27, 2007. Additional company and product information is available At http:// .
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