SMPS Controller IC brings energy efficiency to netbook adapters.
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Press Release Summary:
Designed to optimize energy efficiency and standby performance of power supplies under 75 W, GreenChip TEA1733 is suitable for netbook adapters, printer adapters, and LCD monitor supplies. Switched Mode Power Supply controller IC enables standby power levels less than 100 mW. Featuring input voltage range of 12-30 V, device requires low start-up current of 10 µA and consumes 1.25 mA. It provides fixed switching frequency with frequency jitter to minimize EMI.
Original Press Release:
NXP's GreenChip Brings Energy Efficiency to Netbook Adapters
Eindhoven, Netherlands - NXP Semiconductors today announced the launch of GreenChip TEA1733(L) - a low-cost IC that increases energy efficiency and standby performance of power supplies under 75W. Designed specifically for low-power computing and communication applications such as netbook adapters, printer adapter and LCD monitor supplies, the TEA1733 is a Switched Mode Power Supply (SMPS) controller IC that enables standby power levels less than 100mW. The GreenChip TEA1733 is the first of a complete series of low-power AC/DC control ICs to be launched by NXP over the next year.
"With the demand for sleek, light and compact designs increasing by the day, the TEA1733 enables consumers to experience lighter and more compact netbook adapters that save money and consume less power," said Edwin Kluter, marketing director, power solutions, NXP Semiconductors. "The GreenChip TEA1733 enables new levels of energy efficiency in low-power applications. By reducing the number of external components needed, the TEA1733 allows OEMs to become more cost competitive while maintaining a high degree of quality and reliability."
To enable higher efficiencies at low standby mode and at all load levels, the TEA1733 requires a very low start-up current of 10µA and consumes a low supply current of 1.25mA. The combination of fixed frequency operation at high output power and frequency reduction at low output power provides high efficiency over the total load range. Due to its high level of integration, the TEA1733 enables a compact and lighter power supply design with reduced number of external components in the SMPS.
The TEA1733 is available in a safe restart protection version as TEA1733 and also in a latched protection version as TEA1733(L).
With almost 500 million GreenChips already sold, NXP Semiconductors is at the forefront of designing and manufacturing energy efficient solutions for the power supply industry. The GreenChip family makes it easier and more cost-effective for power supply manufacturers to comply with energy efficiency specifications such as 80PLUS® and ENERGY STAR®. The GreenChip family of ICs is designed specifically for energy saving and has, from its inception, led industry standards in PC power efficiency especially in notebook power efficiency.
Technical Information
Key features of the GreenChip TEA1733 SMPS controller IC for low-power applications include:
o Large input voltage range (12 V to 30 V)
o Low supply current during normal operation (typically 0.5 mA without load)
o Overpower or high/low line compensation
o Adjustable overpower time-out
o Adjustable overpower restart timer
o Fixed switching frequency with frequency jitter to reduce EMI
o Frequency reduction with fixed minimum peak current at low power operation to maintain high efficiency at low output power levels
o Slope compensation for CCM operation
o Low and adjustable OverCurrent Protection (OCP) trip level
o Adjustable soft start
o Two protection inputs (e.g. for input UVP and OVP, OTP and output OVP)
o IC overtemperature protection
Availability
The GreenChip TEA1733(L) is available immediately.
Further information is available at: www.nxp.com/pip/TEA1733T_TEA1733LT_1.html
About NXP Semiconductors
NXP Semiconductors provides High Performance Mixed Signal and Standard Product solutions that leverage its leading RF, Analog, Power, Digital Processing and manufacturing expertise. These innovations are used in a wide range of automotive, industrial, consumer, lighting, medical, computing and identification applications. Headquartered in Europe, the company has about 29,000 employees working in more than 30 countries and posted sales of USD 5.4 billion in 2008. News from NXP is located at www.nxp.com.
