TEA1532CT/N1,118 Datasheet

Switching Converters, Regulators & Controllers


TEA1532CT/N1,118 The GreenChip II is the second generation of controller ICs intended for green yback Switched Mode Power Supplies (SMPS). Its high level of integration allows the design of a cost effective power supply with a very low number of external components. The TEA1532CT/N1,118can also be used in xed frequency, Continuous Conduction Mode (CCM) converter designs for low voltage and high current applications. At low power (standby) levels the system operates in cycle skipping mode which minimizes the switching losses during standby. The special built-in green functions allow the efciency to be optimum at all power levels. This holds for quasi-resonant operation at high power levels, as well as xed frequency operation with valley switching at medium power levels. At low power (standby) levels, the system operates in cycle skipping mode with valley detection. The proprietary high voltage BCD800 process makes direct start-up possible from the rectied universal mains voltage in an effective and energy efcient way. A second low voltage, Bipolar CMOS (BICMOS) IC is used for accurate, high speed protection functions and control. The TEA1532CT/N1,118 enables highly efcient and reliable supplies to be designed easily. TEA1532CT/N1,118 Features • Safe restart mode for system fault conditions• Zero current switch-on in QR mode• IC OverTemperature Protection (OTP) (latched)• Low and adjustable OverCurrent Protection (OCP) trip level• Soft (re)start• Mains voltage-dependent operation-enabling level• TEA1532CT: general purpose input for latched or safe restart protection and timing, e.g. to be used for OverVoltage Protection (OVP), output short-circuit protection or system OTP• TEA1532BT: general purpose input for latched protection and timing, e.g. to be used for OVP, output short-circuit protection or system OTP• Brown-out protection TEA1532CT/N1,118 Applications • Adapters and open frame yback power supplies. The device can also be used in all applications that demand an efcient and cost-effective solution up to 250 W.


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