EA1530AT Datasheet | NXP Semiconductors

TEA1530AT Green Chip™II SMPS control IC Rev. 01 - 18 May 2005 .. Objective data sheet 1. General description The Green Chip™II is the second generation of green Switched Mode Power Supply (SMPS) controller ICs. Its high level of integration allows the design of a cost effective power supply with a very low number of external ponents. The TEA1530AT can be used in Fixed Frequency converter designs for low voltage, high current applications. At low power (standby) levels, the system operates in cycle skipping mode which minimizes the switching losses during standby. The proprietary high voltage BCD800 process makes direct start-up possible from the rectified universal mains voltage in an effective and green way. A second low voltage BICMOS IC is used for accurate, high speed protection functions and control. The TEA1530AT enables highly efficient and reliable supplies to be designed easily. 2. Features 2.1 Distinctive Features s Universal mains supply operation (70 V to 276 V AC) s High level of integration, resulting in a very low external ponent count s Fixed frequency operation 2.2 Green Features s Cycle skipping mode at very low loads; input power < 300 m W at no-load operation for a typical adapter application s On-chip start-up current source. 2.3 Protection Features s s s s s s s Safe restart mode for system fault conditions Undervoltage protection (foldback during overload) IC Over Temperature Protection (OTP) (latched) Low and adjustable Over Current Protection (OCP) trip level Soft (re)start Mains voltage-dependent operation-enabling level 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. Philips Semiconductors TEA1530AT .. Green Chip™II SMPS control IC 3. Applications s Printer & LCD adapters / chargers / supplies. The device can however also be used in all applications that demand an efficient and...