STMicroelectronics L6561 Manuals

L6561 is the improved version of the L6560 standard Power Factor Corrector. Fully compatible with the standard version, it has a superior performant multiplier making the device capable of working in wide input voltage range applications (from 85V to 265V) with an excellent THD. Furthermore the start up current has been reduced at few tens of µA and a disable function has been implemented on the ZCD pin, guaranteeing lower current consumption in stand by mode. Realised in mixed BCD technology,the chip gives the following benefits: micro power start up current, 1% precision internal reference voltage (Tj = 25°C), Soft Output Over Voltage Protection, no need for external low pass filter on the current sense, very low operating quiescent current minimises power dissipation. The totem pole output stage is capable of driving a Power MOS or IGBT with source and sink currents of +/- 400mA. The device is operating in transition mode and it is optimised for Electronic Lamp Ballast application, AC-DC adaptors and SMPS.

This document introduces the characteristics of the L6561 product, including micro power start-up current, very low operating current, internal start-up timer, current sense filter on chip, disable function, 1% precision internal reference voltage, transition mode operation, symmetric output current.

L6561 is the improved version of the L6560 standard Power Factor Corrector. It has a superior performance multiplier, making the device capable of working in wide input voltage range applications (from 85V to 265V) with an excellent THD. Furthermore the start up current has been reduced at few tens of mA and a disable function has been implement- ed on the ZCD pin, guaranteeing lower current consumption in stand by mode. Realised in mixed BCD technology, the chip gives the following benefits: – micro power start up current – 1% precision internal reference voltage – (Tj = 25°C) – Soft Output Over Voltage Protection – no need for external low pass filter on the cur- rent sense – very low operating quiescent current minimis- es power dissipation

L6561 is the improved version of the L6560 standard Power Factor Corrector. Fully compatible with the standard version, it has a superior performing multiplier making the device capable of working in wide input voltage range applications (from 85V to 265V) with an excellent THD. Furthermore the start up current has been reduced at few tens of mA and a disable function has been implement- ed on the ZCD pin, guaranteeing lower current consumption in stand by mode. Realised in mixed BCD technology, the chip gives the following benefits: – micro power start up current – 1% precision internal reference voltage – (Tj = 25°C) – Soft Output Over Voltage Protection – no need for external low pass filter on the cur- rent sense – very low operating quiescent current minimis- es power dissipation The totem pole output stage is capable of driving a Power MOS or IGBT with source and sink cur- rents of ±400mA. The device is operating in tran- sition mode and it is optimised for Electronic Lamp Ballast application, AC-DC adaptors and SMPS.