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E-L6561D013TR 데이터시트(PDF) 1 Page - STMicroelectronics |
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1 / 13 page 1/13 L6561 June 2004 1 FEATURES ■ VERY PRECISE ADJUSTABLE OUTPUT OVERVOLTAGE PROTECTION ■ MICRO POWER START-UP CURRENT (50 µA TYP.) ■ VERY LOW OPERATING SUPPLY CURRENT(4mA TYP.) ■ INTERNAL START-UP TIMER ■ CURRENT SENSE FILTER ON CHIP ■ DISABLE FUNCTION ■ 1% PRECISION (@ Tj = 25°C) INTERNAL REFERENCE VOLTAGE ■ TRANSITION MODE OPERATION ■ TOTEM POLE OUTPUT CURRENT: ±400mA ■ DIP-8/SO-8 PACKAGES 2 DESCRIPTION L6561 is the improved version of the L6560 stan- dard Power Factor Corrector. Fully compatible with the standard version, it has a superior perfor- mant multiplier making the device capable of work- ing 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. POWER FACTOR CORRECTOR Figure 2. Block Diagram MULTIPLIER VREF2 OVER-VOLTAGE DETECTION VOLTAGE REGULATOR UVLO INTERNAL SUPPLY 7V + - 2.5V R1 R2 R S Q + - DRIVER STARTER + - ZERO CURRENT DETECTOR DISABLE 2.1V 1.6V VCC 8 1 23 4 ZCD VCC INV COMP MULT CS GD 7 5 GND 6 D97IN547E 20V 40K 5pF REV. 16 Figure 1. Packages Table 1. Order Codes Part Number Package L6561 DIP-8 L6561D SO-8 L6561D013TR Tape & Reel DIP-8 SO-8 |
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