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E-L6561| Datasheet

By datasheet - April 3rd, 2008

E-L6561, L6561, L6561D, L6561D013TR

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L6561
POWER FACTOR CORRECTOR
1

FEATURES
VERY PRECISE ADJUSTABLE OUTPUT OVERVOLTAGE PROTECTION MICRO POWER START-UP CURRENT (50uA 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

Figure 1. Packages

DIP-8

SO-8

Table 1. Order Codes
Part Number L6561 L6561D L6561D013TR Package DIP-8 SO-8 Tape & Reel

2

DESCRIPTION

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 mA and a disable function has been implemented on the ZCD pin, guaranteeing lower current consumption in stand by mode. Figure 2. Block Diagram
COMP 2 INV 1 2.5V +

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.

MULT 3 4 40K

CS

MULTIPLIER

VOLTAGE REGULATOR

OVER-VOLTAGE DETECTION

-

+

5pF

VCC

8

VCC INTERNAL SUPPLY 7V R1 + UVLO R S DRIVER Q 7

20V

GD

R2

VREF2 2.1V 1.6V ZERO CURRENT DETECTOR STARTER

6 GND

June 2004

+ DISABLE 5 ZCD
D97IN547E

REV. 16 1/13


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