|
E-L6561D013TR Datasheet, PDF (1/13 Pages) STMicroelectronics – POWER FACTOR CORRECTOR | |||
|
L6561
POWER FACTOR CORRECTOR
1 FEATURES
â VERY PRECISE ADJUSTABLE OUTPUT
OVERVOLTAGE PROTECTION
â MICRO POWER START-UP CURRENT (50µA
TYP.)
â VERY LOW OPERATING SUPPLY
CURRENT(4mA TYP.)
â INTERNAL START-UP TIMER
â CURRENT SENSE FILTER ON CHIP
â DISABLE FUNCTION
â 1% PRECISION (@ Tj = 25°C) INTERNAL
REFERENCE VOLTAGE
â TRANSITION MODE OPERATION
â TOTEM POLE OUTPUT CURRENT: ±400mA
â 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.
Figure 1. Packages
DIP-8
Table 1. Order Codes
Part Number
L6561
L6561D
L6561D013TR
SO-8
Package
DIP-8
SO-8
Tape & Reel
Realised in mixed BCD technology, the chip gives
the following benefits:
â micro power start up current
â 1% precision internal reference voltage
â (Tj = 25°C)
â Soft Output Over Voltage Protection
â no need for external low pass filter on the cur-
rent sense
â 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.
Figure 2. Block Diagram
1
INV
-
2.5V
+
COMP
2
MULT
3
MULTIPLIER
CS
4
40K
VOLTAGE
REGULATOR
OVER-VOLTAGE
DETECTION
-+
5pF
8
VCC
20V
R2
INTERNAL
SUPPLY 7V
R1
+
-
VREF2
2.1V
1.6V
UVLO
RQ
S
DRIVER
ZERO CURRENT
+ DETECTOR
-
STARTER
VCC
7
GD
June 2004
6
GND
5
ZCD
DISABLE
D97IN547E
REV. 16
1/13
|
▷ |