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PDF L6561 Data sheet ( Hoja de datos )
| Número de pieza | L6561 | |
| Descripción | POWER FACTOR CORRECTOR | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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L6561
POWER FACTOR CORRECTOR
1 FEATURES
■ VERY PRECISE ADJUSTABLE OUTPUT
OVERVOLTAGE PROTECTION
■ MICRO POWER START-UP CURRENT (50µA
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.
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:
– 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.
Figure 2. Block Diagram
1
INV
-
2.5V
+
COMP
2
MULT
3
MULTIPLIER
CS
4
40K
VOLTAGE
REGULATOR
OVER-VOLTAGE
DETECTION
-+
5pF
VCC
8
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
1 page  
L6561
dently from the average output voltage. The precision in setting the overvoltage threshold is 7% of the ov-
ervoltage value (for instance ∆V = 60V ± 4.2V).
3.1 Disable function
The zero current detector (ZCD) pin can be used for device disabling as well. By grounding the ZCD volt-
age the device is disabled reducing the supply current consumption at 1.4mA typical (@ 14.5V supply volt-
age).
Releasing the ZCD pin the internal start-up timer will restart the device.
Figure 4.
OVER VOLTAGE
VOUT nominal
40µA
ISC 10µA
E/A OUTPUT
2.25V
DYNAMIC OVP
STATIC OVP
Figure 5. Overvoltage Protection Circuit
+Vo
R1
R2
Ccomp.
1
2.5V
-
E/A
+
∆I
∆I
2
-
+
2.25V
D97IN591
40µA
D97IN592A
X PWM DRIVER
5/13
5 Page 
Figure 19. SO-8 Mechanical Data & Package Dimensions
DIM.
MIN.
mm
TYP.
MAX. MIN.
inch
TYP. MAX.
A 1.35
1.75 0.053
0.069
A1 0.10
0.25 0.004
0.010
A2 1.10
1.65 0.043
0.065
B 0.33
0.51 0.013
0.020
C 0.19
0.25 0.007
0.010
D (1) 4.80
5.00 0.189
0.197
E 3.80
4.00 0.15
0.157
e 1.27
0.050
H 5.80
6.20 0.228
0.244
h 0.25
0.50 0.010
0.020
L 0.40
1.27 0.016
0.050
k 0˚ (min.), 8˚ (max.)
ddd 0.10 0.004
Note:
(1) Dimensions D does not include mold flash, protru-
sions or gate burrs.
Mold flash, potrusions or gate burrs shall not exceed
0.15mm (.006inch) in total (both side).
OUTLINE AND
MECHANICAL DATA
SO-8
L6561
0016023 C
11/13
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet L6561.PDF ] | |
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