L6566ATR STMicroelectronics, L6566ATR Datasheet - Page 45

• Manufacturer Part Number: L6566ATR
• Description: IC CTRLR OVP UVLO 16SOIC
• Manufacturer: STMicroelectronics

Specifications of L6566ATR

• Output Isolation: Isolated
• Frequency Range: 93 ~ 107kHz
• Voltage - Input: 8 ~ 23 V
• Power (watts): 750mW
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• For Use With: 497-8834 - BOARD DEMO FOR L6563/LL6566A497-6452 - BOARD EVAL FOR L6566B497-6451 - BOARD EVAL FOR L6566B497-6450 - BOARD EVAL FOR L6566B497-6449 - BOARD EVAL FOR L6566A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-6296-2

L6566A
Table 7.
Figure 30. Typical full-feature application schematic (FF operation)
OCP auto-restart
R15
R13
OCP latched
R12
PFC controller
to Vcc pin of
PFC Pre-regulator Output bus
VFF
DIS
NTC2
15
8
Vcc_PFC
C4
External circuits that determine IC behavior upon OVP and OCP
10
C1
VREF
6
R6
v oltage sensing
Output capacitor of boost
13
OSC
to mains
PFC Pre-regulator
C5
L6566A
R
R
R
R
AC_OK
14
IC1
H
L
H
SS
L
16
9
COMP
R
R
R
FF
FF
R
OVP latched
FF
C6
1
VFF
FF
VFF
HVS
needed if R
3
needed if R
GND
5
SS
15
15
14
SS
Vcc
14
11
12
L6566A
4
7
L6566A
1N4148
L
< 4.7 k Ω
ZCD
GD
CS
MODE/SC
L
< 4.7 k Ω
R16
10
VREF
10
VREF
C3
R18
D3 1N4148
R4
R2
D1
R1
R3
R17
1N4148
D2
C2
R5
Q1
R
R
H
R
L
R
Application examples and ideas
H
L
T1
AC_OK
OVP auto-restart
Diode needed if R
AC_OK
Diode needed if R
VFF
C8A,B
C7 2.2 nF Y1
D4
VFF
SS
16
15
14
SS
16
15
IC3 PC817A
14
4
3
1N4148
L6566A
TL431
L6566A
L
L
2
> 4.7 k Ω
> 4.7 k Ω
1
10
VREF
10
VREF
Vout
C9
R7
R8
45/51
R9
R10