L6566ATR STMicroelectronics, L6566ATR Datasheet - Page 41

• 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
5.14
Table 5.
Feature Description
manage
mode
Burst
ment
PFC
at heavy load
consumption
light load, on
operation for
at light load
Controlled
low power
PFC off at
ON-OFF
Summary of L6566A power management functions
It has been seen that the device is provided with a number of power management functions:
multiple operating mode upon loading conditions, protection functions, as well as interaction
with the PFC pre-regulator. To help the designer familiarize with these functions, in the
following tables all of theme are summarized with their respective activation mechanism and
the resulting status of the most important pins. This can be useful not only for a correct use
of the IC but also for diagnostic purposes: especially at prototyping/debugging stage, it is
quite common to bump into unwanted activation of some function, and these tables can be
used as a sort of quick troubleshooting guide.
L6566A light load management features
V
Caused
V
V
V
V
V
COMPBM
COMP
COMP
COMP
COMPO
COMPL
- Hys
by
<
<
<
behavior
V
V
operation
skipping
CC_PFC
CC_PFC
Pulse
V
IC
0
CC
=
=
Vcc_restart
N.A.
N.A.
(V)
Consump.
(Iqdis,mA)
1.34mA
V
(V)
REF
5
5
unchanged
unchanged unchanged
SS
Application information
V
V
V
COMPBM-
COMPBM
HYS
COMP
(V)
to
OSC
(V)
0/1
1
FMOD
41/51
V
0
0
CC