L6566B STMicroelectronics, L6566B Datasheet - Page 41

• Manufacturer Part Number: L6566B
• Description: IC CTRLR OVP OTP UVLO HV 16SOIC
• Manufacturer: STMicroelectronics

Specifications of L6566B

• Output Isolation: Isolated
• Frequency Range: 10 ~ 300kHz
• Voltage - Input: 8 ~ 23 V
• Power (watts): 750mW
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Output Current: 800 mA
• Output Power: 750 mW
• Input Voltage: 8 V to 23 V
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: SMD/SMT
• Duty Cycle (max): 75 %
• Selectable Multi-mode Operation: fixed frequency or quasi-resonant
• For Use With: 497-6452 - 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

L6566B
5.14
Table 5.
Feature Description
mode
Burst
operation for
consumptio
Controlled
low power
ON-OFF
n at light
Summary of L6566B 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 and protection functions. 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.
L6566B light load management features
load
V
V
Caused
COMPBM
COMP
- Hys
by
<
behavior
operation
skipping
Pulse
IC
Vcc_restart
N.A.
(V)
Consump.
(Iqdis,mA)
1.34 mA
VREF
(V)
5
unchanged
SS
Application information
V
V
VCOMP
-HYS
COMPBM
COMPBM
(V)
to
OSC
0/1
(V)
41/51
FMOD
0