VIPER06LS STMicroelectronics, VIPER06LS Datasheet - Page 18

• Manufacturer Part Number: VIPER06LS
• Description: AC/DC Switching Converters Fixed VIPer Plus 800V 60kHz 30mW
• Manufacturer: STMicroelectronics

Specifications of VIPER06LS

• Product Category: AC/DC Switching Converters
• Rohs: yes

Burst mode
13
18/28
Figure 23. COMP pin voltage versus I
Burst mode
When the voltage V
the OFF state and the consumption is reduced to the I
page
exceeds the threshold V
level of consumption equal to the I
“burst mode” and shown in
go down even to a few hundreds hertz, thus minimizing all frequency-related losses and
making it easier to comply with energy-saving regulations. During burst mode, the drain
current limit is reduced to the value I
audible noise issue.
Figure 24. Load-dependent operating modes: timing waveforms
7. In reaction to the loss of energy, the V
V
COMPL
+V
COMPL_HYS
I
V
V
Dlim_bm
I
COMP
COMPL
DRAIN
I
I
I
DD1
DD0
DD
COMP
I
DRAIN
COMPL
I
Dlim_bm
drops below the threshold, V
Figure 24 on page
I
Dlim
Doc ID 022794 Rev 1
+ V
V
DD1
COMPL
COMPL_HYS
Dlim_bm
current. This ON-OFF operation mode, referred to as
DRAIN
(given
18, reduces the average frequency, which can
, the converter starts switching again with a
COMP
Burst Mode
inTable 7 on page
voltage increases and as soon as it
V
DD0
COMPH
COMPL
current, as reported on
, the power MOSFET is kept in
V
COMP
8) in order to avoid the
time
time
Table 6 on
time
VIPER06
AM01095v1