VIPER06LSTR STMicroelectronics, VIPER06LSTR Datasheet - Page 18

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VIPER06LSTR

Manufacturer Part Number
VIPER06LSTR
Description
AC/DC Switching Converters VIPer 800V Plus Fixed Freq 60kHz
Manufacturer
STMicroelectronics
Type
PWM Low-Standby High Performance Controllerr
Datasheet

Specifications of VIPER06LSTR

Rohs
yes
Output Voltage
800 V
Input / Supply Voltage (max)
23.5 V
Input / Supply Voltage (min)
11.5 V
Switching Frequency
60 kHz
Supply Current
1.45 mA
Operating Temperature Range
- 40 C to + 150 C
Mounting Style
SMD/SMT
Package / Case
SSO-10
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 25 C
Number Of Outputs
1
Output Power
30 mW

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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

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