VIPER06XN

Manufacturer Part NumberVIPER06XN
DescriptionAC/DC Switching Converters VIPer 800V Plus Fixed Freq 30kHz
ManufacturerSTMicroelectronics
TypePWM Low-Standby High Performance Controller
VIPER06XN datasheet
 


Specifications of VIPER06XN

RohsyesOutput Voltage800 V
Input / Supply Voltage (max)23.5 VInput / Supply Voltage (min)11.5 V
Switching Frequency30 kHzSupply Current1.3 mA
Operating Temperature Range- 40 C to + 150 CMounting StyleThrough Hole
Package / CaseDIP-7Maximum Operating Temperature+ 125 C
Minimum Operating Temperature- 25 CNumber Of Outputs1
Output Power30 mWFactory Pack Quantity50
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VIPER06
14
Automatic auto-restart after overload or short-circuit
The overload protection is implemented automatically using the integrated up-down counter.
Every cycle, it is incremented or decremented depending upon the current logic detection of
the limit condition or not. The limit condition is the peak drain current, I
on page 8
or the one set by the user through the R
page
11. After the reset of the counter, if the peak drain current is continuously equal to the
level I
, the counter will be incremented until the fixed time, t
Dlim
MOSFET switch ON will be disabled. It will be activated again through the soft-start after the
t
time (see
RESTART
Table 7 on page
8.
For overload or short-circuit events, the power MOSFET switching will be stopped after a
period of time dependent upon the counter with a maximum equal to t
sequence continues until the overload condition is removed, see
This protection ensures a low repetition rate of restart attempts of the converter, so that it
works safely with extremely low power throughput and avoids overheating the IC in case of
repeated overload events. If the overload is removed before the protection tripping, the
counter will be decremented cycle-by-cycle down to zero and the IC will not be stopped.
Figure 25. Timing diagram: OLP sequence (IC externally biased)
SHORT CIRCUIT
V
OCCURS HERE
DD
V
DDon
V
DDCSon
I
DRAIN
I
Dlim_bm
*
t
1
* The time t
Figure 26. Timing diagram: OLP sequence (IC internally biased)
SHORT CIRCUIT
V
OCCURS HERE
DD
V
DDon
V
DDCSon
I
DRAIN
I
Dlim_bm
* The time t
Automatic auto-restart after overload or short-circuit
Figure 25
and
Figure 26 on page
t
OVL
t
t
RESTART
RESTART
t
SS
can be lower or equal to the time t
1
OVL
t
OVL
*
t
t
t
1
RESTART
RESTART
t
SS
can be lower than or equal to the time t
1
OVL
Doc ID 022794 Rev 1
given in
Dlim ,
resistor, shown in
Figure 13 on
LIM
, at which point the power
OVL
19) and the time values mentioned in
. The protection
OVL
Figure 25
and
Figure
SHORT CIRCUIT
REMOVED HERE
t
OVL
t
RESTART
t
t
SS
SS
SHORT CIRCUIT
REMOVED HERE
time
t
OVL
t
RESTART
t
t
SS
SS
Table 7
26.
time
time
time
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