VIPER06XN STMicroelectronics, VIPER06XN Datasheet - Page 15

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VIPER06XN

Manufacturer Part Number
VIPER06XN
Description
AC/DC Switching Converters VIPer 800V Plus Fixed Freq 30kHz
Manufacturer
STMicroelectronics
Type
PWM Low-Standby High Performance Controllerr
Datasheet

Specifications of VIPER06XN

Rohs
yes
Output Voltage
800 V
Input / Supply Voltage (max)
23.5 V
Input / Supply Voltage (min)
11.5 V
Switching Frequency
30 kHz
Supply Current
1.3 mA
Operating Temperature Range
- 40 C to + 150 C
Mounting Style
Through Hole
Package / Case
DIP-7
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 25 C
Number Of Outputs
1
Output Power
30 mW
Factory Pack Quantity
50

Available stocks

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Part Number:
VIPER06XN
Manufacturer:
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VIPER06
7
8
Power section
The power section is implemented with an N-channel power MOSFET with a breakdown
voltage of 800 V min. and a typical R
virtually lossless current sensing and the thermal sensor.
The gate driver of the power MOSFET is designed to supply a controlled gate current during
both turn-ON and turn-OFF in order to minimize common-mode EMI. During UVLO
conditions, an internal pull-down circuit holds the gate low in order to ensure that the power
MOSFET cannot be turned ON accidentally.
High voltage current generator
The high-voltage current generator is supplied by the DRAIN pin. At the first startup of the
converter it is enabled when the voltage across the input bulk capacitor reaches the
V
voltage reaches the V
voltage current generator is turned OFF. The VIPER06 is powered by the energy stored in
the V
In a steady-state condition, if the self-biasing function is used, the high-voltage current
generator is activated between V
I
Figure
The device can also be supplied through the auxiliary winding in which case the high-
voltage current source is disabled during steady-state operation, provided that VDD is
above V
At converter power-down, the V
below the V
Figure 21. Power-on and power-off
DDch2
DRAIN_START
DD
, see
V
21).
DRAIN_START
DDCSon
capacitor.
V
V
DDCSon
V
V
DRAIN
I
I
DDoff
DDch2
V
DDon
DDch1
V
I
Table 6 on page 7
DDoff
DD
DD
IN
threshold, sourcing a I
.
threshold (see
Power-on
DDon
Without internal self-supply
With internal self-supply
threshold, the power section starts switching and the high-
Doc ID 022794 Rev 1
to the V
DD
Table 6 on page
DDCSon
voltage drops and the converter activity stops as it falls
DS(on)
DDch1
DD
and V
capacitor during the MOSFET off-time (see
of 32 Ω . It includes a SenseFET structure to allow
current (see
Normal operation
DDon
7).
(see
Table 6 on page
Table 6 on page
regulation is lost here
Power-off
V
HV startup is no more activated
IN
< V
7). As the V
DRAIN_START
7), delivering
Power section
t
t
t
t t
t
DD
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