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PDF VIPER17 Data sheet ( Hoja de datos )
| Número de pieza | VIPER17 | |
| Descripción | Energy saving VIPerPlus: HV switching regulator | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de VIPER17 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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VIPER17
Energy saving VIPerPlus: HV switching regulator for flyback
converter
Datasheet - production data
• On-board soft-start
• Safe auto-restart after a fault condition
• Hysteresis thermal shutdown
SO16 narrow
SO-16
DIP-7
Figure 1. Typical topology
+
DC input high voltage
wide range
-
+
DC Output voltage
-
Applications
• Adapters for PDA, camcorders, shavers,
cellular phones, videogames
• Auxiliary power supply for LCD/PDP TV,
monitors, audio systems, computer, industrial
systems, LED driver, No el-cap LED driver
• SMPS for set-top boxes, DVD players and
recorders, white goods
DRAIN DRAIN
BR
VIPER17
Description
GND VDD CONT FB
Features
• 800 V avalanche rugged power section
The device is an off-line converter with an 800 V
rugged power section, a PWM control, two levels
of overcurrent protection, overvoltage and
overload protections, hysteresis thermal
protection, soft-start and safe auto-restart after
any fault condition removal. The burst mode
operation and the device’s very low consumption
meet the standby energy saving regulations.
• PWM operation with frequency jittering for low
EMI
• Operating frequency:
– 60 kHz for L type
– 115 kHz for H type
• Standby power < 30 mW at 265 Vac
Advance frequency jittering reduces EMI filter
cost. Brown-out function protects the switch mode
power supply when the rectified input voltage
level is below the normal minimum level specified
for the system. The high voltage start-up circuit is
embedded in the device.
• Limiting current with adjustable set point
• Adjustable and accurate overvoltage
protection
Table 1. Device summary
Order codes
Package
Packaging
VIPER17LN / VIPER17HN
VIPER17HD / VIPER17LD
VIPER17HDTR / VIPER17LDTR
DIP-7
SO16 narrow
Tube
Tube
Tape and reel
May 2014
This is information on a product in full production.
DocID14419 Rev 10
1/33
www.st.com
1 page  
VIPER17
Pin settings
Table 3. Pin description (continued)
Pin N.
DIP-7 SO16
Name
Function
Brownout protection input with hysteresis. A voltage below the
threshold VBRth shuts down (not latch) the device and lowers the
5 10 BR power consumption. Device operation restarts as the voltage exceeds
the threshold VBRth + VBRhyst.
It can be connected to ground when not used.
High voltage drain pin. The built-in high voltage switched start-up bias
7,8 13...16 DRAIN current is drawn from this pin too. Pins connected to the metal frame
to facilitate heat dissipation.
DocID14419 Rev 10
5/33
33
5 Page 
VIPER17
Typical electrical characteristics
5 Typical electrical characteristics
Figure 7. Current limit vs TJ
Figure 8. Switching frequency vs TJ
Figure 9. Drain start voltage vs TJ
Figure 10. HFB vs TJ
Figure 11. Brown out threshold vs TJ
Figure 12. Brown out hysteresis vs TJ
DocID14419 Rev 10
11/33
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11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet VIPER17.PDF ] | |
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