EVLVIP17-5WCHG STMicroelectronics, EVLVIP17-5WCHG Datasheet

BOARD EVAL FOR VIPER17

EVLVIP17-5WCHG

Manufacturer Part Number
EVLVIP17-5WCHG
Description
BOARD EVAL FOR VIPER17
Manufacturer
STMicroelectronics
Series
VIPer™ plusr
Datasheets

Specifications of EVLVIP17-5WCHG

Main Purpose
AC/DC, Primary and Secondary Side
Outputs And Type
1, Isolated
Power - Output
5W
Voltage - Output
5.1V
Current - Output
1A
Voltage - Input
90 ~ 264VAC
Regulator Topology
Flyback
Frequency - Switching
115kHz
Board Type
Fully Populated
Utilized Ic / Part
TSM1052, VIPer17
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-8250

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
EVLVIP17-5WCHG
Manufacturer:
ST
0
Features
Application
Table 1.
June 2010
VIPER17HDTR / VIPER17LDTR
800 V avalanche rugged power section
PWM operation with frequency jittering for low
EMI
Operating frequency:
– 60 kHz for L type
– 115 kHz for H type
Standby power < 50 mW at 265 Vac
Limiting current with adjustable set point
Adjustable and accurate overvoltage
protection
On-board soft-start
Safe auto-restart after a fault condition
Hysteretic thermal shutdown
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
VIPER17LN / VIPER17HN
VIPER17HD / VIPER17LD
Order codes
Device summary
Doc ID 14419 Rev 7
SO16 narrow
Package
DIP-7
Description
The device is an off-line converter with an 800 V
rugged power section, a PWM control, two levels
of over current protection, overvoltage and
overload protections, hysteretic thermal
protection, soft-start and safe auto-restart after
any fault condition removal. Burst mode operation
and device very low consumption help to meet the
standby energy saving regulations.
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.
Figure 1.
Off-line high voltage converters
DC input high voltage
wide range
+
-
DRAIN DRAIN
GND
SO16 narrow
VIPER17
VDD
SO-16
CONT
Typical topology
BR
FB
Tape and reel
Packaging
Tube
Tube
VIPER17
DIP-7
DC Output voltage
www.st.com
+
-
1/31
31

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EVLVIP17-5WCHG Summary of contents

Page 1

Features ■ 800 V avalanche rugged power section ■ PWM operation with frequency jittering for low EMI ■ Operating frequency: – 60 kHz for L type – 115 kHz for H type ■ Standby power < 265 ...

Page 2

Contents Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

VIPER17 1 Block diagram Figure 2. Block diagram BRth 15uA SOFT START CONT . OVP LOGIC 6uA OVP FB 2 Typical power Table 2. Typical power Part number Adapter VIPER17 1. Typical continuous power in non ...

Page 4

Pin settings 3 Pin settings Figure 3. Connection diagram (top view) Note: The copper area for heat dissipation has to be designed under the DRAIN pins. Table 3. Pin description Pin N. Name DIP-7 SO16 1 1...2 GND - 4 ...

Page 5

VIPER17 4 Electrical data 4.1 Maximum ratings Table 4. Absolute maximum ratings Pin Symbol (DIP7 DRAIN DRAIN V 3 CONT ...

Page 6

Electrical data 4.3 Electrical characteristics (T = -25 to 125 ° Table 6. Power section Symbol Parameter V Break-down voltage BVDSS I OFF state drain current OFF R Drain-source on state resistance DS(on) Effective (energy related) output C ...

Page 7

VIPER17 Table 8. Controller section Symbol Parameter Feed-back pin V Overload shut down threshold FBolp V Linear dynamics upper limit FBlin V Burst mode threshold FBbm V Burst mode hysteresis FBbmhys I Feed-back sourced current FB R Dynamic resistance FB(DYN) ...

Page 8

Electrical data Table 8. Controller section (continued) Symbol Parameter nd Overcurrent protection (2 OCP) I Second over current threshold DMAX Overvoltage protection V Overvoltage protection threshold OVP T Overvoltage protection strobe time STROBE Brown out protection V Brown out threshold ...

Page 9

VIPER17 Figure 4. Minimum turn-on time test circuit 14 V Figure 5. Brown out threshold test circuit 14 V Figure 6. OVP threshold test circuit 14 V Note: Adjust V above V DD GND DRAIN VDD DRAIN 50 Ω CONT ...

Page 10

Typical electrical characteristics 5 Typical electrical characteristics Figure 7. Current limit vs T Figure 9. Drain start voltage vs T Figure 11. Brown out threshold vs T 10/31 Figure 8. Switching frequency Figure 10. HFB vs T ...

Page 11

VIPER17 Figure 13. Brown out hysteresis current vs T Figure 15. Operating supply current (switching Figure 17. Power MOSFET on-resistance vs T Figure 14. Operating supply current J Figure 16. current limit Figure 18. Power ...

Page 12

Typical electrical characteristics Figure 19. Thermal shutdown DDon V DDoff V DD(RESTART) I DRAIN HYST SD Normal operation 12/31 Shut down after over temperature Doc ID 14419 Rev 7 VIPER17 ...

Page 13

VIPER17 6 Typical circuit Figure 20. Min-features flyback application Figure 21. Full-features flyback application Vcc DRAIN CONTROL CONT FB ...

Page 14

Operation descriptions 7 Operation descriptions VIPER17 is a high-performance low-voltage PWM controller chip with an 800 V, avalanche rugged power section. The controller includes: the oscillator with jittering feature, the start up circuits with soft-start feature, the PWM logic, the ...

Page 15

VIPER17 7.3 Power-up and soft-start up If the input voltage rises up till the device start threshold, V begins to grow due to the I high voltage start up circuit. If the V page 6) the power MOSFET starts switching ...

Page 16

Operation descriptions Figure 23. Timing diagram: normal power-up and power-down sequences DRAIN_START DDon V DDoff V DD(RESTART) V DRAIN (3mA) DDch Figure 24. Soft-start: timing diagram 16/31 Normal operation Power-on I ...

Page 17

VIPER17 7.4 Power down operation At converter power down, the system loses regulation as soon as the input voltage is so low that the peak current limitation is reached. The V the V threshold (see DDoff energy transfers to the ...

Page 18

Operation descriptions 7.6 Oscillator The switching frequency is internally fixed to 60 kHz or 115 kHz. In both case the switching frequency is modulated by approximately ±4 kHz (60 kHz version) or ±8 kHz (115 kHz version) at 250 Hz ...

Page 19

VIPER17 Equation 3 Where: ● the OVP threshold (see OVP ● the converter output voltage value to activate the OVP (set by designer) OUT OVP ● the auxiliary winding turns AUX ● ...

Page 20

Operation descriptions 7.9 About CONT pin Referring to the Figure 1. Current Limit set point 2. Over voltage protection on the converter output voltage The Table 9 on page 20 activate one or plus of the CONT pin functions. Figure ...

Page 21

VIPER17 When the feedback pin voltage reaches the threshold V starts to charge the feedback capacitor (C threshold, the converter is turned off and the start up phase is activated with reduced V FBolp value 0.6 mA. ...

Page 22

Operation descriptions Equation 7 Equation 8 The R is the dynamic resistance seen by the FB pin. FB(DYN) The C capacitor fixes the OLP delay and usually C FB1 The Equation 5 can be still used to calculate the OLP ...

Page 23

VIPER17 7.11 Burst-mode operation at no load or very light load When the load decrease the feedback loop reacts lowering the feedback pin voltage falls down the burst mode threshold, V switched on. After the MOSFET stops, as ...

Page 24

Operation descriptions Figure 31. Brown-out protection: BR external setting and timing diagram DIS BRth I BRhyst Rl Fixed the V and the V INon can be established for the calculation of the resistors R ...

Page 25

VIPER17 nd 7.13 2 level overcurrent protection and hiccup mode The VIPER17 is protected against short circuit of the secondary rectifier, short circuit on the secondary winding or a hard-saturation of fly-back transformer. Such as anomalous condition is invoked when ...

Page 26

Package mechanical data 8 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available ...

Page 27

VIPER17 Figure 33. Package dimensions Doc ID 14419 Rev 7 Package mechanical data 27/31 ...

Page 28

Package mechanical data Table 11. SO16 narrow mechanical data Ref ccc 28/31 Dimensions Databook (mm.) Min Typ. 0.1 1.25 0.31 0.17 9.8 9.9 5.8 6 3.8 3.9 1.27 ...

Page 29

VIPER17 Figure 34. Package dimensions Doc ID 14419 Rev 7 Package mechanical data 29/31 ...

Page 30

Revision history 9 Revision history Table 12. Document revision history Date 14-Feb-2008 19-Feb-2008 21-Jul-2008 30-Sep-2008 16-Jan-2009 20-Jul-2009 14-Jun-2010 30/31 Revision 1 Initial release 2 Updated: Figure 1 on page 3 Added new SO16 package 4 Updated Equation 9, 5 Updated ...

Page 31

... VIPER17 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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