VIPERA16HD STMicroelectronics, VIPERA16HD Datasheet
VIPERA16HD
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VIPERA16HD Summary of contents
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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 ■ No need of auxiliary winding for low ...
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Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Block diagram Figure 2. Block diagram 2 Typical power Table 2. Typical power Part number VIPER16 1. Typical continuous power in non ventilated enclosed adapter measured Maximum practical continuous power in an open frame design at ...
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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. DIP-7 SO16 1 1 ...
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Electrical data 4.1 Maximum ratings Table 4. Absolute maximum ratings Pin Symbol (DIP- Drain-to-source (ground) voltage DRAIN Repetitive avalanche energy (limited Repetitive avalanche current (limited by T ...
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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) C Effective (energy related) output capacitance V ...
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Table 8. Controller section Symbol Parameter Error amplifier V FB reference voltage REF_FB I Current pull up FB_PULL UP G Trans conductance M Current setting (LIM) pin V Low level clamp voltage LIM_LOW Compensation (COMP) pin V Upper saturation limit ...
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Typical electrical characteristics Figure 4. IDlim Figure DRAIN_START Figure 8/25 Figure 5. Figure 7. J Figure 9. Doc ID 15232 Rev OSC ...
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Figure 10 COMP J Figure 12. Operating supply current (switching Figure 14. Power MOSFET on-resistance vs T Figure 11. Operating supply current (no switching Figure 13. IDlim vs R Figure 15. Power ...
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Figure 16. Thermal shutdown DDon V DDCSon V DDoff I DRAIN HYST Normal operation 10/25 Shut down after over temperature Doc ID 15232 Rev 5 time time time Normal ...
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Typical circuit Figure 17. Buck converter Figure 18. Buck boost converter Doc ID 15232 Rev 5 11/25 ...
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Figure 19. Flyback converter (primary regulation) Figure 20. Flyback converter (non isolated) 12/25 Doc ID 15232 Rev 5 ...
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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 allow a virtually lossless current sensing and the thermal sensor. The gate driver of the ...
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Oscillator The switching frequency is internally fixed at 60 kHz (part number VIPER16LN or LD) or 115 kHz (part number VIPER16HN or HD). In both cases the switching frequency is modulated by approximately ±4 kHz (60 kHz version) or ...
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FB pin and COMP pin The device can be used both in non-isolated and in isolated topology. In case of non- isolated topology, the feedback signal from the output voltage is applied directly to the FB pin as inverting ...
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Figure 23. COMP pin voltage versus I 13 Burst mode When the voltage V OFF state and the consumption is reduced to I page 6. As reaction at the energy delivery stop, the exceeds the threshold V ...
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Automatic auto restart after overload or short-circuit The overload protection is implemented in automatic way using the integrated up-down counter. Every cycle incremented or decremented depending if the current logic detects the limit condition or not. The ...
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Open loop failure protection In case the power supply is built in fly-back topology and the VIPer16 is supplied by an auxiliary winding, as shown in converter is protected against feedback loop failure or accidental disconnections of the winding. ...
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Figure 28. FB pin connection for isolated fly-back C VDD V REF R COMP SW BUS Disabled REF_FB COMP C COMP Doc ID 15232 Rev AUX AUX V COMPL + PWM stop ...
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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 at: www.st.com. ® ...
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Figure 29. DIP-7 package dimensions Doc ID 15232 Rev 5 21/25 ...
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Table 10. SO16N mechanical data Dim ccc 22/25 mm Min Typ 0.1 1.25 0.31 0.17 9.8 9.9 5.8 6 3.8 3.9 1.27 0.25 0.4 0 Doc ID 15232 ...
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Figure 30. SO16N Package dimensions Doc ID 15232 Rev 5 23/25 ...
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Revision history s Table 11. Document revision history Date 21-Jan-2009 07-Dec-2009 14-May-2010 26-Aug-2010 10-Oct-2011 24/25 Revision 1 Initial release 2 Updated Figure 7 on page 8 3 Updated Figure 3 on page 4 Updated Table 3 on page 4 ...
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... 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. ...