VIPER16 STMicroelectronics, VIPER16 Datasheet
VIPER16
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VIPER16 Summary of contents
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... LED drivers Table 1. Device summary Order codes VIPER16LN VIPER16HN VIPER16HD VIPER16HDTR VIPER16LD VIPER16LDTR October 2011 Fixed frequency VIPer SO16 narrow SO-16 Description The device is an off-line converter with an 800 V avalanche ruggedness power section, a PWM controller, user defined overcurrent limit, protection against feedback network ...
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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 50 sinking. 230 V AC (1) (2) Adapter Open frame Doc ID 15232 Rev 5 ...
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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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... ° GND FB V > 100 GND GND COMP FB = -10 μ 3.3 V, LIM COMP ° COMP COMPL VIPer16L VIPer16H kHz OSC F = 115 kHz OSC Doc ID 15232 Rev 5 Min Typ Max Unit 3.2 3.3 3.4 V μ mA/V 0 1.1 1 V/A Ω ...
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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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... V threshold, sourcing a I DRAIN_START voltage reaches the V voltage current generator is turned OFF. The VIPer16 is powered by the energy stored in the V capacitor steady state condition, if the self biasing function is used, the high voltage current ...
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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 ±8 kHz (115 kHz version) at 230 Hz (typical) rate, so that the resulting spread- ...
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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. The following description is applicable for the schematics of Figure 28 on page opened or R ...
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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. ...