VIPER53DIP-E STMicroelectronics, VIPER53DIP-E Datasheet
VIPER53DIP-E
Specifications of VIPER53DIP-E
Related parts for VIPER53DIP-E
VIPER53DIP-E Summary of contents
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General features European Type (195 - 265Vac) DIP-8 50W TM 65W PowerSO-10 Features ■ Switching frequency up to 300kHz ■ Current limitation ■ Current mode control with adjustable limitation ■ Soft start and shut-down control ■ Automatic burst mode in ...
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Contents Contents 1 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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... These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 1. ...
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Electrical characteristics 2 Electrical characteristics T = 25° 13V, unless otherwise specified J DD Table 3. Power section Symbol Parameter BV Drain-source voltage I DSS Off state drain I DSS current Static drain-source R DS(on) On state resistance ...
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VIPer53 - E Table 5. Supply section Symbol Drain voltage starting V DSstart threshold I Startup charging current DDch1 I Startup charging current DDch2 Startup charging current I DDchoff in thermal shutdown Operating supply current I DD0 not switching Operating ...
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Electrical characteristics Table 7. PWM comparator section Symbol Parameter H V COMP COMP V V COMPos COMP Peak drain current I Dlim limitation Drain current I Dmax capability Current sense delay Turn-Off V COMP V COMPbl change ...
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VIPer53 - E 3 Pin connections and function Figure 1. Pin connection (top view) COMP 1 OSC 2 3 SOURCE 4 SOURCE Figure 2. Current and voltage conventions V 8 TOVL 7 VDD DRAIN DIP ...
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Pin connections and function Table 10. Pin function Pin Name Power supply of the control circuits. Also provides the charging current of the external capacitor during start-up. The functions of this pin are managed by four threshold voltages: - VDDon: ...
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VIPer53 - E 4 Operation pictures Figure 3. Rise and fall time 90 10% Figure 4. Overloaded event t VDD OSC 15V t rv TOVL Normal Abnormal operation operation V DDon ...
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Operation pictures Figure 5. Start- DD0 V DDhyst I DDch2 I DDch1 Figure 7. Thermal shutdown HYST DDon V COMP 10/36 current Figure ...
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VIPer53 - E Figure 9. Shutdown action V OSC V OSChi V OSClo V COMP V COMPoff I D Figure 11. Output characteristics I COMP I COMPhi 0 I COMPlo Figure 10. Comp pin gain and offset I Dpeak t ...
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Operation pictures Figure 12. Oscillator schematic The switching frequency settings shown on the graphic here below is valid within the following boundaries: R > 300kHz SW Figure 13. Oscillator settings Frequency (kHz) 12/36 Vcc VDD Rt ...
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VIPer53 - E Figure 14. Error amplifier test cpfiguration This configuration is for test purpose only. In order to insure a correct stability of the error amplifier, a capacitor of 10nF (minimum value: 8nF) should be always connected between COMP ...
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Operation pictures Figure 16. Typical frequency variation vs. junction temperature Normalised Frequency Figure 17. Typical current limitation vs. junction temperature Normalised IDlim 1.04 1.02 0.98 0.96 14/36 1.04 1.02 1 0.98 0.96 - Temperature (°C) 1 -20 ...
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VIPer53 - E 5 Primary regulation configuration example Figure 18. Off line power supply with auxiliary supply feedback The schematic on amplifier of the device in a primary feedback configuration. The primary auxiliary ...
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Primary regulation configuration example The switching frequency can be set to any value through the choice of R3 and C5. This allows to optimize the efficiency of the converter by adopting the best compromise between switching losses, EMI (Lower with ...
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VIPer53 - E 6 Secondary feedback configuration example Figure 19. Off line power supply with optocoupler feedback When a more accurate output voltage is needed, the way is to monitor it directly ...
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Secondary feedback configuration example Since the dynamic characteristics of the converter are set on the secondary side through components associated to U3, the compensation network has only a role of gain stabilization for the optocoupler, and its value can be ...
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VIPer53 - E 7 Current mode topology The VIPer53-E implements the conventional current mode control method for regulating the output voltage. This kind of feedback includes two nested regulation loops: The inner loop controls the peak primary current cycle by ...
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Standby mode 8 Standby mode The device offers a special feature to address the low load condition. The corresponding function described hereafter consists of reducing the switching frequency by going into burst mode, with the following benefits: – It reduces ...
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VIPer53 - E Equation 3 Where Ip(V COMPbl voltage of V COMPbl Note: The power point PSTBY where the converter is going into burst mode does not depend on the input voltage. The standby frequency F Equation 4 The ratio ...
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High voltage Start-up current source 9 High voltage Start-up current source An integrated high voltage current source provides a bias current from the DRAIN pin during the start-up phase. This current is partially absorbed by internal control circuits in standby ...
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VIPer53 - E Figure 21. Start-up waveforms DD1 I DDch2 I DDch1 V tSS DD V DDreg V DDst V DDsd tSU High voltage Start-up current source t t 23/36 ...
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Short-circuit and overload protection 10 Short-circuit and overload protection A V threshold of about 4.35V has been implemented on the COMP pin. When COMPovl V goes above this level, the capacitor connected on the TOVL pin begins to charge. COMP ...
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VIPer53 - E 11 Transconductance error amplifier The VIPer53-E includes a transconductance error amplifier. Transconductance Gm is the change in output current I Equation 8 The output impedance Z Equation 9 This last equation shows that the open loop gain ...
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Transconductance error amplifier optocoupler, the internal error amplifier is fully used for regulation). A typical schematic corresponding to this situation can be seen on The transfer function of the power cell is represented as G(s) in which depends on the ...
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VIPer53 - E The lowest load gives another condition for stability: The frequency F the second order slope generated by the load pole and the integrator part of the error amplifier. This condition can be met by adjusting the C ...
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Transconductance error amplifier Figure 23. Typical transfer functions 28/36 Gain (dB - 100 1k Frequency (Hz) Phase (°) 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 1 10 ...
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VIPer53 - E Figure 24. Complete converter transfer function G(S) 1 ---------------------------------------------- - OUT 1 ---------------------------------------------- - OUT 1 F(S) --------------------------------------------------------------------------- - 2 R COMP 1 F(S).G( Transconductance error amplifier ...
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Special recommendations 12 Special recommendations As steted in the error amplifier section, a capacitor of 10nF capacitor (minimum value: 8nF) should always be connected to the COMP pin to ensure correct stability of the internal error amplifier Figure 18, In ...
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VIPer53 - E 14 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and ...
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Package mechanical data Table 11. DIP8 mechanical data Ref Package Weight Figure 25. Package dimensions 32/36 Dimensions Databook (mm) Nom. Min 0.38 2.92 3.30 0.36 0.46 1.14 ...
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VIPer53 - E Table 12. PowerSO-10 mechanical data Ref Figure 26. Package dimensions Dimensions Databook (mm) Nom. Min 3.35 0.00 0.40 0.35 9.40 ...
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... Order codes 15 Order codes Table 13. Order codes Part Number VIPer53DIP-E VIPer53SP-E VIPer53SPTR - E 34/36 Package DIP-8 PowerSO-10 PowerSO-10 VIPer53 - E Shipment Tube Tube Tape and reel ...
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VIPer53 - E 16 Revision history Table 14. Revision history Date 13-Nov-2006 Revision 1 Initial release. Revision history Changes 35/36 ...
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