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VIPer20ASP Dataheets PDF



Part Number VIPer20ASP
Manufacturers STMicroelectronics
Logo STMicroelectronics
Description SMPS PRIMARY I.C.
Datasheet VIPer20ASP DatasheetVIPer20ASP Datasheet (PDF)

® VIPer20/SP/DIP VIPer20A/ASP/ADIP SMPS PRIMARY I.C. T YPE VIPer20/SP/DIP VIPer20A/ASP/ADIP V DSS 620V 700V In 0.5 A 0.5 A R DS(on) 16 Ω 18 Ω PENTAWATT HV FEATURE s ADJUSTABLE SWITCHING FREQUENCY UP TO 200KHZ s CURRENT MODE CONTROL s SOFT START AND SHUT DOWN CONTROL s AUTOMATIC BURST MODE OPERATION IN STAND-BY CONDITION ABLE TO MEET ”BLUE ANGEL” NORM (<1W TOTAL POWER CONSUMPTION) s INTERNALLY TRIMMED ZENER REFERENCE s UNDERVOLTAGE LOCK-OUT WITH HYSTERESIS s INTEGRATED START-UP SUPPLY s AVA.

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® VIPer20/SP/DIP VIPer20A/ASP/ADIP SMPS PRIMARY I.C. T YPE VIPer20/SP/DIP VIPer20A/ASP/ADIP V DSS 620V 700V In 0.5 A 0.5 A R DS(on) 16 Ω 18 Ω PENTAWATT HV FEATURE s ADJUSTABLE SWITCHING FREQUENCY UP TO 200KHZ s CURRENT MODE CONTROL s SOFT START AND SHUT DOWN CONTROL s AUTOMATIC BURST MODE OPERATION IN STAND-BY CONDITION ABLE TO MEET ”BLUE ANGEL” NORM (<1W TOTAL POWER CONSUMPTION) s INTERNALLY TRIMMED ZENER REFERENCE s UNDERVOLTAGE LOCK-OUT WITH HYSTERESIS s INTEGRATED START-UP SUPPLY s AVALANCHE RUGGED s OVERTEMPERATURE PROTECTION s LOW STAND-BY CURRENT s ADJUSTABLE CURRENT LIMITATION DESCRIPTION VIPer20/20A, made BLOCK DIAGRAM OSC PENTAWATT HV (022Y) 10 1 PowerSO-10 DIP-8 using VIPower M0 Technology, combines on the same silicon chip a state-of-the-art PWM circuit together with an optimized high voltage avalanche rugged Vertical Power MOSFET (620V or 700V / 0.5A). Typical applications cover off line power supplies with a secondary power capability of 10W in wide range condition and 20W in single range or with doubler configuration. It is compatible from both primary or secondary regulation loop despite using around 50% less components when compared with a discrete solution. Burst mode operation is an additional feature of this device, offering the possibility to operate in stand-by mode without extra components. DRAIN ON/OFF OSCILLATOR SECURITY LATCH VDD UVLO LOGIC R/S FF S Q PWM LATCH R1 S FF R2 R3 Q OVERTEMP. DETECTOR 0.5 V + _ 1.7 µs delay 250 ns Blanking + _ + 0.5V _ 6 V/A CURRENT AMPLIFIER _ 13 V + ERROR AMPLIFIER 4.5V COMP SOURCE FC00491 November 1999 1/21 VIPer20/SP/DIP - VIPer20A/ASP/ADIP ABSOLUTE MAXIMUM RATING Symb ol V DS Parameter Continuous Drain-Source Voltage (Tj = 25 to 125o C) for VIPer20/SP/DIP for VIPer20A/ASP/ADIP Maximum Current Supply Voltage Voltage Range Input Voltage Range Input Maximum Continuous Current Electrostatic discharge (R = 1.5 K Ω C = 100pF) Avalanche Drain-Source Current, Repetitive or Not-Repetitive o (T C = 100 C, Pulse Width Limited by T J max, δ <1%) for VIPer20/SP for VIPer20A/ASP/ADIP o Power Dissipation at T c = 25 C Junction Operating Temperature Storage Temperature Value -0.3 to 620 -0.3 to 700 Internally Limited 0 to 15 0 to V DD 0 to 5 ±2 4000 Unit V V A V V V mA V ID VDD V OSC V COMP I COMP V esd I D(AR) P tot Tj T s tg 0.5 0.4 57 Internally Limited -65 to 150 A A W o C o C THERMAL DATA PENT AW ATT R thj-p in R t hj-ca se R th j-a mb. Thermal Resistance Junction-case Thermal Resistance Ambient-case Max Max 2.0 70 2.0 60 35 # PowerSO-10 DIP-8 20 o o o C/W C/W C/W (*) When mounted using the minimum recommended pad size on FR-4 board. # On multylayer PCB CONNECTION DIAGRAMS (Top View) PENTAWATT HV PENTAWATT HV (022Y) PowerSO-10 OS C Vdd SOURC E COMP 4 5 SC 10540 DIP-8 1 8 DRAIN DRAIN DRAIN DRAIN CURRENT AND VOLTAGE CONVENTIONS IDD ID VDD DRAIN IOSC OSC 13V + COMP SOURCE VDD VDS ICOMP VOSC VCOMP FC00020 2/21 VIPer20/SP/DIP - VIPer20A/ASP/ADIP ORDERING NUMBERS PENTAW AT T HV VIPer20 VIPer20A PENT AW ATT HV (022Y) VIPer20 (022Y) VIPer20A (022Y) PowerSO-10 VIPer20SP VIP er20ASP DIP -8 VIPer20DIP VIPer20ADIP PINS FUNCTIONAL DESCRIPTION DRAIN PIN: Integrated power MOSFET drain pin. It provides internal bias current during start-up via an integrated high voltage current source which is switched off during normal operation. The device is able to handle an unclamped current during its normal operation, assuring self protection against voltage surges, PCB stray inductance, and allowing a snubberless operation for low output power. SOURCE PIN: Power MOSFET source pin. Primary side circuit common ground connection. VDD PIN : This pin provides two functions : constant current source, and can easily be connected to the output of an optocoupler. Note that any overvoltage due to regulation loop failure is still detected by the error amplifier through the VDD voltage, which cannot overpass 13V. The output voltage will be somewhat higher than the nominal one, but still under control. COMP PIN : This pin provides two functions : - It is the output of the error transconductance amplifier, and allows for the connection of a compensation network to provide the desired transfer function of the regulation loop. Its bandwidth can be easily adjusted to the needed value with usual components value. As stated above, secondary regulation configurations are also implemented through the COMP pin. - It corresponds to the low voltage supply of the control part of the circuit. If VDD goes below 8V, the start-up current source is activated and the output power MOSFET is switched off until the VDD voltage reaches 11V. During this phase, the internal current consumption is reduced, the VDD pin is sourcing a current of about 2mA and the COMP pin is shorted to ground. After that, the current source is shut down, and the device tries to start up by switching again. - When the COMP voltage is going below 0.5V, the shut-down of the circuit o.


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