V > CC = 20 VA V > CC = 20 VA > V = −1.0C > V = −1.0C 1.80 V > L = 10 pFT > L = 10 pFT > A = 25 C > A = 25 а C1.75 V1.70 V 3.00 V1.75 V 0.50 V > 0.5 V/DIV 20 mV/DIV 1.0 s/DIV 1.0 s/DIV > V V = 50 VT > CC = 20 VR > pin1 T = 10 kC > A = 25 C ТȒ20−40 −60 −804.08.0121620 > PIN 8 = 1.0 FT > A = 25 C > , STARTUP CURRENT (mA) I start I Vreg, REGULATOR VOLTAGE CHANGE (mV) ТȆ 012345678 0246810121416 0 0 I > reg , REGULATOR SOURCE CURRENT (mA) V > CC , POWER SUPPLY VOLTAGE (V) > T > A = 25 C V > CC = 0 V V > CC = 14 V > , STARTUP CURRENT (mA) start 012345678 01020304050 V > pin1 , STARTUP PIN VOLTAGE (V)...

Mirror VCC 3Startup Input 450 Output 2.25 II 9.0RSQDriver ProtectionInputDrain Feedback Input TT 4 I OscillatorPWMPWM Latch Current Limit ThermalShutdownError StartupControlBand GapRegulatorUVLO14.5 V/9.5 VOVP2.6 V Current 2.6 V Regulator Output6.5 VRC867 4, 5, 12, 13Gnd 1116 910 1 Voltage Compensation Power SwitchOvervoltage AC InputDC Comparator Leading Edge Blanking Comparator 270 A Amplifier > Capacitor CCompensationPWMComparatorOutputOscillator OutputPWM LatchQ Output T t Propagation Delay Power SwitchGate Drive Leading EdgeBlanking Input(Power SwitchDrain Current) CurrentLimitThreshold...

The Power Switch is designed to directly drive the convertertransformer and is capable of switching a maximum of 500 V and 2.0 A. Proper device voltage snubbing andheatsinking are required for reliable operation. A Leading Edge Blanking circuit was placed in thecurrent sensing signal path. This circuit prevents apremature reset of the PWM Latch. The premature reset is generated each time the Power Switch is driven intoconduction. It appears as a narrow voltage spike across thecurrent sense resistor, and is due to the MOSFET gate to source capacitance, transformer interwinding capacitance,and...

Test Conditions Results Line Regulation V > in = 92 Vac to 138 Vac, I > O 4.0 A = 1.0 mV Load Regulation V > in = 115 Vac, I > O = 1.0 A to 4.0 A = 9.0 mV Output Ripple V > in = 115 Vac, I > O = 4.0 A Triangular = 10 mVppSpike = 60 mVpp Efficiency V > in = 115 Vac, I > O = 4.0 A 78.4% This data was taken with the components listed below mounted on the printed circuit board shown in Figure 23. For high efficiency and small circuit board size, the Sanyo OsCon capacitors are recommended for C8, C9, C10 and C11.C8, C9, C10 = Sanyo OsCon #6SA330M, 330 F 6.3 V.C11 = Sanyo OsCon #10SA220M, 220 F 10...

NOTES:1.DIMENSIONING AND TOLERANCING PER ANSIY14.5M, 1982.2.CONTROLLING DIMENSION: INCH. 3.DIMENSION L TO CENTER OF LEADS WHENFORMED PARALLEL.4.DIMENSION A AND B DOES NOT INCLUDE MOLDPROTRUSION.5.MOLD FLASH OR PROTRUSIONS SHALL NOTEXCEED 0.25 (0.010).6.ROUNDED CORNER OPTIONAL. 16918 > 16981 NOTES:1.DIMENSIONING AND TOLERANCING PER ANSIY14.5M, 1982.2.CONTROLLING DIMENSION: MILLIMETER. 3.DIMENSIONS A AND B DO NOT INCLUDE MOLDPROTRUSION.4.MAXIMUM MOLD PROTRUSION 0.15 (0.006) PERSIDE.5.DIMENSION D DOES NOT INCLUDE DAMBARPROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.13 (0.005) TOTAL INEXCESS...