Moteur de recherche de fiches techniques de composants électroniques |
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ISL1902 Fiches technique(PDF) 4 Page - Intersil Corporation |
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ISL1902 Fiches technique(HTML) 4 Page - Intersil Corporation |
4 / 25 page Functional Block Diagram - ISL1902 OUT PWM COMPARATOR PWM LATCH + - S R Q Q + - RAMP AC CrCM DETECTOR fMAX Clamp 200mV + - Master Oscillator LPOUT REFIN DUTY CYCLE TO VOLTAGE CONVERTER LOW PASS FILTER INRUSH 150us One Shot INRUSH CONTROL CIRCUIT + - - DELADJ + - Triangle Wave Generator CLK - + PWMOUT VERR 600 mV VREF LOUT LFB LREF DIMMING PWM + - EA1 CrCM OSCILLATOR/PWM/ERROR AMPLIFIERS LINEAR AMPLIFIER OC Leading Edge Blanking FB1 Quasi-ZVS Delay IOUT REFINBUFF + - EA2 FB2 PRIMARY OC CLK DELAYED AC-P fMIN Clamp Peak Detector 1/5 SS/5 1/5 Verr/5 PWM VERR AC Present 0-Xing Blanking _ + + Bias and Reference Generator GND VDD UVLO + - VREF OTP Shutdown 150 - 170 °C BIAS/UVLO/OTP + - CS- CS+ DIFFERENTIAL ISENSE IOUT No AC Counter CLK CARRY - + PRELOAD OFFREF MINIMUM DIMMING LEVEL CONTROL 0.25 V SS LOW FAULT LATCH + - S R Q Q SS + - 300 ms Soft Start ENABLE + - 1.50 V BG INHIBIT INHIBIT VERR CLAMP OVP REF Reference SS AC-PRESENT SS REFINBUFF Reference SS Buffer Q Q 350 μS One Shot Q Q AC DETECTION SOFT-START/POR/OVP |
Numéro de pièce similaire - ISL1902 |
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Description similaire - ISL1902 |
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