поискавой системы для электроныых деталей |
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LM3495 датащи(PDF) 11 Page - Texas Instruments |
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LM3495 датащи(HTML) 11 Page - Texas Instruments |
11 / 35 page VLIN5 VIN TRACK FB COMP /SD CSL LG ILIM SW/ CSH HG BOOST INTERNAL SOFT- START HICCUP + - PWM COMP + - 20 PA PWM LOGIC CONTROL AND DRIVER CONTROL 2V RAMP GENERATOR AND SLOPE COMPENSATION INTERNAL 4.7V REGULATOR VLIN5 SHOOT- THROUGH PROTECT ADAPTIVE DUTY CYCLE AND SKIP MODE CONTROL OSCILLATOR AND SYNCHRONIZATION CONTROL IRAMP IFREQ IFREQ CLAMPED: LO 0.9V HI 2.0V IRAMP PGND SGND FPWM SNS FREQ/ SYNC 5 PA FROM LG TO SHOOT- THROUGH PROTECT SHUTDOWN VREF = 0.6V 2 PA LM3495 www.ti.com SNVS410E – FEBRUARY 2006 – REVISED NOVEMBER 2007 Block Diagram Applications Information THEORY OF OPERATION The LM3495 is an advanced, current mode PWM synchronous controller. Unlike traditional peak current mode controllers which sense the current while the high-side FET is on, the LM3495 senses current while the low-side FET is on. The LM3495 then emulates the peak current waveform and uses that information to regulate the output voltage. High-side ON pulses as low as 50 ns are possible to achieve low duty cycle operation. The LM3495 therefore enjoys both excellent line transient response and the ability to regulate low output voltages from high input voltages. Copyright © 2006–2007, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: LM3495 |
Аналогичный номер детали - LM3495 |
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Аналогичное описание - LM3495 |
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