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TS3410 Fiches technique(PDF) 3 Page - Taiwan Semiconductor Company, Ltd |
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TS3410 Fiches technique(HTML) 3 Page - Taiwan Semiconductor Company, Ltd |
3 / 10 page TS3410 1A / 1.4MHz Synchronous Buck Converter 3/10 Version: C08 Block Diagram FB EN VIN SW GND Over-Temperature and Short-Circuit Protection REF Soft-Star 0.6V + - - + Icomp Isense AMP OSC SLOPE COMP PWM LOGIC Izero COMP NON-OVERLAP CONTROL RESET SET Enable Logic Function Description Operation TS3410 is a monolithic switching mode step-down DC-DC converter. It utilizes internal MOSFETs to achieve high efficiency and can generate very low output voltage by using internal reference at 0.6V. It operates at a fixed switching frequency, and uses the slope compensated current mode architecture. This step-down DC-DC Converter supplies minimum 1000mA output current at input voltage range from 2.5V to 5.5V. Current Mode PWM Control Slope compensated current mode PWM control provides stable switching and cycle-by-cycle current limit for excellent load and line transient responses and protection of the internal main switch (P-Ch MOSFET) and synchronous rectifier (N-CH MOSFET). During normal operation, the internal P-Ch MOSFET is turned on for a certain time to ramp the inductor current at each rising edge of the internal oscillator, and switched off when the peak inductor current is above the error voltage. The current comparator, ICOMP, limits the peak inductor current. When the main switch is off, the synchronous rectifier will be turned on immediately and stay on until either the inductor current starts to reverse, as indicated by the current reversal comparator, IZERO, or the beginning of the next clock cycle.. |
Numéro de pièce similaire - TS3410_10 |
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Description similaire - TS3410_10 |
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