RS2042 Orister Corporation, RS2042 Datasheet
RS2042
Related parts for RS2042
RS2042 Summary of contents
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... Green-Power PWM Controller with Freq. Jiggling Description The RS2042 is a low startup current, low cost, current mode PWM controller with Green-Power & Burst-mode power-saving operation. The integrated functions such as the leading-edge blanking of the current sensing, internal slope compensation provide the users a high efficiency, low external component counts, and low cost solution for AC/DC power applications ...
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... Typical Application Circuit Block Diagram VIN PWM OTP RT LATCH Internal BIAS UVLO VDD OVP DS-RS2042-03 Dec, 2007 From bridge rectifier 1 GATE 8 GND VDD 6 3 VIN SENSE Current Reference 0.9V OSC S R 56ms Debounce Burst Mode Green Mode Controller Controller ...
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... Supply Voltage (V DD Voltage Feedback (FB Pin) Current Sensing (SEN Pin) Oscillator (RI Pin) GATE Drive Output (GATE Pin) Over-Temperature Protection Section RI Section Range -0 -0 1000 2000 200 260 230 - 150 RS2042 Test Conditions Min Typ Pin 0V, V =15 FB SENSE DD -- 16.0 16 ...
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... Oscillator Operation A resistor connected from the RI pin to GND pin generates a constant current source for the RS2042 controller. This current is used to determine the center PWM frequency. Increasing the resistance will reduce PWM frequency. Using a 26KΩ resistor RI results in a corresponding 67KHz PWM frequency ...
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... Noise from the current sense or the control signal may cause significant pulse width jitter, particularly in continuous-conduction mode. Slope compensation helps alleviate this problem. Good placement and layout practices should be followed. The designer should avoiding long PCB traces and component leads. Compensation and filter components should be located near the RS2042. Finally, increasing the power- MOS gate resistance is advised. ...
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... DIP-8 Dimension 8-Lead DIP-8 Plastic Package Package Code: P SOP-8 Dimension 8-Lead SO-8 Plastic Surface Mounted Package Package Code: S Ordering Information PART NUMBER RS2042P RS2042S DS-RS2042-03 Dec, 2007 α ...
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... Peak Temperature ( Time within actual Peak o Temperature ( Ramp-down Rate Time Peak Temperature o 3. Flow (wave) soldering (solder dipping) Products Pb devices. Pb-Free devices. DS-RS2042-03 Dec, 2007 C~35 C Humidity=65%±15 Ramp- Preheat Ramp-down Peak Time Sn-Pb Eutectic Assembly <3 ...
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... Orister Corporation reserves the right to make changes to its products without notice. • Orister Corporation products are not warranted to be suitable for use in Life-Support Applications, or systems. • Orister Corporation assumes no liability for any consequence of customer product design, infringement of patents, or application assistance. DS-RS2042-03 Dec, 2007 Page No. : 8/8 ...