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CM6901XIP датащи(PDF) 1 Page - Champion Microelectronic Corp. |
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CM6901XIP датащи(HTML) 1 Page - Champion Microelectronic Corp. |
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1 / 15 page ![]() CM6901 SLS (SRC/LLC+SR) Controller with 1 FM+2 PWMs 2012/05/09 Rev2.0 Champion Microelectronic Corporation Page 1 GENERAL DESCRIPTION FEATURES CM6901 is a SLS, SRC/LLC + SR resonant controller and it can operate at both SRC and LLC region with synchronous rectification to achieve high efficiency. Its unique features: FM + 2 PWMING modes. It is used for DC-DC conversion in offline application. Light load regulation is accomplished by transitioning the controller from frequency modulation mode into PWM mode. To have the optimal balance performance between hold-up time and efficiency, its frequency range crosses fr1(resonant frequency). CM6901 system has a constant voltage feedback loop with precision 2.5V VFB reference. The 1V ILIMIT can be latched when a standby converter is applied; otherwise, it is an auto-restart I limit. 90+ Controller Smaller and Thinner Transformer 20ms with reasonable Bulk Cap(hold up time) SLS, SRC/LLC + SR resonant controller Supply Voltage Range : 10V to 20V. 2 Gate Drivers: Typical Peak Drive from 12V supply : (PMOS~200 ohm and NMOS~100 ohm). UVLO =11V with 1V Hystetesis. Reference OK Comparator. FM + 2 PWMING Mode Operation Light Load PWMING (light load regulation) SR Ideal Diode PWMING(cross resonant frequency application ) GM FEAO, FM modulation Error Amplifier GM DEAO, PWM Error Amplifier Close Loop Soft start Capability with Shutdown Function. Auto-Restart during Current Limit . Precision 2.5V VFB threshold for constant voltage feedback loop. Precision 1V I limit threshold. Patented APPLICATIONS CM6901 Pin Configuration DC-DC power supply. |
Аналогичный номер детали - CM6901XIP |
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Аналогичное описание - CM6901XIP |
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