CM6903IS CHAMP [Champion Microelectronic Corp.], CM6903IS Datasheet
CM6903IS
Related parts for CM6903IS
CM6903IS Summary of contents
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GENERAL DESCRIPTION The CM6903 space-saving PFC-PWM controller for power factor corrected, switched mode power supplies that offers very low start-up and operating currents. For the power supply less than 500Watt, its input current shaping PFC performance could be ...
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PIN DESCRIPTION Pin No. Symbol PWM current limit comparator input LIMIT 2 V Positive supply CC 3 PWM OUT PWM driver output 4 PFC OUT PFC driver output 5 GND Ground 6 I Current sense input to ...
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... ORDERING INFORMATION Part Number CM6903IZ CM6903IS CM6904IZ ABSOLUTE MAXIMUM RATINGS Absolute Maximum ratings are those values beyond which the device could be permanently damaged. Parameter V MAX CC IAC (after start up) I Voltage SENSE PFC OUT PWM OUT VEAO Voltage on Any Other Pin I Current (Average) ...
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ELECTRICAL CHARACTERISTICS Vcc=+15V 52.3kΩ 470pF Symbol Parameter Threshold Voltage Hysteresis Threshold Voltage Delay to Output Threshold Voltage Hysteresis Digital Soft Start Timer (Note 2) Threshold Voltage Delay to Output (Note 2) Fault Detect ...
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ELECTRICAL CHARACTERISTICS Vcc=+15V 52.3kΩ 470pF Symbol Parameter Duty Cycle Range Output Low Impedance Output Low Voltage Output High Impendence Output High Voltage Rise/Fall Time (Note 2) Start-Up Current Operating Current Undervoltage Lockout Threshold ...
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Functional Description The CM6903/4 consists of an ICST (Input Current Shaping Technique), CCM (Continuous Conduction Mode) or DCM (Discontinuous Conduction Mode) boost PFC (Power Factor Correction) front end and a synchronized PWM (Pulse Width Modulator) back end. The CM6903/4 is ...
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PFC OUT (Pin 4) and PWM OUT (Pin3) PFC OUT and PWM OUT are the high-current power driver capable of directly driving the gate of a power MOSFET with peak currents up to -1A and +0.5A. Both outputs are actively ...
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Equation 2 means: average boost inductor current equals to input current out d Therefore, input instantaneous power is about to equal to the output instantaneous power. For steady state and for the each phase ...
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One of the advantages of this control technique is that it required only one system clock. Switch 1(SW1) turns OFF and switch 2 (SW2) turns ON at the same instant to minimize the momentary “no-load” period, thus lowering ripple voltage ...
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The I Filter filter. The resistor value of the SENSE I Filter is between 100 ohm and 50 ohm. By selecting SENSE R equal to 50 ohm will keep the offset of the IEAO less FILTER than ...
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UVLO The UVLO threshold is 15V providing 5V hysteresis. PFCOUT and PWMOUT Both PFCOUT and PWMOUT are CMOS drivers. They both have adaptive anti-shoot through to reduce the switching loss. Its pull- 30ohm PMOS driver and its pull-down ...
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APPLICATION CIRCUIT (CM6903/ D10 IAC R1C 4K ohm RFIlter R1B ISENSE R1A 400K ohm 100K ohm + D15 ISENSEAMP CFilter D16 VFB VEAO VCC + ...
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PACKAGE DIMENSION PIN 1 ID Preliminary 2002/12/16 Rev. 0.4 Low Pin Count PFC/PWM C 9-PIN SIP (Z09) 16-PIN SOP (S16) Champion Microelectronic Corporation CM6903/4 C ONTROLLER OMBO Page 13 ...
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Champion Microelectronic Corporation (CMC) reserves the right to make changes to its products or to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing ...