CM6800AGIS Champion Microelectronic Corp., CM6800AGIS Datasheet
CM6800AGIS
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CM6800AGIS Summary of contents
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GENERAL DESCRIPTION The CM6800A is a controller for power factor corrected, switched mode power suppliers. Power Factor Correction (PFC) allows the use of smaller, lower cost bulk capacitors, reduces power line loading and stress on the switching FETs, and results ...
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PIN DESCRIPTION Pin No. Symbol 1 IEAO PFC transconductance current error amplifier output 2 I PFC gain control reference input Current sense input to the PFC current limit comparator SENSE 4 V Input for PFC RMS line ...
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... RAMP1 7 350 RAMP2 8 SW SPST - 1V + VDC 6 Vcc 20uA 350 SPST SW SPST SW SPST VREF DC ILIMIT 9 GND 10 ORDERING INFORMATION Part Number CM6800AGIP* CM6800AGIS Suffix for Pb Free Product *Note: 2006/10/11 Rev. 1 TART- P URRENT 1 IEAO VCC OVP VCC + 17.9V - 2.75V gmi + . + - - -1V 3 ...
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ABSOLUTE MAXIMUM RATINGS Absolute Maximum ratings are those values beyond which the device could be permanently damaged. Parameter V CC IEAO I Voltage SENSE PFC OUT PWMOUT Voltage on Any Other Pin I REF I Input Current AC Peak PFC ...
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ELECTRICAL CHARACTERISTICS Vcc=+15V, R =30.16kΩ 1000pF Symbol Parameter Sink Current Source Current Open Loop Gain Power Supply Rejection Ratio Threshold Voltage Hysteresis Threshold Voltage Threshold Voltage Hysteresis Fault Detect HIGH Time to Fault Detect HIGH ...
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ELECTRICAL CHARACTERISTICS Vcc=+15V 30.16kΩ 1000pF Symbol Parameter Initial Accuracy Voltage Stability Temperature Stability Total Variation Ramp Valley to Peak Voltage PFC Dead Time (Note 4) CT Discharge Current Output Voltage Line Regulation Load ...
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TYPICAL PERFORMANCE CHARACTERISTIC 127 120 113 106 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 VFB (V) Voltage Error Amplifier (g mv 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 ...
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Functional Description The CM6800A consists of an average current controlled, continuous boost Power Factor Correction (PFC) front end and a synchronized Pulse Width Modulator (PWM) back end. The PWM can be used in either current or voltage mode. In voltage ...
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The output of the gain modulator is a current signal, in the form of a full wave rectified sinusoid at twice the line frequency. This current is applied to the virtual-ground (negative) input of the current error amplifier. In this ...
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VEAO - 0.3V + LOW POWER DETECT VFB GMv 18 - 3.5K . 2.5V + IAC 2 GAIN VRMS MODULATOR 4 ISENSE 3 RAMP1 7 Error Amplifier Compensation The PWM loading of the PFC can be modeled as a ...
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Z : Compensation Net Work for the Current Loop Transconductance of IEAO PFC Boost Output Voltage; typical designed value OUTDC is 380V and we use the worst condition to calculate the ...
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Oscillator (RAMP1) The oscillator frequency is determined by the values of R and C , which determine the ramp and off-time of the T oscillator output clock OSC + t t RAMP DEADTIME The dead time of ...
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C is the required soft start capacitance, and the the desired start-up delay. DEALY It is important that the time constant of the PWM soft-start allow the PFC time to generate sufficient output power for the ...
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Leading/Trailing Modulation Conventional Pulse Width Modulation (PWM) techniques employ trailing edge modulation in which the switch will turn on right after the trailing edge of the system clock. The error amplifier output is then compared with the modulating ramp up. ...
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APPLICATION CIRCUIT (Voltage Mode) EMC FILTER R5 R3 IVIN IVIN_EMC L2 L3 RT1 VIN PWM_IN PFC_Vout C7 R27 C22 10n 10n 100k D13 MUR1100 C15 10n VCC C34 100n Q6 Q2N2222 R28 PWM_DC PWM_OUT Q7 ...
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APPLICATION CIRCUIT (Current Mode) EMC FILTER R5 R3 IVIN IVIN_EMC L2 L3 RT1 VIN PWM_IN PFC_Vout C7 R27 C22 10n 10n 100k D13 MUR1100 C15 10n VCC C34 100n Q6 Q2N2222 R28 PWM_DC PWM_OUT Q7 ...
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PACKAGE DIMENSION PIN 1 ID PIN 1 ID 2006/10/11 Rev. 1 TART- P URRENT 16-PIN PDIP (P16) 16-PIN SOP (S16), 0.300” Wide Body θ Champion Microelectronic Corporation CM6800A PFC/PWM C ONTROLLER θ Page 17 ...
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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 ...