CM6802 Champion Microelectronic, CM6802 Datasheet
CM6802
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CM6802 Summary of contents
Page 1
... N O GENERAL DESCRIPTION The CM6802 is a green PFC/PWM the new generation of ML4802, ML4841, ML4801 and ML4824-2. Its system clock frequency is generated by the external RT and CT, and then its PWM frequency is 50% of the clock and its PFC frequency is 25% of the clock. CM6802 is designed to be pin-pin compatible with CM6800 family, ML4800 family and ML4824 family ...
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... DC I PWM current limit comparator input LIMIT 10 GND Ground Preliminary 2003/06/ LEED ESISTOR REEN PIN CONFIGURATION Description Champion Microelectronic Corporation CM6802 PFC/PWM C ODE ONTROLLER SOP-16 (S16) / PDIP-16 (P16) Top View IEA REF I SENSE ...
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... REFERENCE . - PFC ILIMIT R Q PWM DUTY 1. ILIMIT Q S VCC UVLO R fosc=2xfpwm=4xfpfc CM6802 C OMBO VCC V VCC VREF 14 POWER FACTOR CORRECTOR VCC MPPFC PFC OUT 12 MNPFC GND CLK PFCOUT PWMOUT VCC MPPWM PWM OUT ...
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... ODE ONTROLLER Package 16-Pin PDIP (P16) 16-Pin SOP (S16) Min. Max 4.5 -5 0.7 GND – 0.3 VCC + 0.3 GND – 0.3 VCC + 0.3 GND – 0.3 VREF + 0 1.5 150 -65 150 -40 125 260 80 105 CM6802 Min. Typ 2.45 2.5 -1.0 -0.5 5.8 6.0 0.1 - -1.5 50 100 -12 C OMBO Units ...
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... ODE ONTROLLER CM6802 Min. Typ. -1.0 -0.5 4.0 4.25 0.65 - < 16. 2.70 2.77 230 0.4 0.5 0.25 19 19.4 1.40 1.5 -1.10 -1.00 80 200 250 0.95 1.0 250 2.35 2.45 0 0.70 0. < 16. CM6802 C OMBO Unit Max. µA V 1.0 V -35 µA µ 2.85 V 290 mV 0 1.65 V -0. 1. 2.55 V 1.2 V 0.81 2.03 0.92 0.29 MHz 0.90 V 75.5 kHz % % Page 5 ...
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... CM6802 Min. Typ. 68 2.5 500 = 2.5V 6 1mA 7.4 7 0℃~70℃ -40℃~85℃ 0.4 7. 0.8 0.4 30 13.5 14.2 50 0-49.5 15 0.8 0.7 30 13.5 14 14.7 15 4.85 5.0 ; VEAO = 6V MAX CM6802 C OMBO Unit Max. 84 kHz V 700 ns 10 22.5 ohm 1 ohm V ns 0-50 % 22.5 ohm 1 ohm µ ...
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... Champion Microelectronic Corporation M PFC/PWM C ODE ONTROLLER 220 200 180 160 140 120 100 -500 -400 -300 -200 -100 0 100 200 ISENSE (mV) ) Transconductance mi 2.2 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0 0.5 1 1.5 2 2.5 3 3.5 VRMS (V) Gain I I SENSE OFFSET Gain I AC CM6802 C OMBO 300 400 500 4 4.5 5 Page 7 ...
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... The synchronized of the PWM with the PFC simplifies the PWM compensation due to the controlled ripple on the PFC output capacitor (the PWM input capacitor). The PWM section of the CM6802 runs at the same frequency as the PFC. In addition to power factor correction, a number of protection features have been built into the CM6802. These ...
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... PFC Section Gain Modulator Figure 1 shows a block diagram of the PFC section of the CM6802. The gain modulator is the heart of the PFC this circuit block which controls the response of the current loop to line voltage waveform and frequency, rms line voltage, and PFC output voltages. There are three inputs to the gain modulator ...
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... R 1.414)/(2 x 200) = 0.197 ohm. PFC OVP In the CM6802, PFC OVP comparator serves to protect the power circuit from being subjected to excessive voltages if the load should suddenly change. A resistor divider from the high voltage DC output of the PFC is fed to VFB. When the voltage on VFB exceeds 2 ...
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... The gain vs. input voltage of the CM6802’s voltage error amplifier, V specially shaped non-linearity such that under steady-state operating conditions the transconductance of the error amplifier local minimum. Rapid perturbation in line or ...
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... LIMIT protection. No voltage error amplifier is included in the PWM stage of the CM6802, as this function is generally performed on the output side of the PWM’s isolation boundary. To facilitate the design of optocoupler feedback circuitry, an offset has been built into the PWM’s RAMP2 input which allows V command a zero percent duty cycle for input voltages below 1 ...
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... LEED ESISTOR REEN Generating V After turning on CM6802 at 15V, the operating voltage can vary from 10V to 19.4V. The threshold voltage of VCC OVP comparator is 19.4V. The hysteresis of VCC OVP is 1.5V. When VCC see 19.4V, PFCOUT will be low, and PWM section will not be disturbed. That’s the two ways to generate VCC ...
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... N O EXAMPLE: With a wanting voltage called, V and the CM6802 driving a total gate charge of 90nC at 100kHz (e.g. 1 IRF840 MOSFET and 2 IRF820 MOSFET), the gate driver current required is 100kHz x 90nC = 9mA GATEDRIVE V V BIAS BIAS 18V 15V www.DataSheet4U.com R = BIAS 5mA ...
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... R1B R2B R3 R4 D12 D13 Champion Microelectronic Corporation PFC/PWM C ODE ONTROLLER R25 R26 C23 U3 C10 C9 C8 R11 C17 C14 C13 D15 C17 C16 C15 D10 R10 R6 C31 R8 C18 VDC C19 R28 C2 D14 C3 C32 R5D R5C R5B R5A CM6802 C OMBO C11 D8 Page 15 ...
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... Q1 R26 Q2N2222 18k MUR1100 22 1N4148 Q2 C23 R23 R24 470p Q2N904 75 22 R25 10k VFB C55A C41 R58 C43 IEAO U2 CM6802 1 16 VEAO IEAO VEAO 2 15 IAC VFB VREF 3 14 VREF I-SENSE VREF 4 13 VCC C54 VCC VRMS VCC C52 C53 ...
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... N O PACKAGE DIMENSION PIN 1 ID www.DataSheet4U.com PIN 1 ID Preliminary 2003/06/ LEED ESISTOR REEN 16-PIN PDIP (P16) 16-PIN SOP (S16) Champion Microelectronic Corporation CM6802 PFC/PWM C ODE ONTROLLER C OMBO Page 17 ...
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... Preliminary 2003/06/ LEED ESISTOR REEN IMPORTANT NOTICE Sales & Marketing 11F, No. 306-3, Sec Tung Rd., Hsichih, Taipei Hsien 221 Taiwan, R.O. +886-2-8692 1591 +886-2-8692 1596 Champion Microelectronic Corporation CM6802 PFC/PWM C ODE ONTROLLER C OMBO Page 18 ...