Features: Patent Number #5,565,761, #5,747,977, #5,742,151, #5,804,950, #5,798,635 u Pin to pin compatible with ML4800 and FAN4800 u Additional folded-back current limit for PWM section. u 23V Bi-CMOS process u VIN OK turn on PWM at 2.5V instead of 1.5V u Internally synchronized leading ed...
CM6800: Features: Patent Number #5,565,761, #5,747,977, #5,742,151, #5,804,950, #5,798,635 u Pin to pin compatible with ML4800 and FAN4800 u Additional folded-back current limit for PWM section. u 23V ...
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Features: Patents Pending u Pin to pin compatible with CM6800,CM6800A, ML4800 and FAN4800. u 2...
Features: Patents Pending u Pin to pin compatible with CM6800, CM6800A, ML4800, and FAN4800 u 2...
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General Description The CM6800 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 in a power supply that fully compiles with IEC-1000-3-2 specifications. Intended as a BiCMOS version of the industry-standard ML4824, CM6800 includes circuits for the implementation of leading edge, average current, ¨boost type power factor correction and a trailing edge, pulse width modulator (PWM). Gate-driver with 1A capabilities minimizes the need for external driver circuits. Low power requirements improve efficiency and reduce component costs.
An over-voltage comparator CM6800A shuts down the PFC section in the event of a sudden decrease in load. The PFC section also includes peak current limiting and input voltage brownout protection. The PWM section can be operated in current or voltage mode, at up to 250kHz, and includes an accurate 50% duty cycle limit to prevent transformer saturation.
CM6800 includes an additional |