Product Summary

CM6800G is a controller for power factor corrected, switched mode power suppliers. The CM6800G includes an additional folded-back current limit for PWM section to provide short circuit protection function. Applications of the CM6800G include: Desktop PC Power Supply, Internet Server Power Supply, IPC Power Supply, UPS, Battery Charger, DC Motor Power Supply, Monitor Power Supply, Telecom System Power Supply and Distributed Power.

Parametrics

CM6800G absolute maximum ratings: (1) Vcc: 20V; (2) IEAO: 0 to 7.5V; (3) Isense Voltage: -5 to 0.7V; (4) PFC OUT : GND -0.3 to Vcc +0.3V; (5) PWMOUT: GND -0.3 to Vcc +0.3V; (6) Voltage on Any Other Pin: GND -0.3 to Vcc +0.3V; (7) IREF: 10mA; (8) IAC Input voltage: 1mA; (9) Peak PFC OUT Current, Source or Sink: 1A; (10) Peak PWM OUT Current, Source or Sink: 1A; (11) PFC OUT, PWM OUT Energy Per Cycle: 1.5μJ; (12) Junction Temperature: 150°C; (13) Storage Temperature Range: -65 to 150°C; (14) Operating Temperature Range: -40 to 125°C; (15) Lead Temperature (Soldering, 10 sec) : 260°C; (16) Thermal Resistance (θJA) Plastic DIP: 80°C/W, Plastic SOIC: 105°C/W; (17) Power Dissipation (PD) TA<50°C: 800mW.

Features

CM6800G features: (1) Patent Number #5,565,761, #5,747,977, #5,742,151, #5,804,950, #5,798,635; (2) Pin to pin compatible with ML4800 and FAN4800; (3) Additional folded-back current limit for PWM section; (4) 23V Bi-CMOS process; (5) VIN OK turn on PWM at 2.5V instead of 1.5V; (6) Internally synchronized leading edge PFC and trailing edge PWM in one IC; (7) Low start-up current (100μA typ.) ; (8) Low operating current (3.0mA type.) ; (9) Low total harmonic distortion, high PF; (10) rown-out control, over-voltage protection, UVLO, and soft start, and Reference OK.

Diagrams

CM6800G Pin Configuration