CM494 Datasheet, PDF (4/9 Pages) List of Unclassifed Manufacturers – ADVANCED REGULATING PULSE WIDTH MODULATOR

CM494
ADVANCED REGULATING PULSE WIDTH MODULATOR
ABSOULTE MAXIMUM RATINGS
Supply voltage, Vcc(Note 2)………………………… 45V
Amplifier input voltages…………………… Vcc + 0.3V
Collector output voltage…………………………… 41V
Collector output current………………………… 250mA
Continuous total dissipation…………………… 1000mW
@ (or below) 25℃ free air temperature range (Note 3)
Storage temperature range………………-65℃ to + 150℃
Lead temperature 1 / 16"(1.6mm) from case for 60 seconds,
J package…………………………………………300℃
Lead temperature 1 / 16"(1.6mm) from case for 10 seconds,
N package……………………………………… 260℃
Note 1: Over operating free air temperature range unless
otherwise noted.
Note 2: All voltage values are with respect to network
ground terminal 3.
Note 3: Consult package section of data book regarding
thermal specification and limitation of package.
RECOMMENDED OPERATING CONDITION
Supply voltage Vcc…………………… 7V to 40V
Error amplifier input voltages………-0.3 to Vcc-2V
Collector output voltage……………………… .40V
Collector output current (each transistor)… 200mA
Current into feedback terminal………………..0.3mA
Timing capacitor, CT…
0.47nF to 10,000nF
Timing resistor, RT………………..1.8kΩ to 500kΩ
Oscillator Frequency…………………1kHz to 300kHz
Operating free air temperature
UC494A, UC495A………………-55℃ to + 125℃
UC494AC, UC495AC……………….0℃ to +70℃
2000/12/29 Preliminary
Champion Microelectronic Corporation
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