DatasheetsPDF.com

UC3842

Fairchild
Part Number UC3842
Manufacturer Fairchild
Description SMPS Controller
Published May 23, 2005
Detailed Description www.fairchildsemi.com UC3842/UC3843/UC3844/UC3845 SMPS Controller Features • • • • Low Start up Current Maximum Duty Cl...
Datasheet PDF File UC3842 PDF File

UC3842
UC3842

Overview
www.
fairchildsemi.
com UC3842/UC3843/UC3844/UC3845 SMPS Controller Features • • • • Low Start up Current Maximum Duty Clamp UVLO With Hysteresis Operating Frequency up to 500KHz Description The UC3842/UC3843/UC3844/UC3845 are fixed frequencycurrent-mode PWM controller.
They are specially designed for Off-Line and DC to DC converter applications with minimum external components.
These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator and a high current totempole output for driving a Power MOSFET.
The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off).
The UC...


Similar Datasheet


Since 2006. D4U Semicon,
Electronic Components Datasheet Search Site. (Privacy Policy & Contact)