Fairchild Semiconductor UC3 fiche technique

No.	Partie #	Fabricant	Description
1	UC3845	Fairchild Semiconductor	SMPS Controller • • • • 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 c
2	UC3846	Fairchild Semiconductor	SMPS Controller • Automatic Feed Forward Compensation • Programmable Pulse by Pulse Current Limiting • Automatic Symmetry Correction in Push-Pull Configuration • Enhanced Load Response Characteristics • Parallel Operation Capability for Modulator Power Systems • Dif
3	UC3525A	Fairchild Semiconductor	SMPS Controller • • • • • 5V ± 1% Reference Oscillator Sync terminal Internal Soft Start Deadtime Control Under-Voltage Lockout Description UC3525A is a monolithic integrated circuit that Included all of the control circuit necessary for a pulse width modulating re
4	UC3843	Fairchild Semiconductor	SMPS Controller • • • • 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 c
5	UC3844D	Fairchild Semiconductor	SMPS Controller • • • • 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 c
6	UC3844D1	Fairchild Semiconductor	SMPS Controller • • • • 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 c
7	UC3843A	Fairchild Semiconductor	SMPS Controller • • • • • • • Low Start Current 0.2mA (typ) Operating Range Up To 500KHz Cycle by Cycle Current Limiting Under Voltage Lock Out With Hysteresis Short Shutdown Delay Time: typ.100ns High Current Totem-pole Output Output Swing Limiting: 22V Descriptio
8	UC3842A	Fairchild Semiconductor	SMPS Controller • • • • • • • Low Start Current 0.2mA (typ) Operating Range Up To 500KHz Cycle by Cycle Current Limiting Under Voltage Lock Out With Hysteresis Short Shutdown Delay Time: typ.100ns High Current Totem-pole Output Output Swing Limiting: 22V Descriptio
9	UC3844	Fairchild Semiconductor	SMPS Controller • • • • 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 c