ON 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	UC3845B	ON Semiconductor	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, a latch for single pulse metering, and a flip−flop which blanks the output off every other oscillator cycle, allowing output deadtimes to b
3	UC3843B	ON Semiconductor	HIGH-PERFORMANCE CONTROLLER consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, programmable output deadtime, and a latch for single pulse metering. These devices are available in an 8−pin dual−in−line and surface mount
4	UC3842B	ON Semiconductor	HIGH-PERFORMANCE CONTROLLER consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, programmable output deadtime, and a latch for single pulse metering. These devices are available in an 8−pin dual−in−line and surface mount
5	UC3842A	ON Semiconductor	High Performance Current Controller consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, programmable output deadtime, and a latch for single pulse metering. These devices are available in an 8−pin dual−in−line plastic package a
6	UC3844B	American First Semiconductor	Controllers consisting of input and reference undervoltage lockouts each with hysteresis, cycle –by –cycle current limiting, programmable output deadtime, and a latch for single pulse metering. These devices are available in an 8 –pin dual –in –line and surface mount
7	UC3843AN	ON Semiconductor	High Performance Current Controller consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, programmable output deadtime, and a latch for single pulse metering. These devices are available in an 8−pin dual−in−line plastic package a
8	UC3843B	American First Semiconductor	Controllers consisting of input and reference undervoltage lockouts each with hysteresis, cycle –by –cycle current limiting, programmable output deadtime, and a latch for single pulse metering. These devices are available in an 8 –pin dual –in –line and surface mount
9	UC3845	ON Semiconductor	High Performance Current Mode Controllers consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, a latch for single pulse metering, and a flip−flop which blanks the output off every other oscillator cycle, allowing output dead times to
10	UC3842B	American First Semiconductor	Controllers consisting of input and reference undervoltage lockouts each with hysteresis, cycle –by –cycle current limiting, programmable output deadtime, and a latch for single pulse metering. These devices are available in an 8 –pin dual –in –line and surface mount
11	UC3843A	ON Semiconductor	High Performance Current Mode Controllers consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, programmable output deadtime, and a latch for single pulse metering. These devices are available in an 8−pin dual−in−line plastic package a
12	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
13	UC3844	ON Semiconductor	High Performance Current-Mode Controller consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, a latch for single pulse metering, and a flip−flop which blanks the output off every other oscillator cycle, allowing output dead times to
14	UC3844D	ON Semiconductor	HIGH PERFORMANCE CURRENT MODE CONTROLLERS consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, a latch for single pulse metering, and a flip−flop which blanks the output off every other oscillator cycle, allowing output dead times to
15	UC3844B	ON Semiconductor	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, a latch for single pulse metering, and a flip−flop which blanks the output off every other oscillator cycle, allowing output deadtimes to b
16	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
17	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
18	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
19	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
20	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