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CS3843A

Cherry Semiconductor Corporation
Part Number CS3843A
Manufacturer Cherry Semiconductor Corporation
Description Off-Line Current Mode PWM Control Circuit with Undervoltage Lockout
Published Mar 23, 2005
Detailed Description CS2842A/3843A SERIES CS2842A/CS3842A CS2843A/CS3843A Off-Line Current Mode PWM Control Circuit with Undervoltage Locko...
Datasheet PDF File CS3843A PDF File

CS3843A
CS3843A

Overview
CS2842A/3843A SERIES CS2842A/CS3842A CS2843A/CS3843A Off-Line Current Mode PWM Control Circuit with Undervoltage Lockout Description The CS284XA, CS384XA provides all the necessary features to implement off-line fixed frequency current-mode control with a minimum number of external components.
The CS384XA family incorporates a new precision temperature-controlled oscillator with an internally trimmed discharge current to minimize variations in frequency.
A precision dutycycle clamp eliminates the need for an external oscillator when a 50% dutycycle is used.
Duty-cycles greater than 50% are also possible.
On board logic ensures that VREF is stabilized before the output stage is enabled.
Ion...


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