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CS3843B

Cherry Semiconductor Corporation
Part Number CS3843B
Manufacturer Cherry Semiconductor Corporation
Description Off-Line Current Mode PWM Control Circuit Off-Line Current Mode PWM Control Circuit
Published Mar 23, 2005
Detailed Description CS3842B/3843B CS3842B/CS3843B Off-Line Current Mode PWM Control Circuit with Very Low Start Up Current Description The...
Datasheet PDF File CS3843B PDF File

CS3843B
CS3843B

Overview
CS3842B/3843B CS3842B/CS3843B Off-Line Current Mode PWM Control Circuit with Very Low Start Up Current Description The CS384XB provides all the necessary features to implement off-line fixed frequency current-mode control with a minimum number of external components.
The family has been optimized for very low start up current (300µA, typ).
The CS384XB family incorporates a precision temperature-controlled oscillator with an internally trimmed discharge current to minimize variations in frequency.
A precision duty-cycle clamp eliminates the need for an external oscillator when a 50% duty-cycle is used.
Duty-cycles of almost 100% are possible.
On board logic ensures that VREF is stabilized b...


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