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CS2842A - Off-Line Current Mode PWM Controller

Datasheet Summary

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 enab.

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Datasheet Details

Part number CS2842A
Manufacturer Cherry Semiconductor Corporation
File Size 156.14 KB
Description Off-Line Current Mode PWM Controller
Datasheet download datasheet CS2842A Datasheet
Additional preview pages of the CS2842A datasheet.

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Full PDF Text Transcription

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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 implant resistors provide tighter control of undervoltage lockout.
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