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CS52843 - Current Mode PWM Control Circuit

Datasheet Summary

Description

Package Lead Number SO 8 1 2 3 4 5 6 7 8 SO

14 1 3 5 7 8 9 10 11 12 14 2, 4, 6, 13 Lead Symbol COMP VFB SENSE OSC GND Pwr GND VOUT VCCPwr VCC VREF NC Function Error amp output, used to compensate error amplifier.

Error amp inverting input.

Features

  • es Optimized for Off.
  • Line Control Internally Temperature Compensated Oscillator VREF Stabilized before Output Stage is Enabled Very Low Start.
  • Up Current 300 μA (typ) Pulse.
  • by.
  • Pulse Current Limiting Improved Undervoltage Lockout Double Pulse Suppression 2.0% 5.0 Volt Reference High Current Totem Pole Output 14 1 SO.
  • 14 D SUFFIX CASE 751A PIN.

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Datasheet preview – CS52843

Datasheet Details

Part number CS52843
Manufacturer ON Semiconductor
File Size 266.35 KB
Description Current Mode PWM Control Circuit
Datasheet download datasheet CS52843 Datasheet
Additional preview pages of the CS52843 datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com CS52843 Current Mode PWM Control Circuit The CS52843 provides all the necessary features to implement off−line fixed frequency current−mode control with a minimum number of external components. The CS52843 incorporates a new precision temperature−controlled oscillator to minimize variations in frequency. An undervoltage lockout ensures that VREF is stabilized before the output stage is enabled. In the CS52843 turn on is at 8.4 V and turn off at 7.6 V. Other features include low start−up current, pulse−by−pulse current limiting, and a high−current totem pole output for driving capacitive loads, such as gate of a power MOSFET. The output is low in the off state, consistent with N−channel devices. http://onsemi.
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