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CS52843 - Current Mode PWM Control Circuit

General 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.

Key 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 Details

Part number CS52843
Manufacturer onsemi
File Size 266.35 KB
Description Current Mode PWM Control Circuit
Datasheet download datasheet CS52843 Datasheet

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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.