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CS52843ED8 Datasheet PDF - ON Semiconductor

CS52843 image

Part Name
CS52843ED8

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9 Pages

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MFG CO.
ON-Semiconductor
ON Semiconductor ON-Semiconductor

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.


FEATUREs
• 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

 


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