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CS2841B

Features: · Optimized for Off-line Control· Internally Trimmed Temperature Compensated Oscillator· Maximum Duty-cycle Clamp· VREF Stabilized before Output Stage Enabled· Low Start-up Current· Pulse-by-pulse Current Limiting· Improved Undervoltage Lockout· Double Pulse Suppression· 1% Trimmed Bandg...

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SeekIC No. : 004316284 Detail

CS2841B: Features: · Optimized for Off-line Control· Internally Trimmed Temperature Compensated Oscillator· Maximum Duty-cycle Clamp· VREF Stabilized before Output Stage Enabled· Low Start-up Current· Pulse-...

CS2841B Data Sheet

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Part Number:
CS2841B
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

· Optimized for Off-line Control
· Internally Trimmed Temperature Compensated Oscillator
· Maximum Duty-cycle Clamp
· VREF Stabilized before Output Stage Enabled
· Low Start-up Current
· Pulse-by-pulse Current Limiting
· Improved Undervoltage Lockout
· Double Pulse Suppression
· 1% Trimmed Bandgap Reference
· High Current Totem Pole Output


Pinout

Connection Diagram


Specifications

Supply Voltage (Low Impedance Source)......................................................... 40V
Output Current ...............................................................................................±1A
Output Energy (Capacitive Load) ......................................................................5J
Analog Inputs (VFB, Sense) .............................................................. -0.3V to 5.5V
Error Amp Output Sink Current......................................................................10mA
Lead Temperature Soldering
    Wave Solder (through hole styles only) ......................10 sec. max, 260°C peak
    Reflow (SMD styles only) .....................60 sec. max above 183°C, 230°C peak


Description

The CS2841B provides all the necessary features to implement offline fixed frequency current-mode control with a minimum number of external components.

The CS2841B (a variation of the CS-2843A) is designed specifically for use in automotive operation. The low start threshold voltage of 8.0V (typ), and the ability to survive  40V automotive load dump transients are important for automotive subsystem designs. The CS-2841 series has a history of quality and reliability in automotive applications.

The CS2841B incorporates a precision temperature-controlled oscillator with an internally trimmed discharge current to minimize variations in frequency. 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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