KA3842S - Brand New Fairchild Semiconductor IC Chips
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Description
The KA3842S is a fixed-frequency current-mode PWM controller designed for OFF-Line and DC-to-DC converter applications. It requires minimal external components and provides precise duty cycle control. The integrated circuit features a trimmed oscillator, temperature-compensated reference, high-gain error amplifier, current sensing comparator, and a high-current totem pole output, making it ideal for driving a power MOSFET.
Specifications and features
• Low Start-Up Current
• Maximum Duty Cycle
• Under Voltage Lockout With Hysteresis
• Operating Frequency Up To 500kHz
Application Scenarios
The KA3842S is commonly used in OFF-Line and DC-to-DC converter applications. It is suitable for a wide range of electronic devices that require precise duty cycle control and high-current output.
Comparison
Advantages- Trimmed oscillator for precise duty cycle control
- Temperature-compensated reference for stable performance
- High-gain error amplifier for accurate feedback
- Current sensing comparator for efficient power management
- High-current totem pole output for driving power MOSFET
Disadvantages- Limited operating frequency range (up to 500kHz)
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
Delivery period:
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Popular parts of the same kind
- Datasheet: Download KA3842S
- Chipdatas Part: CD87-KA3842S
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/05 07:48 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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