KA3842S - Brand New Fairchild Semiconductor IC Chips
-
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)
-
Similar parts: 430483 , Click to view
-
Datasheet
-
Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
- - Automatic Email notification (above 5 times)
- - View in your order page
Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
- - Automatic Email notification (above 5 times)
- - View in your order page
How to Buy:
- - In-stock, Add to cart > Check out > Submit order > Complete payment >Delivery.
- - Inquiry, Add to inquiry sheet/Submit bom/inquire file/Send email us > Quote > Place order > Complete payment >Delivery.
- View more
Payment:
- - Paypal,Credit Card includes Visa, Master, American Express.
- - Wire transfer, include Local bank transfer.
- - Western Union.
- View more
-
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
-
- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
-
The fee is charged according to the rule of PayPal.
-
The fee is charged according to the rule of PayPal.
-
Western Union charge US$0.00 banking fee.
-
We recommend to use bank transfer for large orders to save on handling fees.
-
DHL(www.dhl.com)
$40 limited time offer. -
UPS(www.ups.com)
$40 limited time offer. -
FedEx(www.fedex.com)
$40 limited time offer. -
Registered Mail(www.singpost.com)
Free shipping without minimum order.