UCC3807D - Brand New TI/BB DC DC Switching Controllers
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Description
The UCC3807D is a current-mode Pulse Width Modulated (PWM) controller designed for off-line, flyback, or forward converters with minimal external components. It provides all the necessary control and protection functions for efficient power conversion.
Specifications and features
- Very low start-up supply current; 50 µA typical
- Low operating supply current; 1.2 mA typical
- Accurate, internally-trimmed, fixed frequency oscillator (100 kHz). No external timing components needed
- Internal slope compensation. No external ramp components needed
- Built-in over-voltage and under-voltage detection
- High-speed over-current trip; 170 ns typical
- Over-voltage clamp on supply voltage (VDD)
- Internal divider regulates VDD to 12 V. No external divider needed
- Leading edge blanking of the current sense signal
- Control frequency modulated over a narrow band to reduce Electromagnetic Interference (EMI)
- High output drive capability; 150 ns typical rise and fall time into 2 nF load
- Wide bandwidth (10 MHz) error amplifier with external compensation pin and simple interface to optocoupler
- Accurate internal bandgap reference.Application Scenarios
- Off-line switched mode power supplies
- Laptop computer mains adaptors
- Printer power supplies.Comparison
Advantages- Minimal external components required for implementation
- Accurate and internally-trimmed oscillator for precise timing
- Built-in protection functions for safe operation
- High output drive capability for efficient power conversion
- Wide bandwidth error amplifier for improved performance.Disadvantages- Limited to off-line, flyback, or forward converter applications
- Control frequency modulation may introduce some Electromagnetic Interference (EMI). -
Similar parts: 3823 , Click to view
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Datasheet
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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:
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Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
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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.
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Payment:
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Popular parts of the same kind
- Datasheet: Download UCC3807D
- Chipdatas Part: CD94-UCC3807D
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/03 10:32 +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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The fee is charged according to the rule of PayPal.
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Western Union charge US$0.00 banking fee.
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We recommend to use bank transfer for large orders to save on handling fees.
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DHL(www.dhl.com)
$40 limited time offer. -
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Free shipping without minimum order.
