UC1843L - Brand New Texas Instruments IC Chips
In Stock:6114 ,Ready for Immediate Shipping
New
RoSH Lead free
In Stock:
6114,
Ready for Immediate Shipping
Brand:Texas Instruments
Category:IC Chips
Chipdatas Part No.:CD87-UC1843L
Manufacturer Part No.:UC1843L
Datecode:09+
Package:unknown/call
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Description
The UC184xA family of control ICs is designed for off-line fixed-frequency, current-mode switching power supplies. This product includes all the necessary features to implement power supplies with a minimum of external components, such as improved load regulation, pulse-by-pulse current limiting, and inherent protection of the power supply output switch.
Specifications and features
- Low start-up current (0.5mA max.)
- Trimmed oscillator discharge current (See Product Highlight)
- Optimized for off-line and DC-to-DC converters
- Automatic feed forward compensation
- Pulse-by-pulse current limiting
- Enhanced load response characteristics
- Under-voltage lockout with hysteresis
- Double pulse suppression
- High-current totem pole output
- Internally trimmed bandgap reference
- 500KHz operation
- Low offset error amplifier
Application Scenarios
The UC1843L is an appropriate choice for the following applications:
- Economical off-line flyback or forward converters
- DC-DC buck or boost converters
- Low-cost DC motor control
Comparison
Advantages- Improved load regulation
- Pulse-by-pulse current limiting
- Enhanced load response characteristics
- High-current totem pole output
- Low offset error amplifier
Disadvantages- Not suitable for applications requiring high precision
- Frequency and maximum duty cycle must be externally programmed
- Undervoltage lock-out requires 250µA typ. start-up current
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Datasheet
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Additional Information
- Datasheet: Download UC1843L
- Chipdatas Part: CD87-UC1843L
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/18 11:14 +0800
Refund
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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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