UC3843 IC - (SMD SOP-8 Package) - Current-Mode PWM Controller 8 Pin IC
The UC3843 series offers high performance in current mode control for various applications.
- Package Type: SMD SOP-8
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Features:
- Trimmed Oscillator for Precise Frequency Control
- Current Mode Operation up to 500 kHz
- Automatic Feed Forward Compensation
- Latching PWM for Cycle-by-Cycle Current Limiting
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Specifications:
- Oscillator Frequency: 250 kHz
- Operation: Current Mode
- Output Type: High Current Totem Pole
- Protection Features: Under-voltage Lockouts, Cycle-by-Cycle Current Limiting
- Other Features: Internally Trimmed Reference, Low Startup Current
- Compliance: Pb-Free, Halide-Free
The UC3843 series are designed for Off-Line and DC-DC converter applications, providing a cost-effective solution with minimal external components. These ICs come with a range of features including a trimmed oscillator for precise duty cycle control, temperature compensated reference, high gain error amplifier, and a current sensing comparator.
The high current totem pole output is ideal for driving power MOSFETs. Protective features like input and reference under-voltage lockouts with hysteresis, cycle-by-cycle current limiting, and programmable output deadtime are included for added safety and control.
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Images are for illustration only; actual product may vary.