UC3843 IC - (SMD SOP-14 Package)
Current-Mode PWM Controller 14 Pin IC
- Spec name: Fixed Frequency Current Mode Controllers
- Spec name: Designed for Off?Line and DC?DC converter applications
- Spec name: Trimmed oscillator for precise duty cycle control
- Spec name: Temperature compensated reference
- Spec name: High gain error amplifier
- Spec name: Current sensing comparator
- Spec name: High current totem pole output for driving power MOSFET
- Spec name: Protective features including input and reference under voltage lockouts, cycle?by?cycle current limiting, programmable output deadtime, and latching for single pulse metering
Features:
- Trimmed Oscillator for Precise Frequency Control
- Oscillator Frequency Guaranteed at 250 kHz
- Current Mode Operation to 500 kHz
- Automatic Feed Forward Compensation
The UC3843 series are high performance fixed frequency current mode controllers specifically designed for Off?Line and DC?DC converter applications. These ICs offer a cost?effective solution with minimal external components. They feature a trimmed oscillator for precise duty cycle control, temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output for driving a power MOSFET. The integrated circuits also include protective features such as input and reference under voltage lockouts with hysteresis, cycle?by?cycle current limiting, programmable output deadtime, and a latch for single pulse metering.
This is a Pb?Free and Halide?Free Device.
* Images are for illustration only; actual product may vary.