Details

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BUY UC3871N https://www.utsource.net/itm/p/913276.html
Hex inverter single stage

Parameter	Description	UC3871N Specifications
Input Voltage (Vcc)	Supply voltage for the IC	4.5V to 16V
Operating Temperature	Ambient temperature range where the device can operate	-40°C to +85°C
Frequency Range	Frequency at which the controller operates	10kHz to 500kHz
Output Current	Maximum current that can be supplied by the output pins	200mA
Start-Up Current	Current required for the device to start up	5mA
Shutdown Current	Current consumption in shutdown mode	10μA
Duty Cycle Range	Range of duty cycle the PWM can achieve	0% to 100%
Package Type	Type of package	SOIC-8
Protection Features	Built-in protection features	Overcurrent, overvoltage, thermal shutdown

Instructions for Use:

1. Power Supply Connection: Connect the Vcc pin to a stable power supply within the specified range of 4.5V to 16V. Ensure proper decoupling capacitors are placed close to the Vcc pin to maintain stability.

2. Grounding: Ensure a solid ground connection to avoid noise and instability issues. All grounds should be connected together and directly to the power supply ground.

3. Setting Operating Frequency: The operating frequency is set using an external resistor connected between the RT/CT pin and ground. Refer to the datasheet for specific resistor values corresponding to desired frequencies.

4. PWM Control: The duty cycle can be controlled via the PWM input pin. Apply a control signal here to modulate the output as needed.

5. Output Configuration: The output pin can drive external MOSFETs or other switching elements. Ensure the load does not exceed the maximum output current capability.

6. Protection Circuits: Utilize the built-in protection features by connecting appropriate sensors or signals to the relevant pins (e.g., overcurrent sense).

7. Thermal Management: Monitor the operating temperature and ensure adequate heat sinking if operating near the upper temperature limit.

8. Layout Considerations: Keep high-frequency traces short and direct to minimize parasitic effects. Separate analog and digital sections to reduce interference.

For detailed design considerations and advanced applications, refer to the full datasheet provided by the manufacturer.

(For reference only)