QW3863 – IC PWM SMD Current Controller – SOP-8

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🔧 Technical specifications – QW3863

• Type: Current mode PWM controller
• Package: SOP-8 (8-pin SMD)
• Operating frequency: Up to 500 kHz
• Supply voltage: approximately 12 V – 25 V
• Output: Totem-pole for driving MOSFETs (up to 1 A)
• Reference output: 5 V – 50 mA
• Protection: Cycle-by-cycle current limit

🧩Distribution of pines:

1. COMP – Error Loop Compensation
2. VFB – Voltage Feedback
3. ISENSE – Current Detection
4. RT/CT – Frequency Settings
5. GND – Ground
6. OUTPUT – Control output for MOSFET
7. VCC – Power Supply
8. VREF – Internal 5V reference

⚡Ideal for:

• Switching power supplies (SMPS)
• Battery chargers
• DC-DC converters
• Inverter controllers

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