UC3843 Current Mode PWM Controller IC – High-Performance Power Supply Controller
₨ 27
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✅ Current-mode PWM controller
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✅ Wide input voltage range (7V–40V)
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✅ High speed with low start-up current (typically 1mA)
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✅ Excellent line and load regulation
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✅ Internal under-voltage lockout (UVLO)
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✅ Soft start and frequency stability
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✅ DIP-8 or SOP-8 package (depending on version)
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✅ Ideal for SMPS, DC-DC converters, inverters, and battery chargers
The UC3843 is a high-performance current mode PWM (Pulse Width Modulation) controller IC designed for off-line and DC-to-DC converter applications. It offers high-speed operation with low startup current and accurate duty cycle control, making it ideal for power supply circuits, inverters, SMPS, battery chargers, and other industrial electronics. Its compact size and reliable performance make it a favorite among circuit designers and hobbyists alike.
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