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UC3843 Current Mode PWM Controller IC – High-Performance Power Supply Controller
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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
₨ 27 -
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UC3845 High-Speed PWM Controller IC – Current Mode Controller for SMPS, Inverters & DC-DC Converters
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✅ Current-mode PWM controller with fast response
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✅ Wide input voltage: 7V to 30V
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✅ Low start-up current (0.5 mA typical)
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✅ High oscillator frequency: up to 500 kHz
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✅ Built-in UVLO (Under Voltage Lockout)
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✅ Internal error amplifier and current sense comparator
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✅ DIP-8 or SOP-8 package
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✅ Perfect for SMPS, DC-DC converters, UPS, and motor drives
₨ 35 -
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ULN2003 Darlington Transistor Array IC – High-Current, High-Voltage Driver IC for Motors and Relays
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✅ Seven NPN Darlington pairs in a single IC
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✅ High-voltage operation: up to 50V
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✅ High current handling: up to 500mA per channel
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✅ Built-in flyback diodes for protection against inductive loads
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✅ Easy interfacing with low-level logic signals (e.g., microcontrollers)
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✅ Commonly used in relay drivers, stepper motor control, and other power drivers
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✅ Available in a 16-pin DIP or SOIC package
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✅ Ideal for driving motors, relays, solenoids, and high-power actuators
₨ 30 -
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🚀 TL071 IC | High-Speed JFET-Input Operational Amplifier
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⚡ High Slew Rate: Boasts a rapid $13 \text{ V/µs}$ rate, ensuring excellent pulse response and high-speed signal tracking.
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💎 Ultra-Low Harmonic Distortion: Maintains a typical $0.003\%$ distortion level, making it perfect for premium audio equipment.
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🔌 Low Input Bias Current: Features JFET inputs that minimize current leakage (typically $30 \text{ pA}$), preserving sensitive signals.
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🛡️ Short-Circuit Protection: Built-in output protection prevents chip failure during accidental grounding or overloads.
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📉 Wide Common-Mode Range: Operates reliably across a broad range of input voltages without experiencing latch-up.
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🌡️ Internal Frequency Compensation: Designed for stable operation across various frequencies without the need for external components.
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🔋 Flexible Power Supply: Optimized to work efficiently with a wide range of dual-supply voltages from $\pm 5\text{V}$ up to $\pm 15\text{V}$.
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📦 Compact PDIP-8 Package: The standard 8-pin through-hole design ensures easy breadboarding and secure PCB mounting for DIYers and pros.
₨ 40 -