UC3846N DC switching regulator controller IC DIP16

The UC3846N DC Switching Regulator Controller IC is a versatile current-mode PWM controller designed for high-performance DC-DC converters. It features an internal oscillator, error amplifier, and output driver, making it suitable for controlling switching power supplies with high efficiency and stability. The IC operates with a wide supply voltage range and provides precise duty cycle control for regulated output voltage.

Key Features of UC3846N DC Switching Regulator Controller IC:

• Wide Operating Voltage: 8V to 35V supply range for versatile applications.
• Current Mode Control: Provides improved line and load regulation.
• Adjustable Oscillator Frequency: Up to 500kHz for efficient switching.
• Under-Voltage Lockout: Ensures safe startup and shutdown.
• Output Driver: Push-pull to drive external MOSFETs or transistors.
• Thermal Shutdown Protection: Prevents damage during overheating.

Technical Specifications of UC3846N DC Switching Regulator Controller IC:

• Operating Voltage: 8V to 35V DC
• Oscillator Frequency: Adjustable up to 500kHz
• Output Current: Peak to peak 1.0A push-pull output driver
• Current Sense Input Voltage: Up to 1V
• Duty Cycle: 0% to 100%
• Package Type: 16-pin DIP

Mechanical Characteristics of UC3846N DC Switching Regulator Controller IC:

• Package: DIP16 Plastic Package
• Operating Temperature: -40°C to +125°C
• Storage Temperature: -65°C to +150°C

Dimensions of UC3846N DC Switching Regulator Controller IC:

• Length: 19mm
• Width: 15mm
• Thickness: 3mm (excluding pin headers)

Schematic Diagram, Connection, Wiring and Pinout of UC3846N IC:

• Pin 1 (Comp): Compensation pin for error amplifier.
• Pin 2 (Vref): Reference voltage output (5V).
• Pin 3 (I_sense): Current sense input for PWM control.
• Pin 4 (RT/CT): Timing resistor and capacitor for oscillator frequency.
• Pin 5 (Dead Time): Controls dead time between output pulses.
• Pin 6 (Output A): Push-pull output driver A.
• Pin 7 (Output B): Push-pull output driver B.
• Pin 8 (Vcc): Supply voltage (8V to 35V).
• Pin 9 (GND): Ground.
• Pin 10 (Vref Input): Reference voltage input.
• Pin 11 (Error Amp In-): Negative input of error amplifier.
• Pin 12 (Error Amp In+): Positive input of error amplifier.
• Pin 13 (Shutdown): Active low shutdown input.
• Pin 14 (Current Sense Return): Return for current sense.
• Pin 15 (RT/CT): Additional timing pin.
• Pin 16 (Vcc): Second supply voltage pin.

Datasheet of UC3846N DC Switching Regulator Controller IC:

• Download UC3846N Datasheet (PDF)

Applications of UC3846N DC Switching Regulator Controller IC:

• Switching Power Supplies: Used for efficient DC-DC converters in industrial and consumer electronics.
• Battery Chargers: Control circuits for regulated charging of batteries.
• Motor Control: Pulse width modulation for motor speed regulation.
• DC-DC Converters: Used in isolated and non-isolated converters for voltage regulation.
• Telecommunications Equipment: Power management circuits.

Equivalent of UC3846N DC Switching Regulator Controller IC:

• UC3845: Fixed-frequency current mode PWM controller with similar specifications
• NCP1200: PWM controller IC for switching power supplies
• IRS3846: High-performance PWM controller IC for power regulation
• TL494: Versatile PWM controller with adjustable frequency and duty cycle

Package Includes:

• 1 x UC3846N DC Switching Regulator Controller IC (DIP16 Package)