UC3845G SMD IC 5PC Pack – UTC PWM Controller IC | 3845 SMD IC | 3845 IC SMD.

The UC3845G SMD IC is a high-performance PWM (Pulse Width Modulation) controller IC designed for switch-mode power supply (SMPS), inverter, adapter, charger, and other power-control applications. This UTC UC3845 SMD PWM controller IC is suitable for electronic repair and replacement applications where a reliable current-mode PWM control solution is required.

This product includes 5 pieces of UC3845G SMD IC, making it suitable for technicians, electronics repair professionals, hobbyists, and electronic component users.

Product Specifications

• Product Name: UC3845G SMD IC
• IC Type: PWM Controller / Current-Mode PWM Controller
• Brand: UTC
• Model: UC3845G
• Package: SMD
• Quantity: 5 Pieces
• IC Function: PWM Control / SMPS Controller
• Operating Mode: Current-Mode PWM
• Application: SMPS, power supply, inverter, charger and power electronics
• Mounting Type: Surface Mount (SMD)
• Suitable For: Electronic repair and replacement
• Product Type: PWM Controller IC

UC3845G SMD IC Features

• High-performance PWM controller IC
• Designed for current-mode control
• Suitable for SMPS power supply circuits
• Useful for inverter and switching power supply applications
• Compact SMD package
• Suitable for electronic repair and replacement
• Helps provide controlled PWM switching in power circuits
• Suitable for various industrial and consumer electronic applications
• 5-piece pack for convenient repair and spare-part use

UC3845 SMD IC Pinout

The UC3845 series uses an 8-pin configuration. The commonly used pin functions are:

• Pin 1 – COMP: Error amplifier compensation / PWM control
• Pin 2 – VFB: Voltage feedback input
• Pin 3 – ISENSE: Current-sense input
• Pin 4 – RT/CT: Oscillator timing resistor and capacitor connection
• Pin 5 – GND: Ground / negative supply
• Pin 6 – OUTPUT: PWM gate-drive output
• Pin 7 – VCC: IC power supply input
• Pin 8 – VREF: Internal reference voltage output

Important: Always compare the marking and package of the original IC and check the manufacturer’s datasheet before replacement, because package and pin configuration should be verified for your specific circuit.

Applications

The UC3845G PWM controller IC can be used in a wide range of switching and power-control circuits, including:

• SMPS (Switched Mode Power Supply)
• Inverter circuits
• UPS power supplies
• Battery charger circuits
• AC/DC power supplies
• DC/DC converter circuits
• Adapter power supplies
• Electronic power-control circuits
• Industrial power supplies
• LED driver and switching circuits
• Electronic repair and maintenance

Why Choose UC3845G SMD IC?

The UTC UC3845G SMD PWM controller is a practical replacement component for power-supply and switching applications. Its current-mode PWM control architecture makes it useful in circuits requiring controlled switching and feedback-based power regulation. The 5-piece pack is convenient for repair technicians and electronic component stock.

Package Contents

• UC3845G SMD PWM Controller IC – 5 Pieces

UC3845G SMD IC 5PC Pack UTC | 3845 PWM Controller IC

Buy UC3845G SMD IC 5PC Pack from UTC. 3845 PWM controller IC for SMPS, inverter, charger and switching power supply repair applications.