UC2845BD1 - onsemi

Manufacturer Part Number

UC2845BD1

Manufacturer

onsemi

Introduction

The UC2845BD1 is a DC DC switching controller designed for power management applications. It belongs to the family of UC284x series controllers, focusing on efficient power conversion in step-up or step-up/step-down configurations with an emphasis on providing isolation if needed.

Product Features and Performance

Capable of driving a transistor for step-up or step-up/step-down power conversion

Supports isolated configurations

Adjustable duty cycle up to 48% for flexible power management

Operates with a supply voltage range of 7.6V to 30V

Switching frequency can go up to 500kHz, allowing for compact designs

Features frequency control for precise power regulation

Designed for surface mount technology (SMT)

Product Advantages

Flexibility in designing both isolated and non-isolated power supply systems

High-frequency operation facilitates smaller passive components, reducing overall size

Broad voltage range accommodates various power sources

The ability to adjust the duty cycle enhances compatibility with multiple applications

Key Technical Parameters

Output Type: Transistor Driver

Function: Step-Up, Step-Up/Step-Down

Output Configuration: Positive, Isolation Capable

Topology: Boost, Flyback

Voltage Supply (Vcc/Vdd): 7.6V ~ 30V

Frequency Switching: Up to 500kHz

Duty Cycle (Max): 48%

Operating Temperature: -25°C ~ 85°C (TA)

Quality and Safety Features

Adheres to stringent onsemi production quality standards

Operational temperature range ensures stability in various environments

Compatibility

Compatible with a wide range of power transistors for flexibility in design

Suits various kinds of power conversion applications such as boost or flyback topologies

Application Areas

Power supplies requiring isolation

Industrial control systems

Renewable energy systems

Electronic equipment needing efficient power management

Product Lifecycle

The UC2845BD1 is classified as obsolete; however, onsemi may offer suitable replacements or upgrades. It’s vital to consult the manufacturer for the latest information on lifecycle and alternative options.

Several Key Reasons to Choose This Product

High efficiency and flexibility in power conversion applications

Wide operating voltage and frequency range suitable for diverse applications

Small package size beneficial for compact designs

The product's capability for isolation makes it ideal for safety-critical applications

Being part of onsemi's product line ensures reliability and support