UC3525AQ - Unitrode

Manufacturer Part Number

UC3525AQ

Manufacturer

Texas Instruments

Introduction

The UC3525AQ is an integrated Pulse Width Modulation (PWM) controller suitable for a range of power supply and DC-DC conversion applications.

Product Features and Performance

Integrated Transistor Driver

Supports Step-Up, Step-Down, and Step-Up/Step-Down topologies

Configurable for Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, and Push-Pull circuits

Dual Output capability

Single Output Phase

Supply Voltage range between 8V and 35V

Adjustable Switching Frequency from 100Hz to 400kHz

Max Duty Cycle of 49%

Synchronous Rectification for efficiency

Clock Synchronization feature

Product Advantages

Versatile for various circuit topologies

Synchronous Rectification enables high efficiency

Clock Synchronization for noise-sensitive applications

Soft Start feature to prevent inrush current at startup

Key Technical Parameters

Output Type: Transistor Driver

Topology: Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull

Number of Outputs: 2

Output Phases: 1

Voltage - Supply (Vcc/Vdd): 8V ~ 35V

Frequency - Switching: 100Hz ~ 400kHz

Duty Cycle (Max): 49%

Synchronous Rectifier: Yes

Clock Sync: Yes

Operating Temperature: 0°C ~ 70°C

Quality and Safety Features

Operates within industrial temperature range

Surface Mount package for robustness

Compatibility

Surface Mount technology compatible

20-LCC (J-Lead) package suitable for various PCB designs

Application Areas

Power Supplies

DC-DC Converters

Battery Management Systems

Motor Control

Industrial and Commercial Equipment

Product Lifecycle

Obsolete

Replacements or upgrades may be available

Several Key Reasons to Choose This Product

Able to adapt to various power conversion needs

High efficiency with PWM control and synchronous rectification

Flexibility of switching frequencies for various applications

Operational reliability within a wide temperature range

Manufactured by Texas Instruments, a leader in semiconductor solutions