UC3845AN - Texas Instruments

Manufacturer Part Number

UC3845AN

Manufacturer

Texas Instruments

Introduction

The UC3845AN is a high-performance pulse width modulation (PWM) controller utilized for power supply control.

Product Features and Performance

High output drive capability

Oscillator frequency up to 500 kHz

Programmable duty cycle up to 100%

Trimmed oscillator for precise frequency control

Automatic feed-forward compensation

Pulse-by-pulse current limiting

Enhanced load response characteristics

Soft-start capability

Precision reference trimmed for accuracy

Product Advantages

Stable and reliable PWM control

Flexible design options due to high-frequency capability

Enhanced power efficiency

Reduced external component count

Capable of handling high current applications

Key Technical Parameters

Voltage Input: -0.3V to 6.3V

Voltage Supply: 7.6V to 30V

Current Supply: 11 mA

Operating Temperature: 0°C to 70°C

Mounting Type: Through Hole

Package / Case: 8-DIP

Quality and Safety Features

Overcurrent protection

Under-voltage lockout with hysteresis

Thermal shutdown feature for safety

Compatibility

Compatible with a variety of inductors and capacitors

Suitable for use with external transistors for higher power applications

Application Areas

Switching power supplies

DC-DC converters

Off-line converters

AC-DC adaptors/chargers

Product Lifecycle

Product Status: Active

Not nearing discontinuation

Ongoing support and availability of replacements

Several Key Reasons to Choose This Product

Manufactured by Texas Instruments, a reputable and reliable semiconductors provider

High-frequency operation reduces the size of power supply components

Robust protection features ensure long-term reliability

Precision control enables improved efficiency for power systems

Availability of technical support and design resources from Texas Instruments