L6591TR

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L6591TR

+BOM

IC OFFLINE SW HALF-BRIDGE 16SO

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Specifications

Attribute Value
Package / Case Tape & Reel (TR),Cut Tape (CT)
Part Status Active
Output Isolation Isolated
Internal Switch(s) No
Topology Half-Bridge
Voltage - Start Up 14 V
Voltage - Supply (Vcc/Vdd) 8.7V ~ 22V
Duty Cycle 50%
Frequency - Switching Up to 500kHz
Fault Protection Current Limiting, Over Load
Control Features Frequency Control, Soft Start
Operating Temperature -40°C ~ 150°C (TJ)
Supplier Device Package 16-SO

Overview

Description

"L6591TR" does not seem to correspond to a widely recognized term or code as of my last update in October 2023. It might be a course code, a product ID, or an internal designation specific to a particular organization or field. For an introduction, it would be useful to know the context in which "L6591TR" is being used—such as a university course, a technical manual, or a specific industry.
If it is a course, the introduction would typically include a brief overview of the subject matter, objectives, and key topics covered. For a product or technical specification, the introduction might outline its main features, applications, and target audience. Without additional context, providing a precise introduction is challenging. If you have more details, I’d be happy to help further.

Equivalent

The L6591TR is a resonant controller for switch mode power supplies. Equivalent or similar products may include:
1. UCC25600 by Texas Instruments
2. NCP1396 by ON Semiconductor
3. IRS27951 by Infineon Technologies
4. FAN7621 by Fairchild Semiconductor (now part of ON Semiconductor)
These alternatives may offer similar functionalities but always compare specifications to ensure compatibility with your specific application.

Features

The L6591TR is a versatile and efficient power management integrated circuit (IC) designed for use in power supply applications. It typically features a high-voltage start-up generator and a current-mode PWM controller, which helps optimize the performance of power converters. Key features include:
1. High-Voltage Start-Up: It allows for a simplified power supply design by eliminating the need for external components to manage start-up voltages.
2. Current-Mode Control: This feature ensures stable operation and precise control of the output voltage, improving overall efficiency and performance.
3. Protections: The IC includes various protection mechanisms such as over-voltage, over-current, and thermal shutdown, enhancing reliability and safety.
4. Adjustable Dead-Time: It allows customization of the switching characteristics, which can help optimize efficiency based on specific application requirements.
5. Synchronization Capability: The L6591TR can synchronize with an external clock source, facilitating its use in complex systems that require precise timing.
These features make the L6591TR suitable for applications in consumer electronics, industrial equipment, and other areas where efficiency and reliability are critical.

Pinout

The L6591TR is an advanced PWM controller from STMicroelectronics designed primarily for resonant half-bridge converters. It typically comes in a SO-16 (small outline) package, featuring 16 pins. Its main functions include controlling the power conversion process efficiently and providing necessary protection and control features for resonant converters.
Key functions of the L6591TR include:
1. High-Voltage Start-Up: Enables reduced standby power consumption.
2. Oscillator: Provides a precise frequency control for the resonant converter's operation.
3. Adaptive Dead-Time Control: Optimizes the switching operation to improve efficiency.
4. Overload and Overcurrent Protection: Prevents damage due to overload conditions.
5. Latching Shutdown: Offers enhanced safety by shutting down the device in the event of critical failures.
6. Soft Start: Gradually ramps up the converter to prevent inrush current.
The pinout of the SO-16 package includes pins for the power supply, control signals, feedback, and protections, among others. Each pin serves a specific function, contributing to the controller's overall operational capabilities in power management applications.

Manufacturer

The L6591TR is manufactured by STMicroelectronics. STMicroelectronics is a multinational electronics and semiconductor manufacturer, headquartered in Geneva, Switzerland. It is one of the largest semiconductor companies in the world and supplies a broad range of products for various electronic applications. The company is known for designing and producing integrated circuits, microcontrollers, sensors, and power management components, among others. STMicroelectronics serves multiple industries, including automotive, industrial, personal electronics, and communications equipment.

Application

The L6591TR is a versatile voltage-mode controller intended for power supply applications, specifically designed for use in resonant converters such as LLC resonant half-bridge converters. It is commonly used in applications such as power supplies for consumer electronics, LED lighting, and industrial equipment. It supports efficient and reliable power management in systems requiring high power density and low electromagnetic interference. Additionally, the L6591TR's features make it ideal for use in applications demanding high efficiency over a wide load range, including AC-DC adapters, flat-panel TVs, and other appliances requiring multiple voltage outputs.

Package

The L6591TR is typically available in a surface-mount package known as SO-16, a 16-lead Small Outline package.

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