L6598BDTR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Factor Correction (PFC) controller
• Characteristics: High-performance, digital PFC controller with advanced protection features
• Package: SO-16 (Small Outline 16 pins)
• Essence: Efficiently controls the power factor in AC-DC converters
• Packaging/Quantity: Tape and reel packaging, available in various quantities

Specifications

• Input Voltage Range: 85V to 265V AC
• Output Voltage Range: 400V to 800V DC
• Operating Frequency: Adjustable from 20kHz to 200kHz
• Maximum Duty Cycle: 98%
• Protection Features: Overvoltage protection, overcurrent protection, brownout protection, short-circuit protection

Pin Configuration

The L6598BDTR IC has a total of 16 pins arranged as follows:

1. VCC - Power supply voltage input
2. GND - Ground reference
3. COMP - Error amplifier output
4. INV - Inverting input of the error amplifier
5. CS - Current sense input
6. SS/TRI - Soft-start/tri-state control input
7. RT/CT - Oscillator timing components connection
8. UVLO - Undervoltage lockout input
9. FB - Feedback input
10. VREF - Reference voltage output
11. OUT - Output of the PFC controller
12. NC - No connection
13. NC - No connection
14. NC - No connection
15. NC - No connection
16. NC - No connection

Functional Features

• High-performance digital control for improved power factor correction
• Advanced protection features ensure safe operation
• Adjustable operating frequency for flexibility in design
• Soft-start function for smooth startup and reduced stress on components
• Tri-state control input for easy integration with other circuitry

Advantages and Disadvantages

Advantages

• High efficiency in power factor correction
• Advanced protection features enhance system reliability
• Flexible operating frequency allows optimization for different applications
• Compact SO-16 package enables space-saving designs

Disadvantages

• Requires additional external components for complete power factor correction implementation
• Limited pin configuration options may restrict certain circuit designs

Working Principles

The L6598BDTR is a power factor correction controller that operates by controlling the switching of a boost converter. It utilizes a digital control algorithm to regulate the output voltage and maintain a high power factor. The IC continuously monitors the input current and adjusts the duty cycle of the boost converter to achieve near-unity power factor.

Application Field Plans

The L6598BDTR is commonly used in various AC-DC converter applications where power factor correction is required. Some typical application fields include:

1. Switched-mode power supplies (SMPS)
2. LED lighting systems
3. Industrial motor drives
4. Uninterruptible power supplies (UPS)
5. Electric vehicle charging stations

Alternative Models

For those seeking alternative options, the following power factor correction controllers can be considered:

1. L6562A: Analog PFC controller with similar specifications and features
2. UCC28070: Digital PFC controller with advanced protection features
3. FAN7527: Integrated PFC and PWM controller for simplified design

These alternative models offer similar functionality and can be suitable replacements depending on specific requirements.

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