MIC38HC42BN

Product Overview

Category

MIC38HC42BN belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for power factor correction (PFC) applications.

Characteristics

• High efficiency
• Low harmonic distortion
• Wide input voltage range
• Overvoltage protection
• Thermal shutdown protection

Package

MIC38HC42BN is available in a 16-pin DIP (Dual Inline Package) format.

Essence

The essence of MIC38HC42BN lies in its ability to improve power factor and reduce harmonic distortion in electrical systems.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 1000 units per package.

Specifications

• Input Voltage Range: 85VAC to 265VAC
• Output Voltage Range: 400VDC to 800VDC
• Operating Frequency: 50Hz to 60Hz
• Maximum Output Power: 150W
• Total Harmonic Distortion: <10%
• Efficiency: >90%

Detailed Pin Configuration

1. VCC - Power supply voltage input
2. GND - Ground reference
3. COMP - Compensation pin for feedback control loop
4. CS - Current sense input
5. INV - Inverting input of error amplifier
6. NONINV - Non-inverting input of error amplifier
7. RT - Timing resistor connection
8. CT - Timing capacitor connection
9. FB - Feedback pin for output voltage regulation
10. OUT - Power stage output
11. VREF - Reference voltage output
12. UVLO - Under-voltage lockout
13. OVP - Overvoltage protection
14. SD - Shutdown pin
15. NC - No connection
16. NC - No connection

Functional Features

• Power factor correction
• Voltage regulation
• Current sensing and control
• Overvoltage protection
• Thermal shutdown protection

Advantages and Disadvantages

Advantages

• High efficiency improves overall system performance
• Low harmonic distortion reduces stress on electrical components
• Wide input voltage range allows for versatile applications
• Overvoltage protection safeguards against voltage spikes
• Thermal shutdown protection prevents overheating

Disadvantages

• Limited maximum output power of 150W
• Requires external timing resistor and capacitor for operation

Working Principles

MIC38HC42BN operates based on the principle of active power factor correction. It utilizes a boost converter topology to regulate the input current waveform, aligning it with the input voltage waveform. This results in improved power factor and reduced harmonic distortion.

The integrated circuit incorporates an error amplifier, which compares the feedback voltage with a reference voltage to generate an error signal. This error signal is then used to control the duty cycle of the power stage, adjusting the output voltage accordingly.

Detailed Application Field Plans

MIC38HC42BN finds extensive application in various power factor correction systems, including:

1. Switched-mode power supplies (SMPS)
2. LED lighting systems
3. Motor drives
4. Industrial equipment
5. Renewable energy systems

Detailed and Complete Alternative Models

1. MIC38HC43BN - Similar functionality with additional features
2. MIC38HC41BN - Lower power rating but similar performance characteristics
3. MIC38HC44BN - Higher power rating with enhanced protection features

These alternative models provide options based on specific requirements and system constraints.

In conclusion, MIC38HC42BN is a highly efficient integrated circuit designed for power factor correction applications. Its ability to improve power factor, reduce harmonic distortion, and provide protection features make it suitable for a wide range of applications in various industries.