Microchip Technology
画像はイメージの場合もございます。
商品詳細は仕様をご覧ください。
MIC38C43BM
詳細を表示 DataSheets

MIC38C43BM

Product Overview

Category

MIC38C43BM belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

  • High efficiency
  • Low total harmonic distortion (THD)
  • Wide input voltage range
  • Overvoltage protection
  • Overcurrent protection

Package

MIC38C43BM is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of this product lies in its ability to improve power factor and reduce THD in power supply systems.

Packaging/Quantity

MIC38C43BM is typically packaged in reels, with 2500 units per reel.

Specifications

  • Input Voltage Range: 85VAC to 265VAC
  • Output Voltage Range: 400VDC to 800VDC
  • Operating Temperature Range: -40°C to +125°C
  • Maximum Output Current: 2.5A
  • Total Harmonic Distortion: <10%

Detailed Pin Configuration

  1. VCC: Power supply pin
  2. GND: Ground pin
  3. COMP: Compensation pin
  4. CS: Current sense pin
  5. FB: Feedback pin
  6. RT: Timing resistor pin
  7. CT: Timing capacitor pin
  8. OUT: Output pin

Functional Features

  • Power factor correction
  • Constant output voltage regulation
  • Overvoltage and overcurrent protection
  • Soft-start functionality
  • Cycle-by-cycle current limiting

Advantages

  • Improved power factor
  • Reduced total harmonic distortion
  • Wide input voltage range allows for universal compatibility
  • Robust overvoltage and overcurrent protection
  • Efficient power conversion

Disadvantages

  • Relatively high cost compared to traditional power factor correction methods
  • Requires additional external components for proper operation
  • Limited output current capability

Working Principles

MIC38C43BM operates based on the critical conduction mode (CRM) control technique. It utilizes a boost converter topology to achieve power factor correction. The integrated circuit regulates the input current waveform to follow the input voltage waveform, thereby improving power factor and reducing harmonic distortion.

Detailed Application Field Plans

MIC38C43BM finds applications in various fields, including:

  1. Power supplies for consumer electronics
  2. Industrial power systems
  3. Lighting systems
  4. Renewable energy systems
  5. Electric vehicle charging stations

Detailed and Complete Alternative Models

  1. MIC38C44BM: Similar functionality with additional features such as power factor correction control loop compensation.
  2. MIC38C45BM: Higher output current capability with improved efficiency.
  3. MIC38C46BM: Enhanced protection features with built-in fault detection and shutdown mechanisms.

Note: This is not an exhaustive list of alternative models, but provides examples of similar products available in the market.

Word count: 450 words

技術ソリューションにおける MIC38C43BM の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is the operating voltage range of MIC38C43BM?
    - The operating voltage range of MIC38C43BM is 8V to 700V.

  2. Can MIC38C43BM be used in flyback converters?
    - Yes, MIC38C43BM is suitable for use in flyback converters.

  3. What is the maximum duty cycle supported by MIC38C43BM?
    - The maximum duty cycle supported by MIC38C43BM is 70%.

  4. Is MIC38C43BM suitable for LED driver applications?
    - Yes, MIC38C43BM is commonly used in LED driver applications.

  5. What type of protection features does MIC38C43BM offer?
    - MIC38C43BM provides overcurrent protection and thermal shutdown features.

  6. Can MIC38C43BM be used in offline power supplies?
    - Yes, MIC38C43BM is designed for use in offline power supplies.

  7. What is the typical switching frequency range of MIC38C43BM?
    - The typical switching frequency range of MIC38C43BM is 20kHz to 200kHz.

  8. Does MIC38C43BM require an external oscillator?
    - No, MIC38C43BM has an internal oscillator, eliminating the need for an external one.

  9. Is MIC38C43BM compatible with primary-side regulation (PSR) control?
    - Yes, MIC38C43BM is compatible with primary-side regulation control.

  10. What package options are available for MIC38C43BM?
    - MIC38C43BM is available in SOIC-8 and PDIP-8 package options.