Microchip Technology
Gambar mungkin merupakan representasi.
Lihat spesifikasi untuk detail produk.
HV9919BK7-G
Lihat Detail Lembar Data

HV9919BK7-G

Product Overview

Category

HV9919BK7-G belongs to the category of integrated circuits (ICs) used in lighting applications.

Use

This product is specifically designed for driving high-brightness LEDs (Light Emitting Diodes) in various lighting systems.

Characteristics

  • High efficiency: The HV9919BK7-G offers excellent power conversion efficiency, ensuring minimal energy loss during operation.
  • Wide input voltage range: It can accommodate a wide range of input voltages, making it suitable for different power supply configurations.
  • Dimming control: This IC provides dimming control options, allowing users to adjust the brightness of the LEDs as per their requirements.
  • Protection features: The HV9919BK7-G incorporates various protection mechanisms such as over-temperature protection and over-current protection, ensuring safe and reliable operation.

Package

The HV9919BK7-G is available in a compact and industry-standard SOP-7 package, which facilitates easy integration into lighting system designs.

Essence

The essence of HV9919BK7-G lies in its ability to efficiently drive high-brightness LEDs, enabling the creation of energy-efficient lighting solutions.

Packaging/Quantity

This product is typically supplied in reels containing a specified quantity of HV9919BK7-G ICs. The exact quantity may vary depending on the supplier.

Specifications

  • Input Voltage Range: 8V to 450V
  • Output Current Range: 100mA to 1.5A
  • Operating Temperature Range: -40°C to +85°C
  • Dimming Control: Analog/PWM
  • Efficiency: Up to 95%
  • Package Type: SOP-7

Detailed Pin Configuration

The HV9919BK7-G IC has the following pin configuration:

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. CS: Current sense pin
  4. DIM: Dimming control pin
  5. FB: Feedback pin
  6. SW: Switching pin
  7. VCC: Power supply pin

Functional Features

  • High-efficiency LED driver
  • Wide input voltage range for versatile applications
  • Dimming control options for brightness adjustment
  • Over-temperature and over-current protection mechanisms ensure safety

Advantages and Disadvantages

Advantages

  • High power conversion efficiency
  • Wide input voltage range allows flexibility in power supply configurations
  • Dimming control enables customized lighting solutions
  • Integrated protection features enhance reliability

Disadvantages

  • Limited output current range may not be suitable for high-power LED applications
  • Requires external components for complete circuit implementation

Working Principles

The HV9919BK7-G operates as a constant current LED driver. It regulates the LED current by adjusting the duty cycle of the internal switching transistor. The feedback mechanism ensures that the desired current is maintained, while the dimming control feature allows users to adjust the brightness level.

Detailed Application Field Plans

The HV9919BK7-G is widely used in various lighting applications, including: - Residential lighting - Commercial lighting - Automotive lighting - Industrial lighting - Street lighting

Detailed and Complete Alternative Models

  1. HV9919B: Similar to HV9919BK7-G but available in a different package (DIP-8).
  2. HV9919C: Upgraded version with additional protection features and wider input voltage range.
  3. HV9919BK7-GS: Enhanced version with extended temperature range for harsh environments.

These alternative models offer similar functionality and can be considered based on specific design requirements.

Word count: 511 words

Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan HV9919BK7-G dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of HV9919BK7-G in technical solutions:

  1. Q: What is HV9919BK7-G? A: HV9919BK7-G is a high-efficiency LED driver IC designed for driving LEDs in general lighting applications.

  2. Q: What is the input voltage range supported by HV9919BK7-G? A: HV9919BK7-G supports an input voltage range from 4.5V to 450V.

  3. Q: What is the maximum output current that HV9919BK7-G can handle? A: HV9919BK7-G can handle a maximum output current of 1.5A.

  4. Q: Can HV9919BK7-G be used for dimming LED lights? A: Yes, HV9919BK7-G supports analog dimming control using a PWM signal.

  5. Q: Is HV9919BK7-G suitable for both AC and DC input applications? A: Yes, HV9919BK7-G can be used in both AC and DC input applications.

  6. Q: Does HV9919BK7-G have built-in protection features? A: Yes, HV9919BK7-G includes over-temperature protection (OTP) and over-voltage protection (OVP) features.

  7. Q: Can HV9919BK7-G operate in a wide temperature range? A: Yes, HV9919BK7-G has a wide operating temperature range from -40°C to +125°C.

  8. Q: What type of LED configurations does HV9919BK7-G support? A: HV9919BK7-G supports both series and parallel LED configurations.

  9. Q: Does HV9919BK7-G require an external MOSFET for LED driving? A: Yes, HV9919BK7-G requires an external N-channel MOSFET for LED driving.

  10. Q: What is the typical efficiency of HV9919BK7-G? A: The typical efficiency of HV9919BK7-G is around 90% when driving LEDs.

Please note that these answers are based on general information and it's always recommended to refer to the datasheet and application notes for specific details and guidelines related to the HV9919BK7-G IC.