HV9912NG-G

Product Overview

Category

HV9912NG-G belongs to the category of integrated circuits (ICs) used in power management applications.

Use

This IC is specifically designed for driving high-brightness LEDs (Light Emitting Diodes) efficiently and effectively.

Characteristics

• High efficiency: The HV9912NG-G offers high efficiency in LED driving applications, resulting in reduced power consumption.
• Wide input voltage range: It can operate with a wide input voltage range, making it suitable for various power supply configurations.
• Adjustable output current: The IC allows for adjustable output current, enabling precise control over LED brightness.
• Protection features: It incorporates protection features such as over-temperature and over-voltage protection, ensuring safe operation.

Package

The HV9912NG-G is available in a compact and industry-standard package, making it easy to integrate into different electronic systems.

Essence

The essence of HV9912NG-G lies in its ability to efficiently drive high-brightness LEDs while providing flexibility and protection features.

Packaging/Quantity

The IC is typically packaged in reels or tubes, with a standard quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 8V to 450V
• Output Current Range: 100mA to 1.5A
• Operating Temperature Range: -40°C to +85°C
• Package Type: DIP-8, SOIC-8

Pin Configuration

The HV9912NG-G has the following pin configuration:

Pin 1: VCC Pin 2: GND Pin 3: FB (Feedback) Pin 4: EN (Enable) Pin 5: DIM (Dimming) Pin 6: CS (Current Sense) Pin 7: SW (Switch) Pin 8: VDD

Functional Features

• Constant current control: The IC provides precise constant current control for driving high-brightness LEDs, ensuring consistent brightness levels.
• Dimming control: It supports dimming control through the DIM pin, allowing for adjustable LED brightness.
• Over-temperature protection: The HV9912NG-G incorporates over-temperature protection, preventing damage to the IC and LEDs during excessive heat conditions.
• Over-voltage protection: It includes over-voltage protection, safeguarding the LEDs from potential voltage spikes.

Advantages and Disadvantages

Advantages

• High efficiency, resulting in reduced power consumption.
• Wide input voltage range, suitable for various power supply configurations.
• Adjustable output current, enabling precise control over LED brightness.
• Protection features ensure safe operation.

Disadvantages

• Limited output current range may not be suitable for high-power LED applications.
• Requires external components for proper operation.

Working Principles

The HV9912NG-G operates on the principle of pulse width modulation (PWM) control. It regulates the LED current by adjusting the duty cycle of the PWM signal. This allows for precise control over LED brightness while maintaining high efficiency.

Detailed Application Field Plans

The HV9912NG-G is widely used in various lighting applications, including:

1. General lighting: It can be used in residential and commercial lighting fixtures to drive high-brightness LEDs efficiently.
2. Automotive lighting: The IC finds application in automotive lighting systems, providing efficient LED driving solutions for headlights, taillights, and interior lighting.
3. Display backlighting: It is suitable for driving LEDs used in display backlighting, such as LCD monitors, televisions, and signage.
4. Street lighting: The HV9912NG-G can be employed in street lighting systems, offering energy-efficient LED driving capabilities for enhanced illumination.

Detailed and Complete Alternative Models

1. HV9910BNG-G: Similar to HV9912NG-G, this IC is designed for high-brightness LED driving applications but offers a different set of specifications and features.
2. LT3799: This IC provides similar functionality to the HV9912NG-G and is widely used in LED driver applications.
3. LM3409: Another alternative model suitable for driving high-brightness LEDs with adjustable current control.

In conclusion, the HV9912NG-G is an integrated circuit designed for efficient and precise driving of high-brightness LEDs. With its wide input voltage range, adjustable output current, and protection features, it finds application in various lighting systems. Alternative models such as HV9910BNG-G, LT3799, and LM3409 offer similar functionality and can be considered based on specific requirements.