HV9971LG-G

Product Overview

• Category: Integrated Circuit (IC)
• Use: LED Driver
• Characteristics: High Voltage, Low Power Consumption
• Package: SOP-8 (Small Outline Package)
• Essence: Efficient and Reliable LED Driver
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 10V to 450V
• Output Current Range: 100mA to 1.5A
• Operating Frequency: 50kHz to 1MHz
• Efficiency: Up to 95%
• Dimming Control: Analog/PWM
• Protection Features: Overvoltage, Overcurrent, Overtemperature

Detailed Pin Configuration

The HV9971LG-G IC has the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. FB: Feedback pin for regulating output current
4. DIM: Dimming control input
5. CS: Current sense input
6. OUT: Output voltage
7. SW: Switching node connection
8. NC: No connection

Functional Features

• High voltage capability allows driving LEDs directly from AC mains
• Low power consumption ensures energy efficiency
• Wide input voltage range enables compatibility with various power sources
• Adjustable dimming control for brightness adjustment
• Built-in protection features ensure safe operation

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power consumption - Compact SOP-8 package saves board space - Wide input voltage range provides flexibility in application - Excellent dimming control options for precise lighting control

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

Working Principles

The HV9971LG-G is a constant current LED driver IC that operates by converting high voltage AC input to a regulated DC output suitable for driving LEDs. It utilizes a flyback topology with a built-in power MOSFET and control circuitry. The IC regulates the output current by adjusting the duty cycle of the switching waveform based on the feedback received from the FB pin.

Detailed Application Field Plans

The HV9971LG-G LED driver IC is widely used in various lighting applications, including:

1. Residential Lighting: Used in LED bulbs, downlights, and ceiling lights for energy-efficient illumination.
2. Commercial Lighting: Applied in office spaces, retail stores, and hotels for efficient and long-lasting lighting solutions.
3. Street Lighting: Utilized in outdoor streetlights to provide reliable and low-maintenance lighting.
4. Automotive Lighting: Integrated into automotive headlights, taillights, and interior lighting for improved visibility and energy efficiency.

Detailed and Complete Alternative Models

1. HV9970LG-G: Similar to HV9971LG-G but with a lower output current range (50mA to 1A).
2. HV9972LG-G: Similar to HV9971LG-G but with a higher output current range (100mA to 2A).
3. HV9973LG-G: Similar to HV9971LG-G but with additional protection features like short-circuit protection.

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