HV9925SG-G

Product Overview

Category

HV9925SG-G belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for driving high-power LEDs in various lighting applications.

Characteristics

• High efficiency and low power consumption
• Wide input voltage range
• Adjustable output current
• Over-temperature protection
• Short-circuit protection

Package

HV9925SG-G is available in a compact SOP-8 package.

Essence

The essence of HV9925SG-G lies in its ability to efficiently drive high-power LEDs, ensuring optimal performance and longevity.

Packaging/Quantity

This product is typically packaged in reels containing 2500 units.

Specifications

• Input Voltage Range: 9V to 30V
• Output Current Range: 100mA to 1.5A
• Operating Temperature Range: -40°C to +85°C
• Dimming Control: PWM or analog dimming
• Efficiency: Up to 95%
• Switching Frequency: 200kHz

Detailed Pin Configuration

1. VIN: Input voltage
2. GND: Ground
3. CS: Current sense input
4. DIM: Dimming control input
5. VCC: Power supply for internal circuitry
6. FB: Feedback pin for regulating output current
7. OUT: Output to LED load
8. NC: No connection

Functional Features

• Constant current output regulation
• Wide input voltage range allows for versatile applications
• Dimming control options for brightness adjustment
• Over-temperature and short-circuit protection ensure safety and reliability

Advantages and Disadvantages

Advantages

• High efficiency leads to energy savings
• Wide input voltage range enables compatibility with various power sources
• Adjustable output current allows for flexibility in LED selection
• Over-temperature and short-circuit protection enhance product durability

Disadvantages

• Limited output current range may not be suitable for extremely high-power LED applications
• Requires external dimming control circuitry for analog dimming

Working Principles

HV9925SG-G operates on the principle of pulse width modulation (PWM) to regulate the output current. It senses the current flowing through the LEDs and adjusts the duty cycle of the PWM signal accordingly to maintain a constant current.

Detailed Application Field Plans

HV9925SG-G finds extensive application in the following fields:

1. General lighting: Used in residential, commercial, and industrial lighting fixtures.
2. Automotive lighting: Suitable for driving high-power LEDs in automotive headlights, taillights, and interior lighting.
3. Display backlighting: Enables efficient and precise control of LED backlighting in LCD displays.
4. Outdoor lighting: Ideal for streetlights, floodlights, and landscape lighting.

Detailed and Complete Alternative Models

1. HV9910B: Similar functionality with a different pin configuration.
2. LT3799: Offers higher output current capability and additional features like fault protection.
3. LM3409: Provides a wide input voltage range and integrated dimming control.

(Note: This list is not exhaustive and other alternative models may exist.)

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