12-Channel LED Driver from Diodes Incorporated Enables Superior Performance for Digital Signage and Displays

Rhea-AI Summary

Diodes Incorporated (Nasdaq: DIOD) has introduced the AL58221, a new 12-channel constant-current LED driver. This device features 12 open-drain outputs rated at 24V, sinking up to 60mA of high-accuracy current with a fast transient response. Key features include:

- Channel-to-channel LED current accuracy: typically ±1%
- Regulated output current tolerance: ±0.1%
- Operating input range: 3V to 5.5V
- Uses adaptive pulse density modulation (APDM) for enhanced performance
- 10MHz double-edge triggered data clock input for reduced EMI
- Two-wire serial interface for grayscale data and configuration

The AL58221 is priced at $0.37 in 1,000-piece quantities and is suitable for various applications including LED video signage, displays, and LCD backlighting.

Positive

• Introduction of a new 12-channel LED driver (AL58221) with high accuracy and performance
• Versatile applications in LED signage, displays, and backlighting
• High channel-to-channel LED current accuracy (±1%) and regulated output current tolerance (±0.1%)
• Competitive pricing at $0.37 per unit in 1,000-piece quantities

Negative

• None.

Tech Expert

The AL58221 LED driver represents a significant advancement in display technology. Its high-accuracy current control (±1% channel-to-channel, ±0.1% output tolerance) ensures exceptional color consistency across large displays. The adaptive pulse density modulation (APDM) is a standout feature, effectively reducing flicker and EMI while enabling impressive refresh rates of >1,000Hz at 16-bit and >256kHz at 8-bit grayscale.

The driver's versatility is noteworthy, supporting both 3V to 5.5V input and up to 24V output, making it suitable for various display applications. The ability to cascade up to 1,030 devices via the two-wire serial interface is particularly valuable for large-scale installations. However, the relatively low current capacity of 60mA per channel might limit its use in high-brightness applications.

Market Research Analyst

Diodes Inc.'s new LED driver aligns well with the growing digital signage market, projected to reach $29.8 billion by 2024. The AL58221's features cater to the increasing demand for high-quality, energy-efficient displays in retail, transportation and smart city applications. Its compatibility with both indoor and outdoor signage positions Diodes Inc. to capture a significant market share.

The competitive pricing ($0.37 per unit in 1,000-piece quantities) and the availability of a higher-channel variant (AL58263) demonstrate a strategic approach to different market segments. However, potential supply chain disruptions and increasing competition in the semiconductor industry could pose challenges to Diodes Inc.'s market penetration efforts with this product line.

Financial Analyst

While this product launch is positive for Diodes Inc., its immediate financial impact may be The LED driver market, though growing, represents only a fraction of the company's diversified portfolio. In FY2022, Diodes reported revenue of $2.0 billion, with industrial and automotive segments as key growth drivers.

The competitive pricing of the AL58221 ($0.37) and AL58263 ($0.47) suggests a focus on volume sales rather than high margins. This strategy could drive market share growth but may pressure profitability in the short term. Investors should monitor the adoption rate of these new products and their contribution to the company's industrial segment performance in upcoming quarterly reports.

PLANO, Texas--(BUSINESS WIRE)-- Diodes Incorporated (Diodes) (Nasdaq: DIOD) today introduces a new 12-channel, constant-current LED driver, the AL58221. It features 12 open-drain outputs that are rated to 24V and sink up to 60mA of high-accuracy current with a fast transient response. The channel-to-channel LED current accuracy is typically ±1% and the regulated output current tolerance is ±0.1%.

Operating over a 3V to 5.5V input, the driver uses adaptive pulse density modulation (APDM) to help mitigate non-ideal I_OUT distortion and enhance visual refresh rates for enhanced performance. It can be used for indoor and outdoor LED video signage and displays, variable messaging signs (VMS), architectural and decorative LED lighting systems, and LCD backlighting.

The AL58221’s LED current is set by three external resistors (for RGB master setting), with each channel’s average output current being programmed independently via its digital interface. It features a 10MHz double-edge triggered data clock input that reduces EMI. The device’s two-wire serial interface sends grayscale data to the function-control registers that store the configuration information. It controls grayscale resolution and clock frequency, current output waveform selection, and internal-latch function.

The driver uses APDM to increase the visual refresh rate of >1,000Hz at 16-bit and >256kHz at 8-bit grayscale. This technique reduces flicker and provides output-current bilateral processing for EMI reduction. The AL58221 uses a clock duty recovery technique with pulse retiming to support a longer distance connection. Its two-wire serial interface also enables cascading applications for up to 1,030 devices.

Within the same LED driver family, the recently introduced AL58263 is a 16-channel device with 16-bit PWM grayscale dimming control for higher resolution and larger display panel applications.

The AL58221 and AL58263 are available in the thermally enhanced TSSOP-24EP (Type A1-B) package at $0.37 and $0.47 respectively in 1,000-piece quantities.

About Diodes Incorporated

Diodes Incorporated (Nasdaq: DIOD), a Standard and Poor’s SmallCap 600 and Russell 3000 Index company, delivers high-quality semiconductor products to the world’s leading companies in the automotive, industrial, computing, consumer electronics, and communications markets. We leverage our expanded product portfolio of analog and discrete power solutions combined with leading-edge packaging technology to meet customers’ needs. Our broad range of application-specific products and solutions-focused sales, coupled with global operations including engineering, testing, manufacturing, and customer service, enable us to be a premier provider for high-volume, high-growth markets. For more information, visit www.diodes.com.

The Diodes logo is a registered trademark of Diodes Incorporated in the United States and other countries.

All other trademarks are the property of their respective owners.

© 2024 Diodes Incorporated. All Rights Reserved.

View source version on businesswire.com: https://www.businesswire.com/news/home/20240829902901/en/

Gurmeet Dhaliwal

Director, Investor Relations & Corporate Marketing

Diodes Incorporated

+1 408-232-9003

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Source: Diodes Incorporated (P)

FAQ

What are the key features of Diodes Incorporated's new AL58221 LED driver?

The AL58221 is a 12-channel constant-current LED driver with 24V-rated open-drain outputs, 60mA current sink capability, ±1% channel-to-channel accuracy, ±0.1% regulated output current tolerance, and adaptive pulse density modulation for enhanced performance.

What applications is the AL58221 LED driver from Diodes (DIOD) suitable for?

The AL58221 is suitable for indoor and outdoor LED video signage and displays, variable messaging signs (VMS), architectural and decorative LED lighting systems, and LCD backlighting.

How does the AL58221 LED driver from Diodes (DIOD) reduce EMI?

The AL58221 features a 10MHz double-edge triggered data clock input and uses adaptive pulse density modulation (APDM) with output-current bilateral processing to reduce EMI.

What is the pricing for Diodes Incorporated's (DIOD) new AL58221 LED driver?

The AL58221 LED driver is priced at $0.37 in 1,000-piece quantities.