Self-Excitation Piezo Sounder Driver from Diodes Incorporated Extends Runtime and Maintains High SPL Output Across Entire Battery Life

Rhea-AI Summary

Diodes Incorporated (Nasdaq: DIOD) has launched the PAM8906 driver IC designed for enhanced output in piezoelectric sounders. This innovative device incorporates a synchronous boost converter, which enables higher sound pressure levels (SPL) for extended audio reach in various applications, including alarms and medical devices. The PAM8906 supports both external PWM input and self-excitation mode, providing flexibility. It features three output voltage variants and maintains performance even with declining battery voltage. Priced at $0.37 in bulk orders, the PAM8906 comes in a compact 10-pin MSOP package, highlighting Diodes’ commitment to advancing semiconductor technology in high-growth markets.

Positive

• Launch of PAM8906 driver IC enhances output for piezoelectric sounders.
• Integrated synchronous boost converter allows higher sound pressure levels (SPL).
• Supports both external PWM input and self-excitation mode for application flexibility.
• Three output voltage variants (20V PP, 24V PP, 36V PP) cater to diverse needs.
• Low quiescent current (<1µA) and automated shutdown feature improve battery efficiency.
• Compact 10-pin MSOP package reduces board space and BOM requirements.

Negative

• None.

PLANO, Texas--(BUSINESS WIRE)-- Diodes Incorporated (Diodes) (Nasdaq: DIOD) is introducing a new driver IC to address the need for increased output from piezoelectric sounders. Featuring an integrated synchronous boost converter, the DIODES PAM8906 enables higher sound pressure levels (SPL), allowing sound to be carried over larger distances. This driver also integrates functionality that prolongs its battery-powered operation. Key applications for the device include smoke/gas/water alarms, air humidifiers, handheld GPS devices, industrial security alarms, medical devices, and home appliances.

The PAM8906 operates with either external pulse-width modulation (PWM) input or in self-excitation mode, whereas other solutions will generally only support one or the other. This provides greater application flexibility and allows support for an increased variety of sounders.

Its boost converter, using a small 0.47µH inductor, switches at a fixed 1.8MHz frequency. This presents engineers with a solution that takes up significantly less board space and has a reduced bill of materials (BOM). It has a low quiescent current (<1µA), and an automatic shutdown/wake-up that helps extend operational lifespan in battery-powered applications.

The PAM8906 has three output voltage variants: 20V_PP, 24V_PP, and 36V_PP. This enables the creation of different output versions of the same system. Unlike charge pump-based alternatives, this device maintains its output even as battery voltage drops over time.

The PAM8906 sounder driver from Diodes is supplied in a 10-pin MSOP package and is available at $0.37 each 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 discrete, analog, and mixed-signal products and leading-edge packaging technology to meet customers’ needs. Our broad range of application-specific solutions and solutions-focused sales, coupled with worldwide operations of 32 sites, including engineering, testing, manufacturing, and customer service, enables 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.

© 2023 Diodes Incorporated. All Rights Reserved

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Company Contact:

Diodes Incorporated

Emily Yang

SVP, Worldwide Sales and Marketing

P: 972-987-3900

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Investor Relations Contact:

Shelton Group

Leanne K. Sievers

President

P: 949-224-3874

E: lsievers@sheltongroup.com

Source: Diodes Incorporated (P)

FAQ

What is the PAM8906 driver IC launched by Diodes?

The PAM8906 is a driver IC designed for piezoelectric sounders, featuring an integrated synchronous boost converter for higher sound pressure levels and increased battery efficiency.

What applications can the PAM8906 driver IC be used for?

The PAM8906 is suitable for smoke/gas/water alarms, air humidifiers, handheld GPS devices, industrial security alarms, medical devices, and home appliances.

What are the key features of the PAM8906 driver IC?

Key features include support for both external PWM input and self-excitation mode, three output voltage variants, and low power consumption with an automatic shutdown feature.

What is the price of the PAM8906 driver IC?

The PAM8906 is priced at $0.37 per unit in quantities of 1,000.

How does the PAM8906 maintain output performance?

Unlike charge pump-based alternatives, the PAM8906 maintains its output even as the battery voltage drops over time.