22VPP/31VPP Selectable Output Piezo Sounder Driver from Diodes Incorporated Drives Higher SPL and Longer Runtimes

Rhea-AI Summary

Diodes Incorporated (Nasdaq: DIOD) has launched the PAM8907 piezoelectric sounder driver, designed to enhance sound pressure levels in battery-operated systems. The driver features a synchronous boost converter that improves performance, with selectable output voltages of 22V_PP or 31V_PP. It supports a 1.8V to 5.5V input range and includes functions for automatic shutdown, thermal protection, and operational safety. The PAM8907 is available in a compact 10-pin U-QFN2020 package, with a unit cost of $0.43 for large orders.

Positive

• Launch of PAM8907 sounder driver enhances audio performance.
• Built-in synchronous boost converter improves sound pressure levels.
• Cost-effective with low BOM and small footprint.
• Multiple output options (22V_PP or 31V_PP) cater to varied applications.

Negative

• None.

Diodes Incorporated (Nasdaq: DIOD) introduces the PAM8907 piezoelectric sounder driver, for maximizing sound pressure level (SPL) delivery from a ceramic/piezo sounder. The PAM8907 has a built-in synchronous boost converter, which extends SPL in battery-powered systems and outperforms other similar sounder drivers. The device is optimized for use in wireless trackers, industrial alarm systems, medical equipment, and domestic appliances.

The wide 1.8V to 5.5V input voltage range supported by the PAM8907 sounder driver enables it to address a broad variety of potential applications. A 22V_PP or 31V_PP output value can be selected (using the GPIO), thereby providing two different SPL options which allow optimized performance for SPL or battery runtime. Its integrated boost converter requires only a 1.0µH external inductor which helps reduce the bill-of-materials costs and board space.

Automatic shutdown and wake-up functions help to further extend the PAM8907 sounder driver’s runtime when incorporated into battery-powered systems, with less than 1μA of current drawn in shutdown mode. Thermal shutdown, overcurrent, and overvoltage protection, plus undervoltage lockout mechanisms, are included to ensure reliable operation. The product operates across a -40°C to +125°C ambient temperature range.

The PAM8907 piezoelectric sounder driver is supplied in the compact 10-pin U-QFN2020 package delivering a minimal footprint. It has a unit cost of $0.43 in 3000 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 consumer electronics, computing, communications, industrial, and automotive 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 31 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.

View source version on businesswire.com: https://www.businesswire.com/news/home/20210810005038/en/

FAQ

What is the PAM8907 released by Diodes Incorporated?

The PAM8907 is a piezoelectric sounder driver designed to enhance sound pressure levels in various applications.

What are the key features of the PAM8907 sounder driver?

It features a synchronous boost converter, selectable output voltages, automatic shutdown, thermal protection, and operates across a wide voltage range.

What is the cost of the PAM8907 piezoelectric sounder driver?

The unit cost of the PAM8907 is $0.43 when purchased in quantities of 3000.

What applications are suitable for the PAM8907 driver?

The PAM8907 is optimized for use in wireless trackers, industrial alarm systems, medical equipment, and domestic appliances.