PAM8904JPR

The Diodes Incorporated PAM8904JPR is a specialized integrated circuit designed as a piezo sounder driver. It features an integrated charge pump boost converter, enabling it to drive ceramic or piezo sounders with up to 24VPP from a 5.5V power supply. The charge pump supports 1x, 2x, or 3x modes, and the boost converter operates at a fixed 1.0MHz frequency to provide a 12V output with minimal external components.

Key electrical specifications include a supply voltage range of 1.8V to 5.5V, with an 18VPP output achievable from a 3V supply. The device can drive up to 15nF loading and has an output current capability of 40mA. It consumes a low operating supply current of 7.9mA and offers a gain of 1dB. The PAM8904JPR includes built-in automatic shutdown and wake-up features to conserve battery life, along with thermal shutdown, over-current protection, over-voltage protection, and undervoltage lock-out.

This component is available in space-saving packages, including the U-QFN3030-12 (Type A). It is suitable for applications in health care systems, alarm clocks, security devices, and home appliances. The device is RoHS3 compliant, lead-free, and halogen-free, making it a green choice for various electronic designs.