PAM8906M1010-13

Overview

The PAM8906M1010-13 is a piezoelectric sounder driver manufactured by Diodes Incorporated, designed for battery-operated alarm and haptic feedback applications. It integrates a boost converter capable of delivering up to 36VPP output across three voltage options (10V, 12V, or 18V). The device operates on a supply voltage range of 2.1V to 5.5V and supports both external PWM input and self-excitation modes. Key electrical characteristics include an operating current of 1.3mA at no load and less than 1μA in shutdown mode. It features thermal shutdown, overcurrent protection, and undervoltage lockout, housed in a space-saving MSOP-10 package.

Feature Summary

• Integrated Boost Converter: Provides optimized solutions with higher Sound Pressure Level (SPL) and lower quiescent current.
• Dual Operation Modes: Supports external PWM input or self-excitation mode (for 10V and 12V versions only).
• Low Power Consumption: Features automatic shutdown and wake-up control with shutdown current < 1μA.
• Comprehensive Protection: Includes thermal shutdown, overcurrent protection, overvoltage protection, and undervoltage lockout.

Applications

• Smoke, gas, or water alarms
• Industrial security alarms
• Air humidifiers and ultrasonic related piezo driver applications
• Haptic feedback systems

Procurement Notes

Verify the specific output voltage configuration required for the application, as the part number suffix indicates the fixed boost output voltage (e.g., '10' for 10V). Confirm that the MSOP-10 package dimensions align with the PCB footprint design. Ensure the selected version supports the intended operation mode, noting that self-excitation is restricted to the 10V and 12V variants.

Selection Notes

Select the appropriate voltage variant based on the piezo sounder requirements: 10V, 12V, or 18V. Note that self-excitation mode is only supported by the 10V and 12V versions; the 18V version requires external PWM input. Consider the maximum piezo loading capacitance (up to 150nF) and ensure the external inductor saturation current rating is sufficient (recommended 2A) for stable boost regulator operation.

Part Context

The PAM8906M1010-13 belongs to the PAM8906 series of piezo sounder drivers from Diodes Incorporated. This series is engineered to replace traditional charge pump solutions by offering higher efficiency and louder output through an integrated boost converter. The 'M10' suffix denotes the MSOP-10 package, while '10' specifies the 10V output voltage option, and '-13' indicates the tape and reel packaging quantity.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. When evaluating alternatives, verify compatibility with the 2.1V to 5.5V supply range, MSOP-10 pinout, and required boost output voltage levels.