مدار مجتمع (آی سی) آی سی‌کاربرد ویژه

Product Attributes

Introduction

PAM8904Q is a piezoelectric sounder driver designed to drive ceramic/piezoelectric sounders or speakers at an 18VPP output from a 3V supply. A programmable charge pump boost converter enables the PAM8904Q VOUT to operate in 1×, 2×, and 3× modes. The boost converter operates at a fixed frequency of 1.0MHz, delivering a 9V output with minimal external components. PAM's unique drive technology ensures minimum inrush current, low EMI, and high efficiency. To maximize efficiency and battery life, the PAM8904Q includes an automatic standby function that puts the device into sleep mode when no valid input signal is present. A forced shutdown function is also provided to enable the IC only when needed. To protect the IC and system, the PAM8904Q includes over-temperature shutdown, overcurrent, and short-circuit protection. The PAM8904Q is available in a 16-pin U-QFN3030-16 (Type B) package. The PAM8904Q is AEC-Q100 Grade 2 compliant, meeting automotive requirements and supporting the Production Part Approval Process (PPAP).

Features

• Supply voltage range: 2.3V to 5V
• 18VPP output from 3V supply
• Integrated boost converter generates 9V supply
• Wide input signal capability: 20Hz to 300kHz
• Low current consumption
• Automatic standby and wake-up control
• Over-temperature shutdown and short-circuit protection
• Space-saving 16-pin U-QFN3030-16 (Type B) green package
• Fully lead-free and fully RoHS compliant
• Halogen- and antimony-free "green" device
• PAM8904Q is suited for automotive applications requiring specific change control; compliant with AEC-Q100, PPAP-capable, and manufactured in an IATF 16949-certified facility

Applications

• Automotive alarms
• Dashboard audio
• GPS
• Electric vehicle proximity warning
• Automotive safety equipment