PAM8904QJER

PAM8904QJER is a piezo sounder driver designed for driving a ceramic/piezo sounder or speaker with 18VPP from a 3V power supply. A programmable charge pump boost converter allows the PAM8904Q VOUT to operate in 1x, 2x and 3x mode. The boost converter operates at a fixed frequency of 1.0MHz and provides a 9V output with a minimum number of external components. PAM's unique drive technology ensures minimal inrush current, low EMI and high efficiency. To ensure maximum efficiency and battery life, the PAM8904Q includes an auto-standby feature that puts the device in sleep mode while there is no valid input signal. To help protect the IC and system, the PAM8904Q includes overtemperature shutdown, overcurrent and short circuit protection. Applications include automotive alarms, dash board audio, GPS, electric vehicle approach warning, and automotive security device.

• Qualified to AEC-Q100 grade 2 and is automotive compliant supporting PPAPs
• Supply voltage range from 2.3V to 5V
• Integrated boost converter generates 9V supply
• Wide input signal capability 20Hz to 300kHz
• Low current consumption, automatic standby and wake-up control
• Overtemperature shutdown and short-circuit protection
• Shutdown current is 1µA max at DIN = 0V
• Output short-circuit current is 40mA typ
• Operating free-air temperature range from -40 to +105°C
• U-QFN3030-16 (type B) package