PAM8904EJER

PAM8904E 18VPP OUTPUT PIEZO SOUNDER DRIVER Description Pin Assignments The PAM8904E is a piezo sounder driver with integrated charge pump boost converter. The PAM8904E is capable of driving a ceramic/piezo sounder with 27VPP from a 4.5V power supply. The (Top View) 16 The boost converter operates at a fixed frequency of 100kHz and provides a 3X VIN output with a minimum number of external NEW PRODUCT NC VIN CP2 VOUT Pin 1 charge pump can operate in either 1x, 2x or 3x mode. components. The PAM8904E can drive up to 47nF loading. Diodes Incorporated’s unique drive technology provides a small inrush current, low EMI and high efficiency. 1 12 NC 2 11 CP1 DIN 3 10 CN2 NC 4 9 VO1 Integrated Boost Converter Generates up to 13.5V Supply Input Signal 20Hz to 300kHz No Voltage Cross Output at Shutdown Mode Low Current Consumption Automatic Standby and Wake-up Control Available in Space Saving Packages U-QFN3030-16 (Type B), U-QFN3030-12 (Type A) and W-QFN2020-12 (Type US) Packages Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3)   Notes: 6 8 7 CN1 GND VO2 NC U-QFN3030-16 (Type B) (Top View) VIN CP2 VOUT Pin 1 12 Features       13 EN2 5 The PAM8904E is available in U-QFN3030-16 (Type B), U-QFN303012 (Type A) and W-QFN2020-12 (Type US) packages. Supply Voltage Range from 1.5V to 5.5V 18VPP Output from a 3V Supply 14 EN1 The PAM8904E includes built-in automatic shutdown and wake up that guarantees longer battery life. The PAM8904E features thermal shutdown, over current protection, over voltage protection and under voltage lock-out.   15 11 10 EN1 1 9 CP1 EN2 2 8 CN2 DIN 3 7 VO1 4 5 6 CN1 GND VO2 U-QFN3030-12 (Type A)/W-QFN2020-12 (Type US) Applications     Health Care Systems Alarm Clocks Security Devices Home Appliances 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain