The PAM8904 is a 1X/2X/3X Piezo Driver capabable of 1X/2X/3X Boost modes with an input of 1.8-5.5V. The smPWR-PAM8904 provides a micro-sized breakout board measuring 20.4×12.7mm for the PAM8904 and provides jumper pin selections for the 1X/2X/3X modes and oversized solder pads for connecting a piezo speaker/buzzer. Additionally the device has excellent built in features such as Automatic Standby Operation and Wake-Up-Control.
PAM8904 1X/2X/3X Boost Piezo Driver
$5.03 – $5.59
124 in stock (can be backordered)
smPWR-PAM8904 Documents
Datasheet/Schematics
PAM8904 Schematic Symbol/Footprint
Discount per Quantity
| Quantity | 1 | 2 - 5 | 6 - 10 | 11 - 15 | 16 - 35 | 35 + |
|---|---|---|---|---|---|---|
| Discount | 0% | 3% | 5% | 8% | 10% | 10% |
| Price | $5.59 | $5.42 | $5.31 | $5.14 | $5.03 | $5.03 |
124 in stock (can be backordered)
Description
Features:
- 1X, 2X, 3X Selectable Boost Mode
- 1MHz Boost Converter Operation
- 18Vpp from 3.3Vin / 24Vpp from 5.5Vin
- Automatic Standby and Wake-Up Control
- Only 4 External Caps Required
- Vin = 1.8-5.5V / 4kHz Fin Typical
- Differential or Single-Ended Operation
- Micro-Size Eval Board(12.7×20.4mm)
- 54mm(0.1”) headers on 17.78mm(0.7”) spacing
- Low Power Consumption
- 50uA @ 1X / 720uA @ 2X / 1.7mA @ 3X No Load
- 1uA Sleep
Why?
Sensor Maestros developed the smPWR-PAM8904 breakout board out of a necessity. There were several products that we had developed that utilized Piezo buzzers or some sort of piezo speaker. It is very difficult to get ear-piercing sound out of a piezo without driving them at voltages >10V. The PAM8904 provides a simple and easy to use DC/DC Boost to easily drive piezo buzzer and/or speakers at much louder SPL levels than a typical 3.3V PWM from a MCU.
Description:
The PAM8904 1X/2X/3X Boost Piezo Driver IC is a selectable Boost Converter that accepts an input voltage ranging from 1.8-5.5V. The Boost converter can produce up to 13.5Vmax or 27Vpp. This is easy to use Boost Converter that can be operated in Differential or Single-Ended output and is intended to drive Piezo speaker that require much larger voltage ranges to get Maximum Sound Pressure Levels in excess of 100dB. It is ideally suited for a 4kHz PWM/Square Wave.
The 1X/2X/3X mode is selectable via EN1 & EN1 pins which can be configured via the on-board jumper selections. Sensor Maestros will provide two 3pin 2.54mm male headers and 2 Shunts to use for this with the smPWR-PAM8904 breakout board. This Boost Piezo driver is capable of driving up to 15nF loads with the DC/DC Boost switching at 1.0MHz and does not require any inductors. To simplify things the PAM8904 only requires 4 external capacitors to provide a complete piezo driver solution all while providing excellent integrated features such as ‘Automatic Standby’ and ‘Wake-Up Control’. The low cost easy to use PAM8904 comes in 3 package options being a 16pin 3x3mm QFN, 12pin 3×3 QFN and a 12pin 2x2mm QFN. Sensor Maestros utilized the 16pin 3×3 QFN on the smPWR-PAM8904 breakout board as this was the most readily available package in the market place at the time.
PAM8904 Information:
PAM8904 Product Page: PAM8904 Product Page
PAM8904 Datasheet: PAM8904 Datasheet
PWM Firmware Examples:
nRF52 Low Power PWM Example: nRF52 Low Power PWM Example
nRF52 PWM Driver Example: nRF52 PWM Driver Example
Additional information
| Weight | 0.01 kg |
|---|---|
| Dimensions | 20 × 13 × 1 mm |