PAM8904：音频
| Part Number | Data Sheet | SPICE Model | VDD (V) | IQ (mA) | Efficiency (%) | Volume/ Gain | Gain Min (dB) | Gain Max (dB) | SNR (dB) | PSRR (dB) |
|---|---|---|---|---|---|---|---|---|---|---|
| PAM8904 | PAM8904.pdf | - | 2.3 to 5.0 | 1 | - | Three Step | 1 | 3 | - | - |
Description
The PAM8904 is a piezo sounder driver with integrated a charge pump boost converter. The PAM8904 is capable for driving a ceramic/piezo sounder with 18Vpp from a 3V power supply. The charge pump can operate in either of a 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. The PAM8904 can drive up to 15nF loading. PAM unique drive technology provides small inrush current, low EMI and high efficiency.
PAM8904 built-in automatic shutdown and wake up that guarantees longer battery life.
PAM8904 features thermal shutdown, over current protection, over voltage protection and under voltage lock-out.
The PAM8904 is available in a 16pin U-QFN3030 package.
Application
- Health Care System
- Alarm Clock
- Security Device
- Home Appliance
Features
- Supply voltage Range From 2.3V to 5.5V
- 18VPP Output from a 3V Supply
- Integrated Boost Converter Generates 9V Supply
- Input signal 20 Hz to 300KHz
- No Voltage Cross Output At Shutdown Mode
- Low Current Consumption
- Automatic Standby and Wake-up Control
- Available in Space Saving Packages 16pin QFN package
订购型号
- PAM8904JER
- PAM8904QJER
U-QFN3030-16
- PAM8904.pdf PAM8904
