Datasheet Summary
Piezo-sounder Driver with Multi-mode charge pump
- GENERAL DESCRIPTION The NJU72501 is a switching driver with multi mode charge pump for piezo-sounder. It can drive outputs up to 18Vpp from 3V supply. For adjusting the piezoelectric sounder sound volume, the charge pump can operate in either of a 1x, 2x or 3x mode.
Because NJU72501 has the shutdown function, it is suitable for the battery application.
- PACKAGE OUTLINE NJU72501MJE NJU72501MG2
- APPLICATION Healthcare, Wrist Watches, Alarm Clocks, Handheld GPS devices, PDAs
- Features
- Operating Voltage
: 2.3 to 5.0V(1x/ 2x Mode), 2.3 to 3.4V(3x Mode)
- Consumption current (Active) : IDS=0.3mA typ. (VIN=3V, DIN=4kHz,...