NJW4814 Datasheet (New Japan Radio)

NJW4814, Dual H-Bridge Driver

The NJW4814 is a dual H-bridge driver with boost converter IC.

It can boost the output voltage from Li-ion battery and/or a 5V power supply and drives a piezo device by two H- bridge drivers.

48ms of internal fixed soft start function of the boost circuit sets a limit to startup current.

The dual H-

NJW4814 Features

* Boost Converter Block H-Bridge Driver Block Under Voltage Lockout Built-in Thermal Shutdown Standby Function Package Outline Output Switch Voltage Switching Current PWM Control Operating Voltage Range Oscillation Frequency Range Soft Start Function Over Current Protection Over Voltage Protection 4