NJW1280 - High Capacitance Piezo-sounder Driver

Product Overview

JRC

NJW1280 High Capacitance Piezo-sounder Driver by JRC - Datasheet Preview — Datasheet preview – NJW1280

Datasheet Details

Part number	NJW1280
Manufacturer	JRC
File Size	572.99 KB
Description	High Capacitance Piezo-sounder Driver
Datasheet	NJW1280 Datasheet
Additional preview pages of the NJW1280 datasheet.

Product details

Description

NJW1280 is a driver for large-capacity piezo-sounder.

With the built-in charge pump circuit and differential output, it is enabling to output 30Vpp with 5V single power supply, and can be configure a large-capacity 30nF piezo-sounder with four external capacitors.

Features

S (VDD=3V).
Output Voltage (VDD = 5V, Differential).
Piezo-Sounder Drive Capacity.
Internal 3 times Charge pump Circuit.
Operating Voltage.
Operating Current 30VPP typ. 30nF typ. 2.0 to 5.5V - Active: (FIN = 4kHz, CPIEZO = 30nF) 3.5mA typ. - Shutdown 0.5uA max.
Input Signal Detection Circuit (Auto Shutdown).
Operating Temperature.
Thermal Shutdown Circuit.
Current Limit Circuit -40°C to 105°C.
Low-PVDD Detection Circuit.
Package O.

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Published: Aug 19, 2025 |