NJW1280 Series
High Capacitance Piezo-sounder Driver with charge pump
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. The operating voltage of NJW1280 is 2.0V to 5.5V, and it can be used with coin type batteries or Li-ion batteries. When not operating (no signal), the built-in input signal detection circuit automatically switches to the shutdown mode (0.5 µA max. at VDD=3V) to reduce battery consumption and realize a long service life of the set. The NJW1280 is available in a leaded MSOP10 package and a 2.3mm x 2.3mm size 0.397mm thick leadless DFN8-G2 package, which can be used for ultra-small wearable devices.
Applications
- Security Alarm
- Fire Alarm
- Smoke Detector
Spec
| Standard | |
|---|---|
| Supply Voltage | 2V to 5.5V |
| Channel | BTL 1ch. |
| Input Signal | PWM/PDM |
| Output Voltage / Vom | Typ. 30Vpp |
| Output Voltage / V+ | 5V |
| Output Voltage / CL | 30nF |
| Stand-by | Yes |
| Operating Current | - Active: (FIN = 4kHz, CPIEZO = 30nF) 3.5mA typ.- Shutdown 0.5µA max.) |
| Wide Operating Temperature | -40°C to 105°C |
| Junction Temp. | 150°C |
| Package | EQFN16-G2,MSOP10(TVSP10) |
| Features | Built in Charge Pump 30Vpp Differential Output |
| Note 1 | Internal 3 times Charge pump Circuit |
| Note 2 | Piezo-Sounder Drive Capacity (30nF typ.) |
Protections / Functions
| Stand-by | Mute | Fine Tune Sensitivity |
|---|---|---|
 |
Functional Description
Technical Documents
Quality & Packages
| Product Name | Compatibility | Package | Marking | Reliability |
|---|---|---|---|---|
| NJW1280MG2 |
|
EQFN16-G2 | - | NJW-1-s-r |
| NJW1280RB2 |
|
MSOP10(TVSP10) | - | NJW-1-s-fr |
- Refer to the datasheets for the details on the product.
- The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
Buy / Contact
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Purchase, Request for samples and documentsSales are made through distributors. Please contact your local distributors for any sales-related inquiry such as price.
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Available from 1 piece!Our electronic device products are available through our authorized online distributors.
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Technical Support