Datasheet > NIRSP31V

NIRSP31V

更新时间： 2024-04-09 18:59:32

品牌	Logo	应用领域
纳芯微 - NOVOSENSE		变压器隔离技术
页数	文件大小	规格书
17页	1571K
描述
NIRSP31V是具有集成隔离式DC-DC电源的低成本三通道数字隔离器。隔离式DC-DC电源可基于片上变压器提供高达400mW的输出功率。反馈PWM信号由基于NOVOSENSE电容隔离技术的数字隔

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NIRSP31V 数据手册

NIRSP31

Triple-Channel Digital Isolators With

Integrated DC to DC Converter

Datasheet (EN) 1.1

Applications

Product Overview



Industrial Battery Management System

The NIRSP31 series devices are triple-channel digital

isolators with integrated isolated DC-DC converter. The

isolated DC-DC converter provides stable output voltage

and up to 400mW output power by closed-loop control

and transformer on chip. The feedback PWM signal is

sent to primary side by a digital isolator based on

Novosense capacity isolation technology. The high

integrated solution can help simplify system design, save

PCB area and improve reliability. The NIRSP31 series

devices support 3kVrms insulation 1min withstand

voltage. The data rate of the NIRSP31 series devices are

up to 20Mbps, and the common-mode transient

immunity (CMTI) is up to ±50kV/us.

Industrial automation system

Isolated RS232, RS485, CAN

General-purpose multichannel isolation

Device Information

Part Number

NIRSP31-DLARR

NIRSP31V-DLARR

Package

LGA 18

Body Size

4.00 × 5.00mm

The NIRSP31 series devices provide 5V to 5V, 5V to 3.3V,

3.3V to 3.3V conversion mode. The output voltage can be

set by SEL pin.

Functional Block Diagrams

Key Features



Power supply voltage:

VDD: 3V to 3.6V, 4.5V to 5.5V for NIRSP31V

4.5V to 5.5V for NIRSP31

VDDL: 1.8V to 3.6V, 4.5V to 5.5V

NIRSP31-DLARR

NIRSP31V-DLARR



Output Support Current:

Figure 1. NIRSP31 Block Diagram

80mA for 5V to 5V/3.3V

45mA for 3.3V to 3.3V



Over current and over temperature protection

Date rate: DC to 20Mbps

High CMTI:±50kV/us

Propagation delay: <75ns

Operation temperature: -40℃~125℃

RoHS-compliant packages: LGA-18

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