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ADUM1255ASA+中文資料亞德諾數(shù)據(jù)手冊PDF規(guī)格書

ADUM1255ASA+
廠商型號

ADUM1255ASA+

功能描述

I2C Isolator with Unidirectional SCL, Idle-bus Hotswap and Low VOL

文件大小

1.6944 Mbytes

頁面數(shù)量

18

生產(chǎn)廠商 Analog Devices
企業(yè)簡稱

AD亞德諾

中文名稱

亞德諾半導(dǎo)體技術(shù)有限公司官網(wǎng)

原廠標識
數(shù)據(jù)手冊

下載地址一下載地址二到原廠下載

更新時間

2025-1-7 22:30:00

ADUM1255ASA+規(guī)格書詳情

General Description

The ADuM1255 offers two open-drain channels, one

unidirectional and one bidirectional for applications,

such as I2C, that require data to be transmitted in both

directions on the same line, but have a unidirectional

clock. To prevent latch-up action, side 1 outputs

comprise special buffers that regulate the logic-low

voltage at 0.64V, and the input logic-low threshold is at

least 50mV lower than the output logic-low voltage. Side

2 features conventional buffers that do not regulate

logic-low output voltage.

The ADuM1255 features independent 2.25V to 5.5V

supplies on both side 1 and side 2 of the isolator. The

device operates up to 2MHz.

The ADuM1255 provides a disturbance-free bus

connection for hot-plug connections on side 2 by first

precharging the bus pins and then monitoring the bus

state for either an idle bus or detection of an I2C stop

condition before connecting side 1 and side 2.

The ADuM1255 is available in an 8-pin narrow-body

SOIC package. The devices are rated for operation at

ambient temperatures of -40°C to +125°C.

Key Applications

? Isolated I2C/SMBus Interface

? Battery Management Systems

? Power Over Ethernet (PoE)

? Motor Control Systems

Benefits and Features

? Low VOL(MAX) for Greater I2C Device Compatibility

? Side 1: 0.69V

? Side 2: 0.4V

? Independent VDD1/VDD2 Supplies Support 3.3V and

5V Logic Voltage Levels and Allow Level Shifting

? 2.25V to 5.5V for Both Sides

? Hot-Swappable Side 2 I/O Prevents Data Corruption

? Initial Side 2 Connection Occurs at Bus Idle or

Stop States

? Bidirectional I2C Data Transfer up to 2MHz SCL

? Strong Current Sinking Enables Lower RPULL-UP

Values for Faster Bus Speeds

? Side 1: 5mA

? Side 2: 50mA

? Robust Galvanic Isolation of Digital Signals

? Continuously Withstands (VIOWM)

- 8-Narrow SOIC: 445VRMS

? Withstands ±10kV Surge per IEC 61000-4-5

? Package Creepage and Clearance

- 8-Narrow SOIC: 4mm

? Safety and Regulatory Approvals (Pending)

? IEC60747-17 (Pending)

- Reinforced VIORM Narrow SOIC: 630VPEAK

? UL 1577 (Pending)

- 8-Narrow SOIC: 3000VRMS for 1min

? IEC/EN/CSA 62368-1 (Pending)

? IEC/EN/CSA 61010-1 (Pending

? CAN/CSA-C22.2 No. 14-18 (Pending)

供應(yīng)商 型號 品牌 批號 封裝 庫存 備注 價格
ADI
2020+
SOP8
80000
只做自己庫存,全新原裝進口正品假一賠百,可開13%增
詢價
ADI/亞德諾
20+
8-LeadSOIC
33680
ADI全新原裝-可開原型號增稅票
詢價
ADI/亞德諾
22+
SOP-8
100000
代理渠道/只做原裝/可含稅
詢價
ADI/亞德諾
22+
SOP8
9000
原裝正品
詢價
6000
詢價
ADI(亞德諾)/LINEAR
2021+
SOIC-8
499
詢價
ADI(亞德諾)
23+
NA
10000
原裝,BOM表可配單
詢價
ADI(亞德諾)
23+
N/A
10000
正規(guī)渠道,只有原裝!
詢價
ADI(亞德諾)/LINEAR
1921+
SOIC-8
3575
向鴻倉庫現(xiàn)貨,優(yōu)勢絕對的原裝!
詢價
ADI/亞德諾
22+
SOP-8
9852
只做原裝正品現(xiàn)貨!或訂貨假一賠十!
詢價