ISO1540

更新时间： 2024-12-01 12:21:35

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
21页	449K
描述
Low-Power Bidirectional I2C Isolators

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ISO1540 数据手册

ISO1540

ISO1541

www.ti.com

SLLSEB6 –JULY 2012

Low-Power Bidirectional I²C Isolators

Check for Samples: ISO1540, ISO1541

FEATURES

SAFETY AND REGULATORY

APPROVALS

•

Isolated Bidirectional, I²C Compatible,

Communications

•

4000-V_PKIsolation per DIN EN 60747-5-2

(VDE 0884 Part 2) (Pending)

•

Supports up to 1 MHz Operation

3-V to 5.5-V Supply Range

2500-V_RMSIsolation for 1 minute per UL 1577

(Approved)

Open Drain Outputs with 3.5-mA Side 1 and

35-mA Side 2 Sink Current Capability

CSA Component Acceptance Notice 5A

(Pending)

•

-40°C to 125°C Operating Temperature

±50 kV/µs Transient Immunity (Typical)

IEC 60950-1 and IEC 61010-1 End Equipment

Standards (Pending)

HBM ESD Protection of 4 kV on All Pins;

8 kV on Bus Pins

ISO1540

ISO1541

VCC1 1

SDA1 2

SCL1 3

GND1 4

8 VCC2

7 SDA2

6 SCL2

5 GND2

VCC1 1

SDA1 2

SCL1 3

GND1 4

8 VCC2

7 SDA2

6 SCL2

5 GND2

APPLICATIONS

•

Isolated I²C Bus

SMBus and PMBus Interfaces

Open-drain Networks

Motor Control Systems

Battery Management

I²C Level Shifting

Side 1

Side 2

Side 1

Side 2

DESCRIPTION

The ISO1540 and ISO1541 are low-power, bidirectional isolators that are compatible with I2C interfaces. These

devices have their logic input and output buffers separated by TI’s Capacitive Isolation technology using a silicon

dioxide (SiO2) barrier. When used in conjunction with isolated power supplies, these devices block high voltages,

isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging

sensitive circuitry.

This isolation technology provides for function, performance, size, and power consumption advantages when

compared to opto-couplers. The ISO1540 and ISO1541 enable a complete isolated I²C interface to be

implemented within a small form factor.

The ISO1540 has two isolated bidirectional channels for clock and data lines while the ISO1541 has a

bidirectional data and a unidirectional clock channel. The ISO1541 is useful in applications that have a single

Master while the ISO1540 is ideally fit for multi-master applications.

Isolated bidirectional communications is accomplished within these devices by offsetting the Side 1 Low-Level

Output Voltage to a value greater than the Side 1 High-Level Input Voltage thus preventing an internal logic latch

that otherwise would occur with standard digital isolators.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

I²C is a trademark of NXP B.V Corporation.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...21

中文翻译

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ISO1540 替代型号

型号	品牌	替代类型	描述	数据表
ISO1541	TI	功能相似	Low-Power Bidirectional I2C Isolators

与ISO1540相关器件

型号	品牌	获取价格	描述	数据表
ISO1540_1210	TI	获取价格	Low-Power Bidirectional I2C Isolators
ISO1540_13	TI	获取价格	Low-Power Bidirectional I2C Isolators
ISO1540_15	TI	获取价格	Low-Power Bidirectional I2C Isolators
ISO1540D	TI	获取价格	Low-Power Bidirectional I2C Isolators
ISO1540DR	TI	获取价格	Low-Power Bidirectional I2C Isolators
ISO1540-Q1	TI	获取价格	汽车类 2.5kVrms、隔离式双向时钟、双向 I2C 隔离器
ISO1540QDQ1	TI	获取价格	汽车类 2.5kVrms、隔离式双向时钟、双向 I2C 隔离器 \| D \| 8 \| -40
ISO1540QDRQ1	TI	获取价格	汽车类 2.5kVrms、隔离式双向时钟、双向 I2C 隔离器 \| D \| 8 \| -40
ISO1541	TI	获取价格	Low-Power Bidirectional I2C Isolators
ISO1541D	TI	获取价格	Low-Power Bidirectional I2C Isolators

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