TI ISO6760L：六通道强化数字隔离器，集成闭锁及强大EMC性能

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"TI-ISO6760L.pdf 是一款六通道加强型数字隔离器，集成有隔离锁和强大的EMC性能。该器件适用于电机驱动、家电、电网和楼宇自动化等应用，具有高耐压、宽电源范围、非反相和反相输出选项以及宽温操作等特点。" TI公司的ISO6760L是一款集成了隔离锁功能的六通道数字隔离器，设计上考虑了相邻通道的相反极性，提供了三组配对的隔离锁通道，确保了在多通道系统中的安全操作。这款器件以其坚固的隔离屏障而引人注目，工作电压可高达1500VRMS，隔离等级达到5000VRMS，能承受10kV的浪涌能力，并具有典型的±130kV/μs共模瞬态抑制(CMTI)性能，这些特性使其在高压环境中表现出卓越的稳定性。在电源方面，ISO6760L支持1.71V至1.89V和2.25V至5.5V的宽电源范围，适应性强。该器件提供非反相（ISO6760L）和反相（ISO6760LN）两种输出选项，数据传输速率高达50Mbps，能够进行1.71V至5.5V之间的电平转换。此外，它可在-40°C至125°C的宽温度范围内正常工作，适用于各种环境条件。在电磁兼容性(EMC)方面，ISO6760L表现出色，具备系统级的静电放电(ESD)、电磁脉冲(EFT)和浪涌抗扰度，同时具有低辐射排放，这使得它能在复杂的电磁环境下稳定运行。封装形式采用宽SOIC(DW-16)，符合多种安全认证标准，包括待审批的DIN VDE 0884-11:2017-01、UL1577组件认可计划，以及即将获得的IEC62368-1、IEC61010-1、IEC60601-1和GB4943.1-2011认证，保证了其在安全相关应用中的合规性。总结来说，TI的ISO6760L和ISO6760LN设备是针对工业控制和自动化应用设计的高性能隔离解决方案，其强大的隔离性能、出色的EMC特性、广泛的电源和温度适用范围以及多种认证，使它们成为电机驱动、家用电器、电网管理和楼宇自动化等领域中不可或缺的组件。

6.6 Insulation Specifications

PARAMETER TEST CONDITIONS

VALUE

UNIT

DW-16

CLR External clearance

(1)

Shortest terminal-to-terminal distance through air >8 mm

CPG External creepage

(1)

Shortest terminal-to-terminal distance across the

package surface

>8 mm

DTI Distance through the insulation Minimum internal gap (internal clearance) >17 um

CTI Comparative tracking index DIN EN 60112 (VDE 0303-11); IEC 60112 >600 V

Material group According to IEC 60664-1 I

Overvoltage category per IEC 60664-1

Rated mains voltage ≤ 600 V

RMS

I-IV

Rated mains voltage ≤ 1000 V

RMS

I-III

DIN VDE V 0884-11:2017-01

(2)

IORM

Maximum repetitive peak isolation voltage AC voltage (bipolar) 2121 V

IOWM

Maximum working isolation voltage

AC voltage; Time dependent dielectric breakdown

(TDDB) Test;

See Insulation Lifetime Projection Data

1500 V

RMS

DC voltage 2121 V

IOTM

Maximum transient isolation voltage

TEST

= V

IOTM

t = 60 s (qualification);

TEST

= 1.2 x V

IOTM

t= 1 s (100% production)

7071 V

IOSM

Maximum surge isolation voltage

(3)

Test method per IEC 62368-1, 1.2/50 µs waveform,

TEST

= 1.6 x V

IOSM

= 10,000 V

(qualification)

6250 V

Apparent charge

(4)

Method a, After Input-output safety test subgroup 2/3,

ini

= V

IOTM

, t

ini

= 60 s;

pd(m)

= 1.2 x V

IORM

, t

= 10 s

≤5

Method a, After environmental tests subgroup 1,

ini

= V

IOTM

, t

ini

= 60 s;

pd(m)

= 1.6 x V

IORM

, t

= 10 s

≤5

Method b1; At routine test (100% production) and

preconditioning (type test)

ini

= 1.2 x V

IOTM

, t

ini

= 1 s;

pd(m)

= 1.875 x V

IORM

, t

= 1 s

≤5

Barrier capacitance, input to output

(5)

= 0.4 x sin (2πft), f = 1 MHz ~1 pF

Isolation resistance

(5)

= 500 V, T

= 25°C >10

ΩV

= 500 V, 100°C ≤ T

≤ 125°C >10

= 500 V at T

= 150°C >10

Pollution degree 2

Climatic category 40/125/21

UL 1577

ISO

Maximum withstanding isolation voltage

TEST

= V

ISO

, t = 60 s (qualification),

TEST

= 1.2 x V

ISO

, t = 1 s (100% production)

5000 V

RMS

(1) Creepage and clearance requirements should be applied according to the specific equipment isolation standards of an application.

Care should be taken to maintain the creepage and clearance distance of a board design to ensure that the mounting pads of

the isolator on the printed-circuit board do not reduce this distance. Creepage and clearance on a printed-circuit board become

equal in certain cases. Techniques such as inserting grooves and/or ribs on a printed-circuit board are used to help increase these

specifications.

(2) This coupler is suitable for safe electrical insulation only within the safety ratings. Compliance with the safety ratings shall be ensured

by means of suitable protective circuits.

(3) Testing is carried out in air or oil to determine the intrinsic surge immunity of the isolation barrier.

(4) Apparent charge is electrical discharge caused by a partial discharge (pd).

(5) All pins on each side of the barrier tied together creating a two-terminal device.

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ISO6760L

SLLSFO3 – DECEMBER 2021

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6.7 Safety-Related Certifications

VDE CSA UL CQC TUV

Plan to certify according to

DIN VDE V 0884-11:2017-

Plan to certify according to

IEC 62368-1, IEC 61010-1

and IEC 60601-1

Plan to certify according

to UL 1577 Component

Recognition Program

Plan to certify according to

GB4943.1-2011

Plan to certify according

to EN 61010-1:2010/

A1:2019 and EN

62368-1:2014

Maximum transient

isolation

voltage, 7071 V

;

Maximum repetitive peak

isolation

voltage, 2121 V

;

Maximum surge isolation

voltage, 6250 V

600 V

RMS

reinforced

insulation per CSA

62368-1:19 and IEC

62368-1:2018; 600 V

RMS

reinforced insulation

per CSA 61010-1-12+A1

and IEC 61010-1 3rd

Ed (pollution degree 2,

material group I);

2 MOPP (Means of

Patient Protection) per

CSA 60601-1-14 and IEC

60601-1 Ed.3+A1, 250

RMS

max working voltage

Single protection,

5000 V

RMS

Reinforced insulation,

Altitude ≤ 5000 m, Tropical

Climate,

700 V

RMS

maximum working voltage

5000 V

RMS

reinforced

insulation per EN

61010-1:2010/A1:2019

and EN 62368-1:2014 up

to working voltage of 600

RMS

Certificate planned Certificate planned Certificate planned Certificate planned Certificate planned

6.8 Safety Limiting Values

Safety limiting

(1)

intends to minimize potential damage to the isolation barrier upon failure of input or output circuitry.

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

DW-16 PACKAGE

Safety input, output, or supply current

(1)

θJA

=68.8°C/W, V

= 5.5 V, T

= 150°C,

= 25°C

330 mA

θJA

= 68.8°C/W, V

= 3.6 V, T

= 150°C,

= 25°C

504 mA

θJA

= 68.8°C/W, V

= 2.75 V, T

= 150°C,

= 25°C

660 mA

θJA

= 68.8°C/W, V

= 1.89 V, T

= 150°C,

= 25°C

956 mA

Safety input, output, or total power

(1)

θJA

= 68.8°C/W, T

= 150°C, T

= 25°C 1820 mW

Maximum safety temperature

(1)

150 °C

(1) The maximum safety temperature, T

, has the same value as the maximum junction temperature, T

, specified for the device. The

and P

parameters represent the safety current and safety power respectively. The maximum limits of I

and P

should not be

exceeded. These limits vary with the ambient temperature, T

The junction-to-air thermal resistance, R

θJA

, in the table is that of a device installed on a high-K test board for leaded surface-mount

packages. Use these equations to calculate the value for each parameter:

= T

+ R

θJA

× P, where P is the power dissipated in the device.

J(max)

= T

+ R

θJA

× P

, where T

J(max)

is the maximum allowed junction temperature.

= I

× V

, where V

is the maximum input voltage.

ISO6760L

SLLSFO3 – DECEMBER 2021

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