"AMC1411高阻抗2V输入增强型隔离放大器1技术特性与应用说明"

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《TI-AMC1411.pdf》是一份关于AMC1411高阻抗2V输入增强型隔离放大器的文档。该文档详细介绍了该隔离放大器的特性、应用和说明，并提供了技术规格和性能参数。 AMC1411是一款采用15mm扩展型SOIC封装的高阻抗2V输入增强型隔离放大器。它具有优化的2V高阻抗输入电压范围，可实现隔离式电压测量。其固定增益为1.0 V/V，具有低直流误差，失调电压误差在±1.5mV内（最大值），温漂在±10µV/°C内（最大值），增益误差在±0.2%内（最大值），增益漂移在±30ppm/°C内（最大值），非线性在0.04%内（最大值）。该放大器可以在高侧和低侧以3.3V或5V电压下运行，并具有高侧电源缺失检测功能。此外，AMC1411还具有高CMTI（Common Mode Transient Immunity）性能，达到了100kV/µs（最小值）。它的爬电距离为≥15.7mm，并采用了扩展型SOIC封装。此外，该放大器还具有增强的隔离性能，符合DIN VDE V 0884-11：2017-01的10600-VPK增强型隔离标准，并符合UL1577标准，隔离电压高达7500VRMS，持续时间长达1分钟。 AMC1411可以在工业级工作温度范围内正常工作，温度范围为-40°C至125°C。它适用于具有隔离式电压感应需求的多种应用，如电机驱动器、变频器、光伏逆变器、风力涡轮机逆变器和铁路运输系统等。 AMC1411是一款隔离式精密放大器，其输出和输入电路之间通过具有抗电磁干扰性能的电容隔离层进行隔离。这种设计可以有效降低干扰对信号的影响，提供高精确度和稳定性的信号放大和隔离。总之，《TI-AMC1411.pdf》提供了对AMC1411高阻抗2V输入增强型隔离放大器的全面介绍。其优化的特性、可靠的性能和广泛适用的应用领域使其成为电气和电子工程领域的重要组成部分。无论是在工业控制系统还是在新能源领域，AMC1411都能发挥重要作用，提供可靠的信号隔离和放大功能。

6.6 Insulation Specifications

over operating ambient temperature range (unless otherwise noted)

PARAMETER TEST CONDITIONS VALUE UNIT

GENERAL

CLR External clearance

(1)

Shortest pin-to-pin distance through air

≥ 14.7

CPG External creepage

(1)

Shortest pin-to-pin distance across the package surface

≥ 15.7

DTI Distance through insulation Minimum internal gap (internal clearance) of the double insulation

≥ 0.021

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

≥ 600

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 (VDE V 0884-11): 2017-01

IORM

Maximum repetitive peak isolation

voltage

At AC voltage 2260 V

IOWM

Maximum-rated isolation

working voltage

At AC voltage (sine wave) 1600 V

RMS

At DC voltage 2260 V

IOTM

Maximum transient

isolation voltage

TEST

= V

IOTM

, t = 60 s (qualification test) 10600

TEST

= 1.2 × V

IOTM

, t = 1 s (100% production test) 12720

IOSM

Maximum surge

isolation voltage

(2)

Test method per IEC 60065, 1.2/50-µs waveform,

TEST

= 1.6 × V

IOSM

= 12800 V

(qualification)

8000 V

Apparent charge

(3)

Method a, after input/output safety test subgroups 2 and 3,

ini

= V

IOTM

, t

ini

= 60 s, V

pd(m)

= 1.2 × V

IORM

, t

= 10 s

≤ 5

Method a, after environmental tests subgroup 1,

ini

= V

IOTM

, t

ini

= 60 s, V

pd(m)

= 1.6 × V

IORM

, t

= 10 s

≤ 5

Method b1, at routine test (100% production) and preconditioning (type

test), V

ini

= V

IOTM

, t

ini

= 1 s, V

pd(m)

= 1.875 × V

IORM

, t

= 1 s

≤ 5

Barrier capacitance,

input to output

(4)

= 0.5 V

at 1 MHz ~1.5 pF

Insulation resistance,

input to output

(4)

= 500 V at T

= 25°C > 10

= 500 V at 100°C ≤ T

≤ 125°C

> 10

= 500 V at T

= 150°C > 10

Pollution degree 2

Climatic category 55/125/21

UL1577

ISO

Withstand isolation voltage

TEST

= V

ISO

= 7500 V

RMS

or 10600 V

, t = 60 s (qualification),

TEST

= 1.2 × V

ISO

= 9000 V

RMS

, t = 1 s (100% production test)

7500 V

RMS

(1) Apply creepage and clearance requirements according to the specific equipment isolation standards of an application. Care must 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 (PCB) do not reduce this distance. Creepage and clearance on a PCB become equal in certain cases. Techniques

such as inserting grooves, ribs, or both on a PCB are used to help increase these specifications.

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

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

(4) All pins on each side of the barrier are tied together, creating a two-pin device.

AMC1411

ZHCSN86A – MAY 2021 – REVISED SEPTEMBER 2021

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Product Folder Links: AMC1411

6.7 Safety-Related Certifications

VDE UL

Certified according to DIN VDE V 0884-11 (VDE V 0884-11): 2017-01,

DIN EN 60950-1 (VDE 0805 Teil 1): 2014-08, and

DIN EN 60065 (VDE 0860): 2005-11

Recognized under 1577 component recognition and

CSA component acceptance NO 5 programs

Reinforced insulation Single protection

Certificate number: pending File number: E181974

6.8 Safety Limiting Values

Safety limiting

(1)

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

of the I/O can allow low resistance to ground or the supply and, without current limiting, dissipate sufficient power to over-

heat the die and damage the isolation barrier potentially leading to secondary system failures.

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Safety input, output, or supply current

θJA

= 63.2°C/W, VDDx = 3.6 V,

= 150°C, T

= 25°C

550

θJA

= 63.2°C/W, VDDx = 5.5 V,

= 150°C, T

= 25°C

360

Safety input, output, or total power R

θJA

= 63.2°C/W, T

= 150°C, T

= 25°C 1980 mW

Maximum safety temperature 150 °C

(1) The maximum safety temperature, T

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

, specified for the device. The I

and P

parameters represent the safety current and safety power, respectively. Do not exceed the maximum limits of I

and P

. These

limits vary with the ambient temperature, T

The junction-to-air thermal resistance, R

θJA

, in the Thermal Information 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 junction temperature.

= I

× VDD

max

, where VDD

max

is the maximum supply voltage for high-side and low-side.

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AMC1411

ZHCSN86A – MAY 2021 – REVISED SEPTEMBER 2021

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