Datasheet > ADUM6412

ADUM6412

更新时间： 2024-09-18 11:16:19

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
29页	874K
描述
集成DC/DC转换器和2个反向通道的鲁棒3.75 kV rms四通道隔离器

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

ADUM6412 数据手册

ADuM6410/ADuM6411/ADuM6412

Data Sheet

Testing and modeling show that the primary driver of long-

term degradation is displacement current in the polyimide

insulation causing incremental damage. The stress on the insul-

ation can be broken down into broad categories, such as dc stress,

which causes very little wear out because there is no displacement

current, and an ac component time varying voltage stress, which

causes wear out.

AC RMS

PEAK

RMS

The ratings in certification documents are usually based on

60 Hz sinusoidal stress because this reflects isolation from line

voltage. However, many practical applications have combinations

of 60 Hz ac and dc across the barrier as shown in Equation 1.

Because only the ac portion of the stress causes wear out, the

equation can be rearranged to solve for the ac rms voltage, as is

shown in Equation 2. For insulation wear out with the polyimide

materials used in these products, the ac rms voltage determines

the product lifetime.

TIME

Figure 34. Critical Voltage Example

The working voltage across the barrier from Equation 1 is

V_RMS= V_{AC RMS}²+V_DC

V_RMS= 240²+ 400²

V_RMS= 466 V

V_RMS= V_{AC RMS}²+V_DC

(1)

This V_RMSvalue is the working voltage used together with the

material group and pollution degree when looking up the creepage

required by a system standard.

V_{AC RMS}= V_RMS²−V_DC

To determine if the lifetime is adequate, obtain the time varying

portion of the working voltage. To obtain the ac rms voltage,

use Equation 2.

(2)

where:

_{AC RMS}is the time varying portion of the working voltage.

_RMSis the total rms working voltage.

_DCis the dc offset of the working voltage.

V_{AC RMS}= V_RMS²−V_DC

V_{AC RMS}

_{AC RMS}= 240 V rms

466²− 400²

Calculation and Use of Parameters Example

The following example frequently arises in power conversion

applications. Assume that the line voltage on one side of the

In this case, the ac rms voltage is simply the line voltage of

240 V rms. This calculation is more relevant when the waveform is

not sinusoidal. The value is compared to the limits for working

voltage in Table 27 for the expected lifetime, which is less than a

60 Hz sine wave, and it is well within the limit for a 50-year

service life.

isolation is 240 V ac rms and a 400 V dc bus voltage is present

on the other side of the isolation barrier. The isolator material is

polyimide. To establish the critical voltages in determining the

creepage, clearance and lifetime of a device, see Figure 34 and

the following equations.

Note that the dc working voltage limit is set by the creepage of

the package as specified in IEC 60664-1. This value can differ

for specific system level standards.

Rev. 0 | Page 28 of 29

1...25 26 272829

中文翻译

下载PDF

与ADUM6412相关器件

型号	品牌	获取价格	描述	数据表
ADuM6412BRSZ	ADI	获取价格	Quad-Channel Isolators with Integrated DC-to-DC Converters
ADuM6412BRSZ-RL7	ADI	获取价格	Quad-Channel Isolators with Integrated DC-to-DC Converters
ADUM6420A	ADI	获取价格	Quad-Channel Isolators with Integrated DC-to-DC Converter
ADUM6420ABRNZ3	ADI	获取价格	Quad-Channel Isolators with Integrated DC-to-DC Converter
ADUM6420ABRNZ3-RL	ADI	获取价格	Quad-Channel Isolators with Integrated DC-to-DC Converter
ADUM6420ABRNZ5	ADI	获取价格	Quad-Channel Isolators with Integrated DC-to-DC Converter
ADUM6420ABRNZ5-RL	ADI	获取价格	Quad-Channel Isolators with Integrated DC-to-DC Converter
ADUM6421A	ADI	获取价格	Quad-Channel Isolators with Integrated DC-to-DC Converter
ADUM6421ABRNZ3	ADI	获取价格	Quad-Channel Isolators with Integrated DC-to-DC Converter
ADUM6421ABRNZ3-RL	ADI	获取价格	Quad-Channel Isolators with Integrated DC-to-DC Converter

与ADUM6412相关文章

摩尔斯微电子在美国约书亚树国家公园测试 Wi-Fi HaLow
2024-09-18

15
贸泽上架Tallysman TW5386智能GNSS天线
2024-09-18

14
SL74HC10N：高性能三输入与非门解析
2024-09-03

93
AIC1781A 电池充电控制器深度解析
2024-09-03

82

产品中心

服务支持

精选活动

关于我们

帮助中心

ADUM6412

ADUM6412 数据手册

与ADUM6412相关器件

与ADUM6412相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

ADUM6412

ADUM6412 数据手册

与ADUM6412相关器件

与ADUM6412相关文章

您还可以找

您在本页遇到什么问题？