Datasheet > ADuM5210BRSZ

ADuM5210BRSZ

更新时间： 2022-04-12 23:32:05

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
24页	555K
描述
Dual-Channel Isolators with Integrated DC-to-DC Converters

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ADuM5210BRSZ 数据手册

Data Sheet

ADuM5210/ADuM5211/ADuM5212

The preceding magnetic flux density values correspond to specific

current magnitudes at given distances from the ADuM5210/

ADuM5211/ADuM5212 transformers. Figure 29 expresses these

allowable current magnitudes as a function of frequency for

selected distances. As shown in Figure 29, the ADuM5210/

ADuM5211/ADuM5212 are extremely immune and can be

affected only by extremely large currents operated at high

frequency very close to the component. For the 1 MHz example,

a 0.5 kA current, placed 5 mm away from the ADuM5210/

ADuM5211/ADuM5212, is required to affect component

operation.

POWER CONSUMPTION

The V_DDPpower supply input provides power only to the converter.

Power for the data channels is provided through V_DD1and V_DD2

These power supplies can be connected to V_DDPand V_ISO, if desired,

or the supplies can receive power from an independent source. The

converter should be treated as a standalone supply to be utilized at

the discretion of the designer.

The V_DD1or V_DD2supply current at a given channel of the

ADuM5210/ADuM5211/ADuM5212 isolator is a function of

the supply voltage, the data rate of the channel, and the output

load of the channel.

For each input channel, the supply current is given by

DISTANCE = 1m

100

I_DDI= I_DDI(Q)

_DDI= I_DDI(D)× (2f − f_r) + I_DDI(Q)

f ≤ 0.5 f_r

f > 0.5 f_r

For each output channel, the supply current is given by

DISTANCE = 100mm

_DDO= I_DDO(Q)

f ≤ 0.5 f_r

_DDO= (I_DDO(D)+ (0.5 × 10⁻³) × C_L× V_DDO) × (2f − f_r) + I_{DDO Q)}

f > 0.5 f_r

DISTANCE = 5mm

0.1

where:

_DDI(D), I_DDO(D)are the input and output dynamic supply currents

per channel (mA/Mbps).

_DDI(Q), I_DDO(Q)are the specified input and output quiescent

0.01

10k

100k

10M

100M

MAGNETIC FIELD FREQUENCY (Hz)

supply currents (mA).

Figure 29. Maximum Allowable Current for Various Current-to-ADuM521x

Spacings

f is the input logic signal frequency (MHz); it is half the input

data rate, expressed in units of Mbps.

f_ris the input stage refresh rate (Mbps).

C_Lis the output load capacitance (pF).

Note that, in combinations of strong magnetic field and high

frequency, any loops formed by PCB traces can induce error

voltages sufficiently large to trigger the thresholds of succeeding

circuitry. Exercise care in the layout of such traces to avoid this

possibility.

_DDOis the output supply voltage (V).

To calculate the total V_DD1and V_DD2supply current, the supply

currents for each input and output channel corresponding to

V_DD1and V_DD2are calculated and totaled. Figure 18 and

Figure 19 show per-channel supply currents as a function of

data rate for an unloaded output condition. Figure 20 shows the

per-channel supply current as a function of data rate for a 15 pF

output condition. Figure 21 through Figure 23 show the total

_DD1and V_DD2supply current as a function of data rate for

ADuM5210/ ADuM5211/ADuM5212 channel configurations.

Rev. 0 | Page 21 of 24

1...18 19 202122 23 24

中文翻译

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ADuM5210BRSZ 替代型号

型号	品牌	替代类型	描述	数据表
ADuM5210BRSZ-RL7	ADI	类似代替	Dual-Channel Isolators with Integrated DC-to-DC Converters

与ADuM5210BRSZ相关器件

型号	品牌	获取价格	描述	数据表
ADuM5210BRSZ-RL7	ADI	获取价格	Dual-Channel Isolators with Integrated DC-to-DC Converters
ADuM5210CRSZ	ADI	获取价格	Dual-Channel Isolators with Integrated DC-to-DC Converters
ADuM5210CRSZ-RL7	ADI	获取价格	Dual-Channel Isolators with Integrated DC-to-DC Converters
ADuM5211	ADI	获取价格	Dual-Channel Isolators with Integrated DC-to-DC Converters
ADuM5211ARSZ	ADI	获取价格	Dual-Channel Isolators with Integrated DC-to-DC Converters
ADuM5211ARSZ-RL7	ADI	获取价格	Dual-Channel Isolators with Integrated DC-to-DC Converters
ADuM5211BRSZ	ADI	获取价格	Dual-Channel Isolators with Integrated DC-to-DC Converters
ADuM5211BRSZ-RL7	ADI	获取价格	Dual-Channel Isolators with Integrated DC-to-DC Converters
ADuM5211CRSZ	ADI	获取价格	Dual-Channel Isolators with Integrated DC-to-DC Converters
ADuM5211CRSZ-RL7	ADI	获取价格	Dual-Channel Isolators with Integrated DC-to-DC Converters

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