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| 型号： | ADUM4223CRWZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 17/20页 |
| 文件大小： | 0K |
| 描述： | IC 5KV ISO HALF BR DRVR 16SOIC |
| 标准包装： | 1,000 |
| 系列： | * |
Data Sheet
Given the geometry of the receiving coil in the ADuM3223 /
ADuM4223 and an imposed requirement that the induced
voltage is, at most, 50% of the 0.5 V margin at the decoder, a
maximum allowable magnetic field is calculated, as shown in
Figure 23.
100
ADuM3223/ADuM4223
POWER CONSUMPTION
The supply current at a given channel of the ADuM3223 /
ADuM4223 isolator is a function of the supply voltage,
channel data rate, and channel output load.
For each input channel, the supply current is given by
IDDI = IDDI ( Q )
f ≤ 0.5 fr
10
IDDI = IDDI ( D ) × (2 f – fr ) + IDDI(Q)
f > 0.5 fr
For each output channel, the supply current is given by
1
IDDO = IDDO ( Q )
f ≤ 0.5 fr
IDDO = ( IDDO ( D ) + (0.5) × CLVDDO ) × (2 f – fr ) +
0.1
0.01
IDDO ( Q )
where:
f > 0.5 fr
IDDI(D) , IDDO(D) are the input and output dynamic supply
0.001
1k 10k 100k 1M 10M 100M
MAGNETIC FIELD FREQUENCY (Hz)
Figure 23. Maximum Allowable External Magnetic Flux Density
For example, at a magnetic field frequency of 1 MHz, the maxi-
mum allowable magnetic field of 0.08 kgauss induces a voltage
of 0.25 V at the receiving coil. This is about 50% of the sensing
threshold and does not cause a faulty output transition. Simi-
larly, if such an event were to occur during a transmitted pulse
(and had the worst-case polarity), the received pulse is reduced
from >1.0 V to 0.75 V, still well above the 0.5 V sensing thresh-
old of the decoder.
The preceding magnetic flux density values correspond to
specific current magnitudes at given distances away from the
ADuM3223 / ADuM4223 transformers. Figure 24 expresses
these allowable current magnitudes as a function of frequency
for selected distances. As shown, the ADuM3223 / ADuM4223
are immune and only can be affected by extremely large currents
operated at a high frequency and very close to the component.
For the 1 MHz example, a 0.2 kA current must be placed 5 mm
away from the ADuM3223 / ADuM4223 to affect the
component’s operation.
1k
DISTANCE = 1m
100
10
DISTANCE = 100mm
1
DISTANCE = 5mm
0.1
0.01
currents per channel (mA/Mbps).
CL is the output load capacitance (pF).
VDDO is the output supply voltage (V).
f is the input logic signal frequency (MHz, half of the input data
rate, NRZ signaling).
fr is the input stage refresh rate (Mbps).
IDDI(Q) , IDDO(Q) are the specified input and output quiescent
supply currents (mA).
To calculate the total supply current, the supply currents for
each input and output channel corresponding to IDD1, IDDA,
and IDDB are calculated and totaled.
Figure 9 provides total input IDD1 supply current as a function
of data rate for both input channels. Figure 10 provides total
IDDA or IDDB supply current as a function of data rate for
both outputs loaded with 2 nF capacitance.
1k
10k
100k
1M
10M
100M
MAGNETIC FIELD FREQUENCY (Hz)
Figure 24. Maximum Allowable Current for Various
Current-to- ADuM3223 / ADuM4223 Spacings
Rev. D | Page 17 of 20
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相关代理商/技术参数 |
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| ADUM4223WARWZ | 功能描述:4A Gate Driver Magnetic Coupling 5000Vrms 2 Channel 16-SOIC 制造商:analog devices inc. 系列:iCoupler? 包装:管件 零件状态:有效 技术:磁耦合 通道数:2 电压 - 隔离:5000Vrms 共模瞬态抗扰度（最小值）:50kV/μs 传播延迟 tpLH / tpHL（最大值）:59ns，59ns 脉宽失真（最大）:- 上升/下降时间（典型值）:12ns，12ns 电流 - 输出高，低:- 电流 - 峰值输出:4A 电压 - 正向（Vf）（典型值）:- 电流 - DC 正向（If）:- 电压 - 电源:4.5 V ~ 18 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商器件封装:16-SOIC 认可:CSA，UR，VDE 标准包装:47 |
| ADUM4223WARWZ-RL | 功能描述:4A Gate Driver Magnetic Coupling 5000Vrms 2 Channel 16-SOIC 制造商:analog devices inc. 系列:iCoupler? 包装:带卷（TR） 零件状态:有效 技术:磁耦合 通道数:2 电压 - 隔离:5000Vrms 共模瞬态抗扰度（最小值）:50kV/μs 传播延迟 tpLH / tpHL（最大值）:59ns，59ns 脉宽失真（最大）:- 上升/下降时间（典型值）:12ns，12ns 电流 - 输出高，低:- 电流 - 峰值输出:4A 电压 - 正向（Vf）（典型值）:- 电流 - DC 正向（If）:- 电压 - 电源:4.5 V ~ 18 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商器件封装:16-SOIC 认可:CSA，UR，VDE 标准包装:1,000 |
| ADUM4223WBRWZ | 功能描述:4A Gate Driver Magnetic Coupling 5000Vrms 2 Channel 16-SOIC 制造商:analog devices inc. 系列:iCoupler? 包装:管件 零件状态:有效 技术:磁耦合 通道数:2 电压 - 隔离:5000Vrms 共模瞬态抗扰度（最小值）:50kV/μs 传播延迟 tpLH / tpHL（最大值）:54ns，54ns 脉宽失真（最大）:- 上升/下降时间（典型值）:12ns，12ns 电流 - 输出高，低:- 电流 - 峰值输出:4A 电压 - 正向（Vf）（典型值）:- 电流 - DC 正向（If）:- 电压 - 电源:7.5 V ~ 18 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商器件封装:16-SOIC 认可:CSA，UR，VDE 标准包装:47 |
| ADUM4223WBRWZ-RL | 功能描述:4A Gate Driver Magnetic Coupling 5000Vrms 2 Channel 16-SOIC 制造商:analog devices inc. 系列:iCoupler? 包装:带卷（TR） 零件状态:有效 技术:磁耦合 通道数:2 电压 - 隔离:5000Vrms 共模瞬态抗扰度（最小值）:50kV/μs 传播延迟 tpLH / tpHL（最大值）:54ns，54ns 脉宽失真（最大）:- 上升/下降时间（典型值）:12ns，12ns 电流 - 输出高，低:- 电流 - 峰值输出:4A 电压 - 正向（Vf）（典型值）:- 电流 - DC 正向（If）:- 电压 - 电源:7.5 V ~ 18 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商器件封装:16-SOIC 认可:CSA，UR，VDE 标准包装:1,000 |
| ADUM4223WCRWZ | 功能描述:4A Gate Driver Magnetic Coupling 5000Vrms 2 Channel 16-SOIC 制造商:analog devices inc. 系列:iCoupler? 包装:管件 零件状态:有效 技术:磁耦合 通道数:2 电压 - 隔离:5000Vrms 共模瞬态抗扰度（最小值）:50kV/μs 传播延迟 tpLH / tpHL（最大值）:54ns，54ns 脉宽失真（最大）:- 上升/下降时间（典型值）:12ns，12ns 电流 - 输出高，低:- 电流 - 峰值输出:4A 电压 - 正向（Vf）（典型值）:- 电流 - DC 正向（If）:- 电压 - 电源:11.5 V ~ 18 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商器件封装:16-SOIC 认可:CSA，UR，VDE 标准包装:47 |
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