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参数资料
| 型号： | ADUM3160BRWZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 11/16页 |
| 文件大小： | 0K |
| 描述： | IC ISOLATOR USB 2.5K 16SOIC |
| 产品培训模块： | iCoupler Digital Isolater Technology |
| 标准包装： | 1,000 |
| 系列： | iCoupler® |
| 输入 - 1 侧/2 侧： | 2/2 |
| 通道数： | 4 |
| 电源电压： | 3 V ~ 5.5 V |
| 电压 - 隔离： | 2500Vrms |
| 数据速率： | 12Mbps |
| 传输延迟： | 70ns |
| 输出类型： | 逻辑 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 105°C |
Data Sheet
The pulses at the transformer output have an amplitude greater
than 1.0 V. The decoder has a sensing threshold at approximately
0.5 V, thus establishing a 0.5 V margin in which induced voltages
can be tolerated. The voltage induced across the receiving coil is
given by
V = ( ?dβ/dt ) ∑ π r n 2 ; n = 1, 2, … , N
1000
100
10
DISTANCE = 100mm
ADuM3160
DISTANCE = 1m
where:
β is the magnetic flux density (gauss).
r n is the radius of the n th turn in the receiving coil (cm).
N is the number of turns in the receiving coil.
1
0.1
DISTANCE = 5mm
Given the geometry of the receiving coil in the ADuM3160 and
an imposed requirement that the induced voltage be, at most,
0.01
1k
10k
100k
1M
10M
100M
50% of the 0.5 V margin at the decoder, a maximum allowable
magnetic field is calculated as shown in Figure 6.
100
10
1
0.1
0.01
0.001
1k 10k 100k 1M 10M 100M
MAGNETIC FIELD FREQUENCY (Hz)
Figure 6. Maximum Allowable External Magnetic Flux Density
For example, at a magnetic field frequency of 1 MHz, the maxi-
mum allowable magnetic field of 0.2 kgauss induces a voltage of
0.25 V at the receiving coil. This voltage is approximately 50% of
the sensing threshold and does not cause a faulty output transition.
Similarly, if such an event occurs during a transmitted pulse (and
is of the worst-case polarity), it reduces the received pulse from
>1.0 V to 0.75 V—still well above the 0.5 V sensing threshold of
the decoder.
The preceding magnetic flux density values correspond to specific
current magnitudes at given distances from the ADuM3160 trans-
formers. Figure 7 expresses these allowable current magnitudes
as a function of frequency for selected distances. As shown in
Figure 7, the ADuM3160 is 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 noted, a 0.5 kA
current must be placed 5 mm away from the ADuM3160 to affect
the operation of the device.
MAGNETIC FIELD FREQUENCY (Hz)
Figure 7. Maximum Allowable Current
for Various Current-to- ADuM3160 Spacings
Note that at combinations of strong magnetic field and high
frequency, any loops formed by PCB traces may induce error
voltages sufficiently large to trigger the thresholds of succeeding
circuitry. Care should be taken in the layout of such traces to
avoid this possibility.
INSULATION LIFETIME
All insulation structures eventually break down when subjected
to voltage stress over a sufficiently long period. The rate of insu-
lation degradation is dependent on the characteristics of the voltage
waveform applied across the insulation. In addition to the testing
performed by the regulatory agencies, Analog Devices carries out
an extensive set of evaluations to determine the lifetime of the
insulation structure within the ADuM3160 .
Analog Devices performs accelerated life testing using voltage
levels higher than the rated continuous working voltage. Accel-
eration factors for several operating conditions are determined.
These factors allow calculation of the time to failure at the actual
working voltage. The values shown in Table 8 summarize the
peak voltage for 50 years of service life for a bipolar ac operating
condition and the maximum CSA/VDE approved working volt-
ages. In many cases, the approved working voltage is higher than
the 50-year service life voltage. Operation at these high working
voltages can lead to shortened insulation life in some cases.
The insulation lifetime of the ADuM3160 depends on the
voltage waveform type imposed across the isolation barrier.
The i Coupler insulation structure degrades at different rates
depending on whether the waveform is bipolar ac, unipolar ac,
or dc. Figure 8, Figure 9, and Figure 10 illustrate these different
isolation voltage waveforms.
Rev. C | Page 11 of 16
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADUM3160WBRWZ | 功能描述:USB Digital Isolator 2500Vrms 2 Channel 12Mbps 25kV/μs CMTI 16-SOIC (0.295", 7.50mm Width) 制造商:analog devices inc. 系列:iCoupler? 包装:管件 零件状态:有效 技术:磁耦合 类型:USB 隔离式电源:无 通道数:2 输入 - 输入侧 1/输入侧 2:2/2 通道类型:双向 电压 - 隔离:2500Vrms 共模瞬态抗扰度（最小值）:25kV/μs 数据速率:12Mbps 传播延迟 tpLH / tpHL（最大值）:70ns，70ns 脉宽失真（最大）:- 上升/下降时间（典型值）:20ns，20ns（最大） 电压 - 电源:3 V ~ 5.5 V 工作温度:-40°C ~ 105°C 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商器件封装:16-SOIC 标准包装:47 |
| ADUM3160WBRWZ-RL | 功能描述:USB Digital Isolator 2500Vrms 2 Channel 12Mbps 25kV/μs CMTI 16-SOIC (0.295", 7.50mm Width) 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 类型:USB 隔离式电源:无 通道数:2 输入 - 输入侧 1/输入侧 2:2/2 通道类型:双向 电压 - 隔离:2500Vrms 共模瞬态抗扰度（最小值）:25kV/μs 数据速率:12Mbps 传播延迟 tpLH / tpHL（最大值）:70ns，70ns 脉宽失真（最大）:- 上升/下降时间（典型值）:20ns，20ns（最大） 电压 - 电源:3 V ~ 5.5 V 工作温度:-40°C ~ 105°C 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商器件封装:16-SOIC 标准包装:1,000 |
| ADUM3190 | 制造商:AD 制造商全称:Analog Devices 功能描述:High Stability Isolated Error Amplifier |
| ADUM3190_13 | 制造商:AD 制造商全称:Analog Devices 功能描述:High Stability Isolated Error Amplifier |
| ADUM3190ARQZ | 功能描述:隔离放大器 RoHS:否 制造商:Texas Instruments 输入补偿电压:1.5 mV 共模抑制比（最小值）:95 dB 带宽:60 KHz 工作电源电压:3.3 V 电源电流:8 mA 工作温度范围:- 40 C to + 105 C 安装风格:SMD/SMT 封装 / 箱体:SOP-8 封装:Tube |
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