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参数资料
| 型号： | SI8501-C-IM |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 13/36页 |
| 文件大小： | 0K |
| 描述： | SENSOR CURRENT 5A 5.5V UNI 12QFN |
| 标准包装： | 490 |
| 电流 - 感应： | 5A |
| 精确度： | ±5% |
| 灵敏度： | 392mV/A |
| 电流 - 电源： | 4mA |
| 传感器类型： | 闭环 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 输出： | 可配置 |
| 频率： | 50kHz ~ 1MHz |
| 电极标记： | 单向 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 12-VFQFN |
| 包装： | 管件 |
| 产品目录页面： | 627 (CN2011-ZH PDF) |
| 其它名称： | 336-1718-5 |
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Si85xx
3. Application Information
Ground
Ground
3.1. Board Layout
Plane Edge
Top View
Plane Edge
The Si85xx is connected in the series path of the current
to be measured. The Si85xx must be located as far as
possible from transformer and other magnetic field
sources. Like other analog components, the Si85xx
should be powered from a low-noise dc source and,
preferably, to a low-noise analog ground plane.
Recommended bypass capacitors are 1 μF in parallel
with a 0.1 μF, positioned as close to the Si85xx as
VDD Pin
Mode Pin
(Non-Ping-Pong)
VDD Fly Wire
Current
Carrying Slug
possible. When using the Si850x (single output
versions), all three ground pins MUST be connected to
the same ground point, and both VDD1 and VDD2 pins
MUST be tied to the VDD system power supply.
3.2. Layout Requirements
The Si85xx requires special layout techniques to ensure
proper operation (see Figures 9 and 10). Due to the
close proximity of the current-carrying slug and current
sensor silicon, magnetic coupling between the current-
carrying slug and the silicon can form a ground loop
causing the output voltage to be 0 V even though
current is flowing through the slug. To eliminate any
Bonding Wire
Gnd Pin
Bypass Capacitor
5 V VDD Trace
3.5 mm
SOIC Package
Current
Sensor Die
such coupling issues, a red fly-wire VDD trace (see
Figures 9 and 10) should be implemented in the layout.
For the SOIC package, the red fly-wire trace should be
Figure 9. SOIC Layout Requirements
approximately 3.5 mm from the center edge of the
package intersecting approximately in the center of the
package (see Figure 9). For the QFN package, the red
fly-wire should be approximately in the center of the
package (see Figure 10). Standard wire thicknesses for
10 mA current-carrying capabilities should be used.
Moreover, note that the fly-wire trace should be
completely under the ground plane since this will also
Ground Plane Edge
VDD Pin
Mode Pin
(Non-Ping-Pong)
Top View
Ground
Plane Edge
Current
Carrying Slug
reduce coupling.
Regarding isolation voltage requirements, the trace
Bonding
Wires
2 mm
Current
Sensor Die
does not need to follow the lead frame and bonding
traces exactly, as long as the net magnetic flux is close
to zero. The goal here is to keep the magnetic coupling
small and, at the same time, keep the isolation distance
large. Moreover, to ensure that the layout meets the
VDD
Fly Wire
design’s required creepage and clearance
Bypass Capacitor
Gnd Pin
QFN Package
requirements, the VDD trace should be placed on one
of the inner layers or even the back side of the board.
For example, one can lay out the return VDD trace on
the other side of the PCB so the PCB itself can help to
provide high isolation voltage.
5V VDD Trace
Figure 10. QFN Layout Requirements
Preliminary Rev. 0.4
13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SI8501-C-IMR | 制造商:Silicon Laboratories Inc 功能描述:5A CURRENT SENSOR, SINGLE OUTPUT 1KV QFN12 - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:SENSOR CURRENT 5A 5.5V UNI 12QFN 制造商:Silicon Laboratories Inc 功能描述:5A Current Sensor Single Output 1kV |
| Si8501-C-IS | 功能描述:板上安装电流传感器 5A SINGLE OUTPUT 5kV RoHS:否 制造商:Honeywell 电流额定值:+/- 56 A 传感器/变换器类型: 电源电压:4.75 VDC to 5.25 VDC 响应时间:< 0.2 us 输出电压: 工作温度:- 40 C to + 85 C 准确性:+/- 0.24 % 频率范围: |
| SI8501-C-ISR | 制造商:Silicon Laboratories Inc 功能描述:5A CURRENT SENSOR, SINGLE OUTPUT 5KV SOIC20 - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:SENSOR CURR 5A 5.5V UNI 20SOIC 制造商:Silicon Laboratories Inc 功能描述:5A Current Sensor Single Output 5kV |
| SI-8501L | 制造商:Sanken Electric Co Ltd 功能描述:Switching Mode Regulator 5-Pin 制造商:Sanken Electric Co Ltd 功能描述:IC REG BUCK ADJ 1A EI-19 制造商:ALLEGRO 功能描述:IC, LINEAR VOLTAGE REGULATOR 5V TO-220-6, Primary Input Voltage:20V, Output Volt 制造商:Allegro MicroSystems LLC 功能描述:IC, LINEAR VOLTAGE REGULATOR 5V TO-220-6, Primary Input Voltage:20V, Output Voltage Min:4.8V, Output Voltage Max:5.2V, Output Voltage Fixed:5V, No. of Pins:6, No. of Outputs:1, Output Current:1A, Operating Temperature Min:-20C , RoHS Compliant: Yes |
| Si8502-B-GM | 功能描述:板上安装电流传感器 10A Current Sensr Single Out RoHS:否 制造商:Honeywell 电流额定值:+/- 56 A 传感器/变换器类型: 电源电压:4.75 VDC to 5.25 VDC 响应时间:< 0.2 us 输出电压: 工作温度:- 40 C to + 85 C 准确性:+/- 0.24 % 频率范围: |
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