AC800M 3BSE050198R1电源模块销售非实价销售励磁控

产品详情资料

 OPA858采用低压、高速BiCMOS工艺制造。这些小型几何器件的内部结击穿电压较低，因此，所有器件引脚都受到内部ESD保护二极管的保护，如图48所示。放大器的输入之间有两个反并联二极管，在超限或故障条件下对输入进行箝位。图48.内部ESD结构9.3.2反馈引脚OPA858引脚布局经过优化，以小化寄生电感和电容，这在高速模拟设计中至关重要。FB引脚（引脚1）内部连接到放大器的输出。FB引脚通过非连接（NC）引脚（引脚2）与放大器的反相输入端（引脚3）分离。NC销必须保持浮动。这种引脚布局有两个优点：1.反馈电阻器（RF）可以连接在封装同一侧的FB和IN引脚之间（见图49），而不是环绕封装。2.NC引脚产生的隔离通过增加引脚之间的物理间隔，将FB和IN引脚之间的电容耦合降至低。图49.FB和IN之间的RF连接-引脚频率（Hz）开环增益（dB）-15 0 15 30 45 60 75 90 100k 1M 10M 100M 1G 10G D204 AOL，40qC AOL，25qC AO，+125qC频率（赫兹）开环放大器（dB）-15 0 15 30 60 75 90 100 k 1M 100M 10G D205 AOL（V）AOL（典型）The OPA858 is fabricated on a low-voltage, high-speed, BiCMOS process. The internal, junction breakdown voltages are low for these small geometry devices, and as a result, all device pins are protected with internal ESD protection diodes to the power supplies as Figure 48 shows. There are two antiparallel diodes between the inputs of the amplifier that clamp the inputs during an overrange or fault condition. Figure 48. Internal ESD Structure 9.3.2 Feedback Pin The OPA858 pin layout is optimized to minimize parasitic inductance and capacitance, which is critical in highspeed analog design. The FB pin (pin 1) is internally connected to the output of the amplifier. The FB pin is separated from the inverting input of the amplifier (pin 3) by a no connect (NC) pin (pin 2). The NC pin must be left floating. There are two advantages to this pin layout: 1. A feedback resistor (RF) can connect between the FB and IN– pin on the same side of the package (see Figure 49) rather than going around the package. 2. The isolation created by the NC pin minimizes the capacitive coupling between the FB and IN– pins by increasing the physical separation between the pins. Figure 49. RF Connection Between FB and IN– Pins Frequency (Hz) Open-Loop Gain (dB) -15 0 15 30 45 60 75 90 100k 1M 10M 100M 1G 10G D204 AOL at 40qC AOL at 25qC AOL at +125qC Frequency (Hz) Open-Loop Gain (dB) -15 0 15 30 45 60 75 90 100k 1M 10M 100M 1G 10G D205 AOL (V) AOL (Typ.) 

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●使用前:

在操作和维护，安装设备之前，请阅读并严格遵守安全相关的信息。

Read and strictly follow safety-related information before operatingmaintainingand installing equipment.

●使用者要求:

必须从事安装，组装或维护设备等相关工控电气机械以及其他相关技术的人员。

Must be engaged in the installation,assembly or maintenance of equipment and other related industriacontroeectrica machinery and other related technica personne.应用范围:

应用于品牌本系列工业以及生产生活自动化设备产品。

Used in the brand of this series of industriaand production automation eauipment products

适用于场景:系统集成，非标定制，产线升级改造，原设备电气替换等等。

Suitable for scenarios:system integration,non-standard customizationproduction line upgrading and transformation,electrical replacement of original equipment,etc.

●操作人员:

应该由本品牌专业培训操作员来安装、操作和维修设备。专业人员具有技术能力强，熟悉安全信息和安全实施:

熟悉设备的安装加工、操作和维护:熟悉处理所有的潜在危险情况。

Equipment should be installed,operated and maintained by trained operators from the brand

●危险情况

警告

.请注意使用人员的人身安全。

●除了产品特性以及功能，还需了解产品的使用寿命环境。

●充分学习产品使用手册，否则非专业人员可能会造成人身危险。

Study the product instruction manual thoroughlyotherwise it may cause personal danger to non-professionals.

●服务行业

适用水泥，木业，石业，橡胶，石油，化工，发电，环保，水处理，制冷，交通，钢铁，食品，饮料，船舶，制冷等行业

Applicable to cementwood,stone,rubber,petroleumchemical, power generation,