概览
描述
The RAA788152 5V half-duplex powered RS-485/RS-422 transceiver features high output drive and high EFT and ESD protection. The device is immune to ±5kV IEC 61000-4-4 EFT transients and can withstand up to ±16.5kV IEC 61000-4-2 ESD strikes without latch-up.
The RAA78815x family includes half and full-duplex transceivers with active-high driver-enable pins and active-low receiver-enable pins. These transceivers support data rates of 115kbps, 1Mbps, and 20Mbps with a performance that is characterized from -40 °C to +85 °C.
特性
- High VOD: 3.1V (Typ.) into RD = 54Ω
- ±5kV EFT immunity of bus I/O pins
- ±16.5kV ESD protection on bus I/O pins
- Supported data rates: 115kbps
- Full fail-safe outputs for open or shorted inputs
- Hot plug capability
- 1/8 unit load
- Allows for up to 512 transceivers on the bus
- Low supply current (driver disabled): 550μA
- Ultra-low shutdown current: 70nA
产品对比
应用
设计和开发
支持
常见问题
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测试 EFT 抗扰度的标准是什么？
IEC61000-4-4 定义了评估对电快速瞬变的系统抗扰度的测试标准。此标准定义了测试电压波形、测试电平范围、测试设备、测试设 ...
2021年10月11日 -
FT 是什么 ?
EFT 是脉冲群形式的电快速瞬变，源于电感负载的中断（切换）、继电器触点弹跳等导致的切换瞬变。 切断电源时，继电器、开关接 ...
2024年3月8日 -
哪些应用可能会遇到 EFT 问题？
这种类型的干扰有可能发生在大量不同的电气系统和器件中。继电器与电源的互连大大增加了潜在的电弧和电气瞬变 ...
2021年10月11日
视频和培训
Overview of the key features, advantages and target applications for the RAA78817x family of 3.3V RS-485/422 transceivers with +/-3kV EFT immunity and the RAA78815x family of 5V RS-485/422 transceivers with +/-5KV EFT immunity.