用于器件节点的 SN65HVD10x IO-Link PHY
1 特性
2 应用
- 适合于 IO-Link 器件节点
3 说明
SN65HVD101 和 ‘HVD102 IO-Link PHY 可实现针对工业点到点通信的 IO-LINK 接口。当此器件通过一个 3 线制接口连接至一个 IO-Link 主控器件时，主控器件能够发起通信并与远程节点交换数据，而此时 SN65HVD10X 则作为一个完整的通信物理层。
IO-Link 驱动器输出 (CQ) 可用于使用 EN 和 TX 输入引脚的推挽式高侧或低侧配置。PHY 接收器将 CQ 引脚上的 24V IO-Link 信号转换为 RX 引脚上的标准逻辑电平。使用一个简单并行接口在 PHY 与本地控制器之间接收和发送数据以及状态信息。
SN65HVD101 和 'HVD102 可实现针对过流、过压和过热条件的保护 特性 。可使用一个外部电阻器来设定 IO-Link 驱动器电流限值。如果出现一个短路电流故障，驱动器输出被内部限定，而 PHY 生成一个错误信号 (SC)。这些驱动器还执行一个过热关断特性，此特性保护器件不受高温故障的影响。
SN65HVD102 由一个 3.3V 或者 5V 本地单电源供电运行。SN65HVD101 集成了一个线性稳压器，此稳压器从 IO-Link L+ 电压中生成 3.3V 或 5V 电压，为 PHY 以及一个本地控制器和附加电路供电。
针对空间受限类 应用，SN65HVD101 和 'HVD102 采用 20 引脚 RGB 封装 (4 mm × 3.5 mm QFN)。
器件信息(1)
| 器件型号 | 封装 | 封装尺寸（标称值） |
|---|---|---|
| SN65HVD101 | QFN (20) | 4.00mm × 3.50mm |
| SN65HVD102 |
- 要了解所有可用封装，请参见数据表末尾的可订购米6体育平台手机版_好二三四附录。
4 修订历史记录
Changes from C Revision (February 2017) to D Revision
- Changed From: 950 mW To: 950 W, and From: 475 mW To: 475 W in the TVS Evaluation section Go
Changes from B Revision (April 2015) to C Revision
- Changed pin 1 of the SN65HVD102 From: nc To: Vcc SET Go
Changes from A Revision (March 2013) to B Revision
- Added 器件信息 和 ESD 额定值 表、特性 说明 部分、器件功能模式、应用和实施 部分、电源相关建议 部分、布局 部分、器件和文档支持 部分以及机械、封装和可订购信息 部分。Go
- Changed 首页简化原理图。Go
- Changed Pin Functions table format Go
- Re-write detailed description section. Go
- Re-write application information section. Go
Changes from * Revision (May 2011) to A Revision
- 将器件从“米6体育平台手机版_好二三四预览”更改为了“生产”Go
5 Device Comparison Table
| DEVICE | VOLTAGE REGULATOR |
|---|---|
| SN65HVD101 | Yes |
| SN65HVD102 | No |
6 Pin Configuration and Functions
Pin Functions
| PIN | DESCRIPTION | ||
|---|---|---|---|
| NAME | NUMBER | TYPE(1) | |
| IO-Link Interface | |||
| L+ | 10 | P | IO-Link supply voltage (24V nominal) |
| CQ | 12 | I/O | IO-Link data signal (bi-directional) |
| L– | 14 | P | IO-Link ground (connect to board ground) |
| Local Controller Interface | |||
| CUR_OK | 15 | OD | High-CQ-current fault indicator output signal from PHY to the microcontroller. Connect this pin via pull-up resistor to Vcc OUT. A LOW level indicates over-current condition. |
| WAKE | 16 | OD | Wake up indicator from the PHY to the local controller Connect this pin via pull-up resistor to Vcc OUT. |
| RX | 17 | O | PHY receive data output to the local controller |
| TX | 18 | I | PHY transmit data input from the local controller |
| EN | 20 | I | Driver enable input signal from the local controller |
| Power Supply Pins | |||
| VCC IN | 7 | A | Voltage supply input for SN65HVD102 Voltage sense feedback input for the voltage regulator of the SN65HVD101. Connect this pin to pin 8 either directly or through a current boost transistor. |
| VCC OUT | 8 | P | Not connected in SN65HVD102 Linear regulator output of SN65HVD101. Connect this pin to pin 7 either directly or through a current boost transistor. |
| GND | 3, 6, 13 | P | Logic ground potential |
| Special Connect Pins | |||
| VCC SET | 1 | I | Connect this pin to ground to make Vcc OUT = 3.3V. Leave this pin floating to make Vcc OUT = 5V. |
| ILIMADJ | 4 | A | Input for current limit adjustment. Connect resistor RSET between this pin and ground. For RSET values see Figure 2. |
| PWR_OK | 5 | OD | Power-Good indicator. Connect this pin via pull-up resistor to Vcc OUT. A HIGH at this pin indicates that L+ and Vcc OUT are at correct levels. |
| Temp_OK | 19 | OD | Temperature-Good indicator. Connect this pin via pull-up resistor to Vcc OUT. High-impedance at this pin indicates that the internal temperature is at a safe level. A low at this pin indicates the device is approaching thermal shutdown. |
| NC | 2, 9, 11 | – | No Connection. Leave these pins floating (open) |