TIOL221RGER - Dual-Channel IO-Link PHY, LDO, SPI | Texas Instruments
料号： TIOL221RGER ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.2 | $3.20 |
| 10 | $2.88 | $28.80 |
| 100 | $2.45 | $245.00 |
| 500 | $2.1 | $1,050.00 |
| 1,000 | $1.85 | $1,850.00 |
TIOL221RGER 概述
An IO-Link transceiver is a specialized interface IC that bridges a local microcontroller to the IO-Link communication standard, enabling point-to-point communication between sensors or actuators and an IO-Link master. It converts MCU digital data into IO-Link physical layer signals on the CQ line and vice versa while adding power management and protection. In the component hierarchy it sits as: IO-Link PHY -> industrial communication interface -> sensor interface IC -> mixed-signal semiconductor.
Key features include dual-channel operation for two independent IO-Link ports in one package, an integrated LDO that simplifies power design, SPI-based configuration and diagnostics, and wake-up support: the device can sink or source at least 500 mA for the wake-up duration (typically 80 microseconds) depending on the CQ logic level, then asserts the WU pin low for tWUL to notify the local MCU. Surge robustness reaches 1.2 kV (500 ohm) per IEC 61000-4-5.
Technically, the TIOL221 provides fault reporting and internal protection for undervoltage, overcurrent, and overtemperature conditions, and can be configured to generate wake-up pulses, also supporting IO-Link master applications. An auxiliary DI channel adds digital input functionality. Active reverse polarity protection removes the need for external series diodes, reducing voltage drop and bill-of-material cost.
Typical applications include industrial proximity, pressure, and temperature sensors, actuators, and IO-Link master port circuitry. The dual-channel capability halves board area versus two single-channel PHYs.
Design tip: decouple the integrated LDO carefully and configure wake-up timing per the IO-Link specification; external TVS diodes may still be needed for surge levels beyond the built-in protection.
直接替换替代料： TIOL221RGER ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
TIOL1125
⚡ 相同封装✓ 有现货
$1.29 / 个
查看数据手册 →TIOL1115RGER
⚡ 相同封装 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TIOL221RGER 规格参数
| 功能 | Dual-channel IO-Link device PHY transceiver |
| 通道数 | 2 (Tx/Rx) plus auxiliary DI |
| Protocol | IO-Link (three-wire interface) |
| Integrated LDO | Yes |
| Control Interface | SPI |
| Wake-Up Current Capability | >= 500 mA (typ. 80 us duration) |
| Wake-Up Pulse Generation | Yes, configurable |
| Surge Immunity | 1.2 kV (500 ohm) per IEC 61000-4-5 |
| Protection Features | Reverse polarity (active), undervoltage, overcurrent, overtemperature |
| IO-Link Master Support | Yes |
| 封装 | 24-VQFN (4x4 mm), RGE |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
TIOL221RGER 引脚配置
| 引脚 [DATA_NEEDED] | LDO_OUT — Integrated LDO output powering internal logic and external MCU |
| 引脚 [DATA_NEEDED] | VDD — Supply input from IO-Link L+ line |
| 引脚 [DATA_NEEDED] | CQ1 — Channel 1 CQ line driver/receiver |
| 引脚 [DATA_NEEDED] | CQ2 — Channel 2 CQ line driver/receiver |
| 引脚 [DATA_NEEDED] | WU — Wake-up indicator to MCU (asserted low for tWUL) |
| 引脚 [DATA_NEEDED] | DI — Auxiliary digital input channel |
| 引脚 [DATA_NEEDED] | SPI (CS/SCLK/MOSI/MISO) — SPI configuration and diagnostics interface |
| 引脚 [DATA_NEEDED] | GND — Ground |
典型应用
TIOL221RGER 适用于 6 应用s: Industrial Proximity Sensors, IO-Link Master Stations, Pressure and Temperature Sensor Nodes, Actuator Control Modules, Motor Feedback and Encoder Interfaces, IIoT Sensor Hubs and Gateways.
Industrial Proximity Sensors
The TIOL221 fits IO-Link proximity sensor nodes because its dual low-power output drivers drive the three-wire L+/CQ interface directly while its active reverse polarity protection survives miswiring during installation. The >= 500 mA wake-up capability for ~80 microseconds meets IO-Link wake requirements without external power switches. The integrated LDO powers the sensor MCU from the 24V industrial rail, and the auxiliary DI channel can read a second sensor element, reducing external logic. Surge robustness of 1.2 kV (500 ohm) per IEC 61000-4-5 addresses cable-borne transients common on factory floors.
推荐
IO-Link Master Stations
The TIOL221 can be used in IO-Link master applications: it is configured to generate wake-up pulses, sinking or sourcing at least 500 mA for the typical 80 microsecond wake duration depending on CQ logic level. Two integrated channels let a master board drive two ports with one IC, halving PHY area versus discrete solutions. SPI control lets a host MCU configure each port independently and read fault status (undervoltage, overcurrent, overtemperature). Active reverse polarity protection protects master ports against field miswiring, improving mean time between failures in modular I/O systems.
推荐
Pressure and Temperature Sensor Nodes
For smart pressure and temperature transmitters, the TIOL221 provides the complete IO-Link physical layer: it converts MCU SPI-configured data to CQ-line signaling and reports wake events via the WU pin for tWUL. The integrated LDO derives low-noise logic power from the 24V line, and built-in overcurrent and overtemperature protection guards against shorted field cables. Designers pair the PHY with a precision ADC and MCU; the PHY's fault reporting lets the transmitter firmware flag diagnostic codes back to the PLC via IO-Link, supporting predictive maintenance schemes required in process industries.
推荐
Actuator Control Modules
Pneumatic valves, solenoids, and indicator actuators over IO-Link use the TIOL221's drivers to switch the CQ line between logic levels while its >= 500 mA capability covers the inrush of wake pulses. The SPI interface enables per-port configuration of driver modes and real-time diagnostics, letting the controller detect open-wire or overtemperature faults and report them per IO-Link ISDU parameters. Dual channels allow one IC to control two actuator ports in compact valve manifolds. The active reverse polarity protection is valuable in panel wiring where supply polarity errors occur during commissioning.
推荐
Motor Feedback and Encoder Interfaces
Industrial encoders with IO-Link interfaces benefit from the TIOL221's robust PHY: 1.2 kV (500 ohm) surge immunity per IEC 61000-4-5 handles transients on long motor cables, and the undervoltage lockout prevents corrupted transmissions during brownouts. The device acts as the complete physical layer between the encoder ASIC/MCU and the three-wire IO-Link port, with the WU output letting encoder firmware wake from sleep on master requests to minimize power. The dual-channel version also supports auxiliary output signals alongside the IO-Link channel in hybrid encoder designs.
推荐
IIoT Sensor Hubs and Gateways
In Industry 4.0 gateways aggregating multiple IO-Link devices, the TIOL221's dual channels reduce PHY component count: four ICs provide eight ports versus eight single-channel PHYs, cutting board area and cost. SPI bus configuration allows a central MCU to manage all PHYs and poll fault registers over the same SPI lines. Integrated protection (overcurrent, overtemperature, reverse polarity) plus 1.2 kV surge robustness suits the electrically noisy environments of dense industrial cabinets. The TIOL221EVM accelerates firmware bring-up of multi-port gateway designs before custom hardware.
推荐
推荐产品汇总
工程参考数据： TIOL221RGER ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | TIOL1125 | TIOL1115RGER | TIOL1115DMRR |
|---|---|---|---|---|
| Package | 24-VQFN (4x4 mm) | VQFN (RGE) family | 24-VQFN (4x4 mm) | SON-8 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Channels | 2 (dual) + auxiliary DI | 1 | 1 | 1 |
| Integrated LDO | Yes | Yes | Yes | Yes |
| Configuration Interface | SPI | SPI/I2C-style per datasheet | UART/parallel control | UART/parallel control |
关键差异点
- Dual-channel integration （对比 TIOL1115RGER)
- SPI-based configuration and diagnostics （对比 TIOL1115DMRR)
- Integrated LDO plus active reverse polarity protection （对比 TIOL1125)
设计说明
Decouple the integrated LDO output with local ceramic capacitance per the TI TIOL221 datasheet and keep the LDO output trace short to the MCU supply pin. The PHY drives >= 500 mA wake pulses on CQ, so bulk capacitance on the L+ supply input must sustain the ~80 microsecond wake current without drooping below undervoltage thresholds, or false fault flags may occur.
Place the TIOL221 close to the IO-Link connector with a solid ground return for the CQ lines. Keep SPI traces short and route away from CQ switching paths. Although the device tolerates 1.2 kV (500 ohm) surge per IEC 61000-4-5, add external TVS diodes on L+ and CQ when the installation demands higher surge levels than the built-in protection.
Configure wake-up timing parameters (tWUL and the ~80 microsecond wake duration) per the IO-Link specification through the SPI interface; default register settings may not match your master or device role. Remember that wake current polarity depends on CQ logic level - sink or source mode must match your port wiring, or wake detection will fail.
合规信息
RoHS compliance per DigiKey/TI listings for TIOL221RGER. REACH and halogen-free status not stated in provided data.
