TIOL1125 - IO-Link Transceiver with 5V LDO | Texas Instruments
MPN: TIOL1125 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.05 | $2.05 |
| 10 | $1.84 | $18.40 |
| 100 | $1.55 | $155.00 |
| 500 | $1.3 | $650.00 |
| 1,000 | $1.1 | $1,100.00 |
Drop-in alternatives for TIOL1125 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TIOL1123DRCR
β Drop-Inπ Reference alternative (not in catalog)
TIOL1115DRCR
β Drop-Inπ Reference alternative (not in catalog)
TIOL111DRCR
β Drop-Inπ Reference alternative (not in catalog)
TIOL1125 Maximum Ratings & Electrical Characteristics
| Function | IO-Link device transceiver |
| Supply Voltage Range (L+) | 7 V to 36 V |
| Integrated LDO Output | 5 V |
| Output Type | PNP, NPN or IO-Link configurable |
| IO-Link Data Rates | COM1, COM2, COM3 (IEC 61131-9) |
| Residual Voltage | 0.5 V typical at 200 mA |
| Surge Protection | Integrated |
| Current Limiter | Configurable |
| Wake-up Support | Remote wake-up indication and generation |
| Functional Safety | Functional safety-capable (documentation available) |
| Pin Compatibility | TIOL111 family |
| Package | 10-VSON (3x3 mm) DRC |
| Mounting Type | Surface Mount |
| Category | Drivers, Receivers, Transceivers - Sensor Interface |
| RoHS Status | Compliant |
TIOL1125 Pin Configuration
| Pin 1 | L+ β IO-Link positive supply input (7 V to 36 V) |
| Pin 2 | L- β IO-Link ground return |
| Pin 3 | C/Q β Switching/communication line driver output (PNP, NPN, IO-Link) |
| Pin 4 | VCC β Integrated 5-V LDO output for external circuitry |
| Pin 5 | TX β Transmit data input from MCU (IO-Link data) |
| Pin 6 | RX β Receive data output to MCU (IO-Link data) |
| Pin 7 | EN/MODE β Output mode control (PNP/NPN/IO-Link configuration) |
| Pin 8 | WAKE β Wake-up indication / generation |
| Pin 9 | I/Q β Receiver input / secondary switching line |
| Pin 10 | GND β Device ground / thermal pad reference |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TIOL1125 is suitable for 6 applications: IO-Link Industrial Sensors, Industrial Actuators and Valve Positioners, Factory Automation Networks, Process Control Instrumentation, Smart Sensor Retrofit and IIoT Nodes, Motor and Drive Auxiliary IO.
IO-Link Industrial Sensors
The TIOL1125 is purpose-built for IO-Link device nodes in proximity, photoelectric, and level sensors. Its 7-V to 36-V supply range directly accommodates the 24-V industrial cable voltage, while the integrated surge protection handles cable transients that would otherwise require external TVS diodes. The 5-V LDO powers the sensor microcontroller from the L+ rail, and the 0.5-V typical residual voltage at 200 mA reduces power dissipation inside compact sensor housings. COM1/COM2/COM3 support per IEC 61131-9 ensures interoperability with any IO-Link master port class.
Recommended
Industrial Actuators and Valve Positioners
For actuators and valve positioners on IO-Link networks, the TIOL1125 provides the PNP/NPN/IO-Link configurable C/Q driver needed to switch loads or communicate digitally. The configurable current limiter protects the driver against short circuits in wiring faults, and remote wake-up indication allows the device to be woken from low-power states by the master. The 36-V maximum supply gives headroom above nominal 24-V rails, and the integrated protection reduces BOM count in sealed actuator housings where PCB space and reliability are critical.
Recommended
Factory Automation Networks
In factory automation installations with many IO-Link drops, the TIOL1125's IEC 61131-9 COM1, COM2, and COM3 support lets one design cover all port classes from 4.8 kbps to 230.4 kbps. Functional-safety-capable documentation supports system-level safety assessments in machinery. The low residual voltage lowers per-node heat across dense I/O cabinets, and the pin-compatible TIOL111/TIOL1123 family lets one PCB layout serve 3-V and 5-V MCU variants, simplifying multi-product platform designs across an entire sensor fleet.
Recommended
Process Control Instrumentation
Process transmitters and field instruments benefit from the TIOL1125's robust physical layer: the 7-V to 36-V operating range tolerates long cable drops and voltage sag, integrated surge protection withstands inductive coupling from nearby equipment, and the wide-temperature industrial qualification supports field-mounted enclosures. The 5-V LDO output supplies the instrument's microcontroller and analog front end, reducing external regulator count. COM3 support at 230.4 kbps enables faster parameterization and diagnostic data transfer during commissioning cycles.
Recommended
Smart Sensor Retrofit and IIoT Nodes
Retrofitting legacy 3-wire PNP/NPN sensors into IO-Link networks is a key TIOL1125 use case: the configurable output supports classic PNP or NPN switching when connected to conventional inputs and switches to IO-Link communication when connected to an IO-Link master, per IEC 61131-9 behavior. This dual-mode capability lets one hardware design serve both legacy and smart-network markets. Remote wake-up generation and indication plus the small 3x3 mm VSON package fit into existing sensor mechanical designs without redesign.
Recommended
Motor and Drive Auxiliary IO
Variable frequency drives and motor starters use IO-Link for parameter setting, diagnostics, and condition monitoring. The TIOL1125 supplies the IO-Link device port for auxiliary boards, with the integrated surge protection surviving the electrically noisy drive cabinet environment and the 36-V rating covering rail transients. The configurable current limiter protects against wiring errors during installation, and the functional-safety-capable documentation assists drive manufacturers pursuing safety-rated communication architectures in compliance with their functional safety certification goals.
Recommended
Recommended Products Summary
Engineering reference data for TIOL1125 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TIOL1123DRCR | TIOL1115DRCR | TIOL111DRCR |
|---|---|---|---|---|
| Package | 10-VSON (3x3 mm) | 10-VSON (3x3 mm) - same | 10-VSON (3x3 mm) - same | 10-VSON (3x3 mm) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Supply Voltage Range | 7 V to 36 V | 7 V to 36 V | 7 V to 36 V | 7 V to 36 V |
| Integrated LDO Output | 5 V | 3 V | 5 V | [DATA_NEEDED] |
| Residual Voltage | 0.5 V typ at 200 mA | low residual voltage (improved generation) | [DATA_NEEDED] | [DATA_NEEDED] |
| IO-Link Data Rates | COM1, COM2, COM3 | COM1, COM2, COM3 | COM1, COM2, COM3 | COM1, COM2, COM3 |
| Integrated Surge Protection | Yes | Yes | Yes | Yes |
| Functional Safety-Capable | Yes | Yes | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Low residual voltage of 0.5 V typical at 200 mA (vs TIOL111DRCR)
- Integrated 5-V LDO for powering external components (vs TIOL1123DRCR)
- Functional-safety-capable with supporting documentation (vs TIOL111DRCR)
Design Notes
Place 100-nF decoupling capacitors directly at the L+ and L- pins and the LDO output bulk capacitor (1 uF to 10 uF ceramic) close to the VCC pin to guarantee LDO loop stability. The VSON-10 exposed pad should be soldered to a grounded copper pour for thermal relief and surge current handling; TI's TIOL1125 evaluation module layout can be used as a reference design starting point.
Although the TIOL1125 integrates surge protection, verify the protection level against your system EMC test requirements (surge, burst/EFT, ESD per IO-Link test specification). In very harsh installations, add a series ferrite and small TVS on the cable entry even with the integrated protection to reduce radiated emissions from the C/Q switching edges.
The TIOL1123 is a pin-for-pin drop-in but provides a 3-V LDO, not 5 V - do not substitute it in a design whose MCU requires 5 V. Set the configurable current limit to match your actuator load to avoid nuisance tripping during capacitive load startup. Ensure wake-up and TX/RX lines are correctly biased during MCU reset to prevent spurious wake-up reports to the master.
Compliance Information
RoHS compliance per TI product page; detailed REACH/halogen status should be confirmed on TI.com quality pages.
