The IDX 4803 and IDX 7505 are stepper motor drivers from TRINAMIC with a maximum current of 3.5A and 5.0A, supporting RS485 and step-direction interfaces
The IDX series from Trinamic are compact, rugged step‑/direction stepper motor driver modules. IDX 4803 supports up to 48 V and 3.5 A RMS, while IDX 7505 handles up to 75 V and 5 A RMS. Both modules can be controlled via an RS‑485 interface and offer up to 256 micro‑steps, sensorless stall detection, and multiple chopper modes.
The manual covers electrical and mechanical interfacing, operational ratings, wiring diagrams for step, direction, and RS‑485 connections, as well as procedures for getting started, firmware updates, and resetting to factory defaults. It also includes a life‑support policy disclaimer and a revision history for the documentation and firmware.
| Power supply voltage (IDX 4803) | 12‑48 V |
|---|---|
| Power supply voltage (IDX 7505) | 12‑75 V |
| Nominal RMS motor current (IDX 4803) | 0.5‑3.5 A |
| Nominal RMS motor current (IDX 7505) | 0.5‑5 A |
| Maximum step input frequency | 350 kHz |
| Operating temperature range | -25 °C to 70 °C |
The IDX 7505 can deliver up to 5 A RMS (7 A peak) motor current.
Run the TMCM013boot.exe program from the IDX folder and follow the RS‑485 update steps.
Power off the module, short‑circuit pins 1 and 3 on the 6‑pin connector, then power it on again.