STMicroelectronics EVAL6207Q

Overview

EVAL6207Q from STMicroelectronics is an evaluation board for the L6207Q dual full-bridge motor driver IC, designed to validate stepper and DC motor control functionality in lab and prototyping environments. It supports 8–52 V supply, delivers up to 2.5 A_r.m.s. per phase, features adjustable constant t_OFF PWM current control, and interfaces with PractiSPIN™ 2 software via STEVAL-PCC009V2.

For engineers reviewing the EVAL6207Q datasheet, EVAL6207Q pinout, EVAL6207Q application, or EVAL6207Q equivalent, this board enables rapid validation of dual-bridge motor drive topologies, current regulation accuracy, fault signaling behavior, and logic-level compatibility (3.3 V/5 V) under real thermal and switching conditions.

Technical Context

The EVAL6207Q implements the L6207Q's dual H-bridge architecture with independent PWM current controllers per bridge, supporting both bipolar stepper (two-phase) and four unidirectional DC motor configurations. It routes all critical control signals-including ENA/ENB, IN1A/IN2A/IN1B/IN2B, OC thresholds (J2 pins 11–12), and SENSE outputs (J9 pins 2–3)-to accessible headers and test points.

Thermal performance is enhanced by the QFN7×7_48L package of the U1 L6207Q IC and optimized PCB layout with inner-layer copper planes; junction-to-ambient thermal resistance is specified at 17 °C/W. The board operates across –25 to +125 °C ambient, with switching frequencies up to 100 kHz.

Key Specifications

Availability

EVAL6207Q is available at Aetrix Electronics and suitable for stepper motor prototyping, industrial actuator development, and multi-motor DC drive validation requiring stable component supply and documented reference design support.

Supply support for EVAL6207Q includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader specializing in power management, motion control, and microcontroller solutions for industrial, automotive, and consumer applications.

The EVAL6207Q belongs to ST's motor control evaluation platform family, engineered to accelerate adoption of the L6207Q dual full-bridge driver in precision motion systems where integrated current regulation and flexible interface options are required.

FAQ

Is EVAL6207Q a standalone motor driver IC?

No. EVAL6207Q is an evaluation board-not an IC-built around the L6207Q dual full-bridge driver IC (U1). It provides connectors, trimmers, test points, and layout-optimized thermal design to demonstrate and validate the L6207Q's operation, but requires external power, logic control, and host communication hardware (e.g., STEVAL-PCC009V2) to function.

What motor types can be tested with EVAL6207Q?

EVAL6207Q supports two configurations: (1) one two-phase bipolar stepper motor using both bridges in coordinated mode, or (2) up to four independent unidirectional DC motors-one per half-bridge. It does not support bidirectional DC motor control per channel, as each bridge is used as a pair of switches rather than a full reversible H-bridge per motor.

How is current regulation adjusted on this board?

Current regulation is set via two onboard potentiometers (P1 and P2), connected to J2 pins 11 and 12. These adjust the V_REF voltage applied to the L6207Q's internal comparators, directly determining the peak current limit per bridge. The relationship between R_OFF, C_OFF, and t_OFF is documented in Figure 8 of the data brief for precise timing calibration.

Does EVAL6207Q include current sense feedback circuitry?

Yes. J9 provides access to SENSEA and SENSEB analog outputs (pins 2 and 3), corresponding to the L6207Q's internal current-sense amplifier outputs. External RC filtering (R22/C12 and R23/C13) must be added per datasheet guidance to condition these signals for ADC sampling or analog monitoring in the host system.