The L6225, L6226, L6227 are dual full-bridge driver ICs specifically developed to drive a wide range of motors. These ICs are one-chip, cost-effective solutions that include several unique circuit design features. These features allow the devices to be used in many applications including DC and stepper motor driving.
The document describes the L6225, L6226, and L6227 as highly integrated mixed-signal power ICs designed to drive two-phase bipolar stepper motors, multiple DC motors, and various inductive loads. These devices feature eight power DMOS transistors per chip along with unique circuit design features such as protection circuits and PWM current control.
| Trip point overcurrent protection (L6225) | 2.8 A |
|---|---|
| Trip point overcurrent protection (L6227) | 2.8 A |
They are specifically developed to drive a wide range of motors including DC and stepper motors.
The overcurrent protection trip point is set at 2.8 A for both the L6225 and L6227.
It uses a constant tOFF PWM current control technique for each of the two full bridges.
It allows adjusting the trip point for each bridge using external resistors and connects internal MOSFETs to separate OCD pins.