Datasheet

Circuit description L6234
8/16 Doc ID 1107 Rev 10
6 Circuit description
L6234 is a triple half bridge designed to drive brushless DC motors. Each half bridge has 2
power DMOS transistors with R
DSon
= 0.3 Ω.
The 3 half bridges can be controlled independently by means of the 3 inputs IN1, IN2, IN3
and the 3 inputs EN1, EN2, and EN3. An external connection to the 3 common low side
DMOS sources is provided to connect a sensing resistor for constant current chopping
application.
The driving stage and the logic stage are designed to work from 7 V to 52 V.