The L6234 is a high performance DMOS power device, manufactured using Multipower BCD60II technology, and can be used in a wide range of applications. It has a wide input voltage range and a high output current.
This document is an application note for the L6234, a DMOS triple half-bridge driver designed for driving three-phase brushless motors. The device features an input supply voltage up to 52V and an output current of 5A, utilizing Multipower BCD60II technology to combine isolated DMOS transistors with CMOS and Bipolar circuits.
| Input supply voltage | up to 52V |
|---|---|
| Output current | 5A |
| Quiescent current | 6.5 mA typ. |
| Rdson | 300mW @ 25°C |
| Internal bandgap reference | 1.22V |
| Internal voltage reference | 10V |
| Thermal shutdown temperature | 160 °C |
| Hysteresis | 20 °C |
| Maximum switching frequency | 50kHz |
The recommended operating maximum supply voltage is 42V to prevent overvoltage applied to the DMOSFETs.
The switching frequency should be higher than 16kHz to avoid acoustic noises.