Infineon’s NovalithIC™ IFX007T is a half-bridge with integrated driver IC for use in industrial, consumer and other types of brushed and brushless motor drives. It provides a cost- and space-optimized solution for high-current PWM motor drives while offering comprehensive protection against system faults.
The IFX007T contains one P-channel high-side MOSFET, one N-channel low-side MOSFET and a driver IC integrated in a single package. The use of a P-channel high-side switch eliminates the need for a charge pump, thus keeping EMI to low levels. The IFX007T also integrates various monitoring and protection features, reducing the need for external passive components. These include:
- Diagnosis with current sense
- Slew-rate adjustment for optimized EMI
- Dead-time generation
- Over-temperature protection
- Under-voltage protection
- Over-current protection
- Short-circuit protection
Motor-drive application diagrams
In addition, logic-level inputs make for a simple interface to a host microcontroller operating at 3.3V or 5V. The IFX007T is flexible enough to be used in various motor types' half- or H-bridge configurations, and with PWM control and freewheeling from either the high side or the low side
When twin IFX007T devices are used in an H-bridge configuration, they provide redundancy to support functional safety compliance.
Block diagram for the NovalithIC™ IFX007T