GENERAL DESCRIPTION

The UBA2033 is a high voltage monolithic integrated circuit made in the EZ-HV SOI process. The circuit is designed for driving the MOSFETs in a full bridge configuration. In addition, it features a disable function, an internal adjustable oscillator and an external drive function with a low-voltage level shifter for driving the bridge. To guarantee an accurate 50% duty factor, the oscillator signal can be passed through a divider before being fed to the output driver.

FEATURES

• Full bridge driver circuit

• Integrated bootstrap diodes

• Integrated high voltage level shift function

• High voltage input for the internal supply voltage

• 550 V maximum voltage

• Bridge disable function

• Input for start-up delay

• Adjustable oscillator frequency

• Predefined bridge position during start-up.

APPLICATIONS

• The UBA2033 can drive (via the MOSFETs) any kind of load in a full bridge configuration

• The circuit is especially designed as a commutator for High Intensity Discharge (HID) lamps.