Philips Semiconductors
HF full bridge driver IC
Product specification
UBA2033
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.
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.
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.
ORDERING INFORMATION
TYPE
NUMBER
UBA2033TS
NAME
SSOP28
PACKAGE
DESCRIPTION
plastic shrink small outline package; 28 leads; body width 5.3 mm
VERSION
SOT341-1
2002 Oct 08
2