NXP’s solution for a low cost backlight driver. This device
incorporates lamp control functions, protection circuits and
uses the cheaper NMOS power transistor for a lower overall
system cost.

UBA2072 key features
Constant frequency lamp current control principle
All NMOST full-bridge control
Integrated level shifters and bootstrap diodes
Resonant mode start-up for reliable lamp ignition
Wide lamp brightness level dimming range
Integrated PWM generator for analog, voltage controlled dimming
Digital PWM dimming option
Operating frequency can be synchronized to external reference frequency
Multi-controller synchronization option
Over-voltage and over-current protection
Ignition failure, hard-switching and arcing detection
Wide supply voltage range (9 to 30 V)
Available in both SOP-28 and SSOP-28 package

UBA2072 key benefits
Reduced system costs
Minimal external component count
Extensive set of protections

Key applications
CCFL/EEFL based LCD backlighting