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UBA2071AT
Half bridge control IC for CCFL backlighting
The UBA2071 and UBA2071A are high voltage ICs intended to drive Cold Cathode Fluorescent Lamps (CCFLs) or External Electrode Fluorescent Lamps (EEFLs) for backlighting applications. They can drive a half bridge circuit made up of two NMOSFETs with a supply voltage of up to 550 V, so the inverter can be supplied directly from a 400 V PFC bus.
Features and benefits
Arcing detection.
Brightness level adjustment through PWM dimming.
Communication pin for master / slave operation.
Hard switching control.
Ignition failure detection.
Integrated, programmable fault timer.
Integrated bootstrap diode.
Integrated level shifter.
Integrated PWM generator.
Open/short pin protections on feedback pins.
Overcurrent protection.
Overvoltage control.
Power-down mode.
Suitable for operating in a very wide inverter supply voltage range (up to 550 V DC).
应用
LCD-backlighting, including LCD-TV and LCD-monitor applications