NXP USA Inc. UBA2017AP/1,112

Description
The UBA2017/UBA2017A are high-voltage Integrated Circuits (ICs) designed to drive fluorescent lamps with filaments, such as Tube Lamps (TL) and Compact Fluorescent Lamps (CFL), in general lighting applications. The ICs incorporate a fluorescent lamp control module, half-bridge driver, and various protection mechanisms. They drive fluorescent lamps using a half-bridge circuit consisting of two MOSFETs with a supply voltage of up to 600 V.

Features

Half-Bridge Driver Features:
Integrated level-shifter for the high-side driver
Integrated bootstrap diode for the high-side driver supply
Independent non-overlap time

Fluorescent Lamp Controller Features:
Linear dimming (UBA2017A only)
End-Of-Life (EOL) detection (symmetrical and asymmetrical)
Adjustable preheat time
Adjustable preheat current
Adjustable fixed frequency preheat
Lamp ignition failure detection
Ignition detection of all lamps at multiple lamps with separate resonant tanks
Second ignition attempt if first failed
Constant output power independent of mains voltage variations
Automatic restart after changing lamps
Lamp current control
Enable input

Protection Features:
Hard switching/capacitive mode protection
Half-bridge overcurrent (coil saturation) protection
Lamp overvoltage (lamp removal) protection
Temperature protection

Applications
General lighting applications using fluorescent lamps with filaments, such as Tube Lamps (TL) and Compact Fluorescent Lamps (CFL)