UBA2017A Description
The UBA2017/UBA2017A are high-voltage Integrated Circuits (IC) intended to drive fluorescent lamps with filaments such as Tube Lamps (TL) and pact Fluorescent Lamps (CFL) in general lighting applications. The IC prises a fluorescent lamp control module, half-bridge driver and several protection mechanisms. The IC drives fluorescent lamps using a half-bridge circuit made of two MOSFETs with a supply voltage of up to...
UBA2017A Key Features
- Half-bridge driver features
- Integrated level-shifter for the high-side driver of the half-bridge
- Integrated bootstrap diode for the high-side driver supply of the half-bridge
- Independent non-overlap time
- Fluorescent lamp controller features
- Linear dimming (UBA2017A only)
- EOL (End-Of-Life) detection (both symmetrical and asymmetrical)
- Adjustable preheat time
- Adjustable preheat current
- Adjustable fixed frequency preheat
UBA2017A Applications
- Half-bridge driver features: Integrated level-shifter for the high-side driver of the half-bridge Integrated bootstrap diode for the high-side driver supply
- Fluorescent lamp controller features: Linear dimming (UBA2017A only) EOL (End-Of-Life) detection (both symmetrical and asymmetrical) Adjustable preheat ti
- Protection Hard switching/capacitive mode protection Half-bridge overcurrent (coil saturation) protection Lamp overvoltage (lamp removal) protection Tem
- Intended for fluorescent lamp ballasts with either a UBA2017A dimmable or a UBA2017 fixed output for AC mains voltages up to 390 V