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What is UBA2017A?

This electronic component, produced by the manufacturer "NXP Semiconductors", performs the same function as "600V fluorescent lamp driver".


UBA2017A Datasheet PDF - NXP Semiconductors

Part Number UBA2017A
Description 600V fluorescent lamp driver
Manufacturers NXP Semiconductors 
Logo NXP Semiconductors Logo 


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UBA2017/UBA2017A
600 V fluorescent lamp driver with linear dimming function
Rev. 2 — 15 May 2012
Product data sheet
1. General description
The UBA2017/UBA2017A are high-voltage Integrated Circuits (IC) intended to drive
fluorescent lamps with filaments such as Tube Lamps (TL) and Compact Fluorescent
Lamps (CFL) in general lighting applications. The IC comprises 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
600 V.
The UBA2017/UBA2017A are supplied by a start-up bleeder resistor and a dV/dt supply
from the half-bridge circuit, or any other auxiliary supply derived from the half-bridge. The
supply current of the IC is low. An internal clamp limits the supply voltage.
2. Features and benefits
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
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
Hard switching/capacitive mode protection
Half-bridge overcurrent (coil saturation) protection
Lamp overvoltage (lamp removal) protection
Temperature protection

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UBA2017A equivalent
NXP Semiconductors
UBA2017/UBA2017A
600 V fluorescent lamp driver with linear dimming function
7. Functional description
7.1 Introduction
The UBA2017/UBA2017A is an integrated circuit for electronically ballasted fluorescent
lamps. It provides a half-bridge controller/driver with all the necessary functions for correct
preheat, ignition and on-state operation of the lamp. Several protection mechanisms are
incorporated to ensure the safe operation of the fluorescent lamp or a shutdown of the
complete ballast under any abnormal operating conditions or lamp failure.
7.2 Half-bridge driver
The IC incorporates drivers for the half-bridge switches and all related circuits such as
non-overlap, high-voltage level shifter, bootstrap circuit for the floating supply and hard
switching and capacitive mode detection.
The UBA2017/UBA2017A is designed to drive a half-bridge inverter with an inductive
load. The load consists typically of an inductor with a resonant capacitor and a TL or CFL.
A basic half-bridge application circuit driving a TL is shown in Figure 4 which also shows a
typical IC supply configuration with a start-up bleeder resistor and a dV/dt supply.
VBUS
VDD
UBA2017
UBA2017A
GHHB
SHHB
FSHB
GLHB
GND
Fig 4. Basic half-bridge and IC supply connection diagram
aaa-001479
UBA2017
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 15 May 2012
© NXP B.V. 2012. All rights reserved.
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Featured Datasheets

Part NumberDescriptionMFRS
UBA2017The function is 600V fluorescent lamp driver. NXP SemiconductorsNXP Semiconductors
UBA2017AThe function is 600V fluorescent lamp driver. NXP SemiconductorsNXP Semiconductors

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