UBA2017AP/1,112 NXP Semiconductors, UBA2017AP/1,112 Datasheet - Page 5

• Manufacturer Part Number: UBA2017AP/1,112
• Description: Display Drivers & Controllers SMPS CTRLR 12.4V
• Manufacturer: NXP Semiconductors

Specifications of UBA2017AP/1,112

• Rohs: yes
• Operating Supply Voltage: 12.4 V
• Mounting Style: Through Hole
• Package / Case: DIP-16
• Maximum Output Current: 105 mA
• Product: Fluorescent Lamp Driver
• Factory Pack Quantity: 25
• Supply Current: 2.2 mA

NXP Semiconductors
7. Functional description
UBA2017
Product data sheet
7.1 Introduction
7.2 Half-bridge driver
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.
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
typical IC supply configuration with a start-up bleeder resistor and a dV/dt supply.
Fig 4.
Basic half-bridge and IC supply connection diagram
All information provided in this document is subject to legal disclaimers.
V BUS
Rev. 2 — 15 May 2012
UBA2017A
UBA2017
600 V fluorescent lamp driver with linear dimming function
VDD
GND
GHHB
SHHB
FSHB
GLHB
UBA2017/UBA2017A
Figure 4
aaa-001479
which also shows a
© NXP B.V. 2012. All rights reserved.
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