UBA2070P datasheet(2/20 Pages) PHILIPS

2 / 20 page

2002 Oct 24

Philips Semiconductors

Product speciﬁcation

600 V CCFL ballast driver IC

UBA2070

FEATURES

• Current controlled operation

• Adaptive non-overlap time control

• Integrated high voltage level shift function

• Power-down function

• Protected against lamp failures or lamp removal

• Capacitive mode protection.

APPLICATION

• The circuit topology enables a broad range of backlight

inverters.

GENERAL DESCRIPTION

The UBA2070 is a high voltage integrated circuit for driving

electronically ballasted Cold Cathode Fluorescent Lamps

(CCFL) at mains voltages up to 277 V (RMS) (nominal

value). The circuit is made in a 650 V Bipolar CMOS

DMOS (BCD) power logic process. The UBA2070

provides the drive function for the two discrete MOSFETs.

Besides the drive function the UBA2070 also includes the

level-shift circuit, the oscillator function, a lamp voltage

monitor, a current control function, a timer function and

protections.

ORDERING INFORMATION

TYPE NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

UBA2070T

SO16

plastic small outline package; 16 leads; body width 3.9 mm

SOT109-1

UBA2070P

DIP16

plastic dual in-line package; 16 leads (300 mil); long body

SOT38-1

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