UBA2024(2004) 查看數據表（PDF） - Philips Electronics

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UBA2024
(Rev.:2004)

Half-bridge power IC for CFL lamps

Philips Electronics 

Philips Semiconductors

Half-bridge power IC for CFL lamps

Product specification

UBA2024

FEATURES

• Integrated half-bridge power transistors

• Integrated bootstrap diode

• Integrated low-voltage supply

• Maximum voltage of 550 V

• Adjustable oscillator frequency

• Soft start

• Minimum glow time control.

APPLICATIONS

• Driver for any kind of load in a half-bridge configuration

• Especially for electronically self-ballasted Compact

Fluorescent Lamps (CFL) for lamp currents up to

220 mA (RMS) under the restriction that the maximum

junction temperature is not exceeded.

GENERAL DESCRIPTION

The UBA2024 is a high-voltage monolithic integrated

circuit made in the EZ-HV SOI process. The IC is designed

for driving CFL lamps in a half-bridge configuration.

The IC features a soft start function, an adjustable internal

oscillator and an internal drive function with a high-voltage

level shifter for driving the half-bridge.

To guarantee an accurate 50% duty cycle, the oscillator

signal is passed through a divider before being fed to the

output drivers.

ORDERING INFORMATION

TYPE

NUMBER

UBA2024P

NAME

DIP8

PACKAGE

DESCRIPTION

plastic dual in-line package; 8 leads (300 mil)

VERSION

SOT97-1

BLOCK DIAGRAM

UBA2024

VDD CONTROL

7

VDD

1

SW

SWEEP AND

GLOW TIME CONTROL

VDD(stop)

HIGH VOLTAGE

LEVEL SHIFTER

8

RC

OSCILLATOR

DIVIDE-BY-2

DEAD TIME

2

SGND

6 HV

3 FS

HS

HIGH SIDE

DRIVER

LOW SIDE

DRIVER

5

LS

4

mdb029

OUT

PGND

2004 Feb 03

Fig.1 Block diagram.

2

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