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UBA2024P View Datasheet(PDF) -

Part Name
Description
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UBA2024P
 
UBA2024P Datasheet PDF : 0 Pages
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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