IR2520DS Datasheet PDF - International Rectifier
| Part Number | IR2520DS | |
| Description | ADAPTIVE BALLAST CONTROL IC | |
| Manufacturers | International Rectifier | |
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There is a preview and IR2520DS download ( pdf file ) link at the bottom of this page. Total ( 17 pages ) | ||
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Data Sheet No. PD60212 revC
IR2520D(S) & (PbF)
ADAPTIVE BALLAST CONTROL IC
Features
• 600V Half Bridge Driver
www.DataSheet4U.com • Integrated Bootstrap FET
• Adaptive zero-voltage switching (ZVS)
• Internal Crest Factor Over-Current Protection
• 0 to 6VDC Voltage Controlled Oscillator
• Programmable minimum frequency
• Micropower Startup Current (80uA)
• Internal 15.6V zener clamp on Vcc
• Small DIP8/SO8 Package
• Also available LEAD-FREE (PbF)
Packages
8-Lead PDIP
IR2520D
8 Lead SOIC
IR2520DS
Description
The IR2520D(S) is a complete adaptive ballast controller and 600V half-bridge driver integrated into a single
IC for fluorescent lighting applications. The IC includes adaptive zero-voltage switching (ZVS), internal crest
factor over-current protection, as well as an integrated bootstrap FET. The heart of this IC is a voltage con-
trolled oscillator with externally programmable minimum frequency. All of the necessary ballast features are
integrated in a small 8-pin DIP or SOIC package.
Typical Application Diagram
BR1
F1 LF
L1
CF
L2
RSUPPLY
CBUS
CVCC
VCC
1
COM
2
FMIN
3
RFMIN VCO
4
CVCO
DCP2
VB
8
HO
7
VS
6
LO
5
MHS
CBS
MLS
SPIRAL
CFL
LRES
CSNUB
CDC
CRES
DCP1
www.irf.com
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IR2520D(S) & (PbF)
Block Diagram
www.DataSheet4U.com
VCC 1
15.6V
COM 2
IFMIN
IFMAX
IVCO
IQS
5V
VCO 4
5.1V
0.8V
4.8V
1V
IDT
CT
SQ
RQ
Fault
Logic
VCC
UVLO
S1 Q
S2
R1
R2 Q
TQ
RQ
Level SET
Driver
Logic
HIN
Shift
PGEN
RST
LIN
300ns
PGEN
1us
blank
FMIN
5V
IFMIN=
5V
RRFMIN
3
All values are typical
Bootstrap
FET
Bootstrap
FET
Control
UVLO
SQ
R1
R2
High-Voltage Well
Level-Shift
FETs
8 VB
7 HO
6 VS
VS-Sensing
FET
VCC
5 LO
Averaging
Circuit
x5
120uA
www.irf.com
5
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| Information | Total 17 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ IR2520DS.PDF Datasheet ] | |
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| IR2520DS | The function is ADAPTIVE BALLAST CONTROL IC. | International Rectifier |
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