IR2520DSTRPBF Datasheet, PDF (1/17 Pages) International Rectifier – ADAPTIVE BALLAST CONTROL IC

Data Sheet No. PD60212 revC
IR2520D(S) & (PbF)
ADAPTIVE BALLAST CONTROL IC
Features
• 600V Half Bridge Driver
• 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
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