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IR2520 Datasheet PDF - International Rectifier

Part Number IR2520
Description ADAPTIVE BALLAST CONTROL IC
Manufacturers International Rectifier 
Logo International Rectifier Logo 

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ADVANCE DATA
Data Sheet No. PD60212 Rev A
IR2520D(S)
ADAPTIVE BALLAST CONTROL IC
Features
600V Half Bridge Driver
Integrated Bootstrap Diode
Adaptive zero-voltage switching (ZVS)
Internal Crest Factor Over-Current Protection
0 to 5VDC Voltage Controlled Oscillator
Programmable minimum frequency
Micropower Startup Current (150uA)
Internal 15.6V zener clamp on Vcc
Small DIP8/SO8 Package
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 diode. The heart of this IC is a voltage
controlled 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
BR
F1
L1
RSUPPLY
VCC
1
C1 CVCC COM
2
RFMIN FMIN
3
VCO
4
CVCO
DCP1
C2
CFL LAMP
VB M1
8
HO
7
CBOOT
VS
6
LO M2
5
LRES
CCP
CRES
DCP2
C3
Please note that this data sheet contains advance information which could change before product is released to production.
www.irf.com
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IR2520 equivalent
ADVANCE DATA
IR2520D(S)
Lead Definitions
Symbol
VCC
COM
FMIN
VCO
LO
VS
HO
VB
Description
Supply voltage
IC power and signal ground
Minimum frequency setting
Voltage controlled oscillator input
Low-side gate driver output
High-side floating return
High-side gate driver output
High-side gate driver floating supply
Lead Assignments
VCC 1
COM 2
FMIN 3
VCO 4
8 VB
7 HO
6 VS
5 LO
www.irf.com
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IR2520 datasheet pdf


1. BALLAST CONTROL IC - IR

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