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International Rectifier Electronic Components Datasheet

IR2520DPBF Datasheet

ADAPTIVE BALLAST CONTROL IC

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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
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1


International Rectifier Electronic Components Datasheet

IR2520DPBF Datasheet

ADAPTIVE BALLAST CONTROL IC

No Preview Available !

IR2520D(S)& (PbF)
Absolute Maximum Ratings
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage param-
eters are absolute voltages referenced to COM, all currents are defined positive into any lead. The thermal resistance
and power dissipation ratings are measured under board mounted and still air conditions.
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Symbol
VB
VS
VHO
VLO
IVCO
ICC
dVS/dt
PD
RthJA
TJ
TS
TL
Definition
High side floating supply voltage
High side floating supply offset voltage
High side floating output voltage
Low side output voltage
Voltage controlled oscillator input current (Note 1)
Supply current (Note 2)
Allowable offset voltage slew rate
Package power dissipation @ TA +25°C
PD=(TJMAX-TA)RthJA
8-Lead PDIP
8-Lead SOIC
Thermal resistance, junction to ambient
8-Lead PDIP
8-Lead SOIC
Junction temperature
Storage temperature
Lead temperature (soldering, 10 seconds)
Min.
-0.3
VB - 25
VS - 0.3
-0.3
-5
-25
-50
-55
-55
Max.
625
VB + 0.3
VB + 0.3
VCC + 0.3
+5
25
50
1
0.625
125
200
150
150
300
Units
V
mA
mA
V/ns
W
°C/W
°C
Note 1: This IC contains a zener clamp structure between the chip VCO and COM, which has a nominal breakdown voltage
of 6V. Please note that this pin should not be driven by a DC, low impedance power source greater than 6V.
Note 2: This IC contains a zener clamp structure between the chip VCC and COM, which has a nominal breakdown voltage
of 15.6V. Please note that this supply pin should not be driven by a DC, low impedance power source greater than the
VCLAMP specified in the Electrical Characteristics section.
Recommended Operating Conditions
For proper operation the device should be used within the recommended conditions.
Symbol
Definition
Min.
Max. Units
VBS
VS
VCC
ICC
RFMIN
VVCO
TJ
High side floating supply voltage
Steady state high side floating supply offset voltage
Supply voltage
Supply current
Minimum frequency setting resistance
VCO pin voltage
Junction temperature
VCC - 0.7
-1
VCCUV+
Note 3
20
0
-25
VCLAMP
600
VCLAMP
10
140
5
125
V
mA
k
V
°C
Note 3: Enough current should be supplied into the VCC pin to keep the internal 15.6V zener clamp diode on this pin
regulating its voltage, VCLAMP.
2 www.irf.com


Part Number IR2520DPBF
Description ADAPTIVE BALLAST CONTROL IC
Maker International Rectifier
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IR2520DPBF Datasheet PDF






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