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International Rectifier Electronic Components Datasheet

IR2520 Datasheet

ADAPTIVE BALLAST CONTROL IC

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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
1


International Rectifier Electronic Components Datasheet

IR2520 Datasheet

ADAPTIVE BALLAST CONTROL IC

No Preview Available !

IR2520D(S)
ADVANCE DATA
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.
Symbol
Definition
Min. Max. Units
VB
VS
VHO
VLO
IOMAX
IVCO
ICC
dVS/dt
PD
High side floating supply voltage
High side floating supply offset voltage
High side floating output voltage
Low side output voltage
Maximum allowable output current (HO,LO) due to external
power transistor miller effect
Voltage controlled oscillator input current (Note 1)
Supply current (Note 2)
Allowable offset voltage slew rate
Package power dissipation @ TA +25°C 8-Lead PDIP
PD=(TJMAX-TA)RthJA
8-Lead SOIC
-0.3
VB - 25
VS - 0.3
-0.3
-500
-5
-20
-50
625
VB + 0.3
VB + 0.3
VCC + 0.3
500
+5
20
50
1
0.625
V
mA
mA
mA
V/ns
W
RthJA
Thermal resistance, junction to ambient
8-Lead PDIP
8-Lead SOIC
125
°C/W
200
TJ Junction temperature
TS Storage temperature
TL Lead temperature (soldering, 10 seconds)
-55 150
-55 150 °C
— 300
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
10
0
-25
VCLAMP
600
VCLAMP
10
100
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 IR2520
Description ADAPTIVE BALLAST CONTROL IC
Maker International Rectifier
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IR2520 Datasheet PDF






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