IR2520D 데이터 시트보기 (PDF) - International Rectifier

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IR2520D

ADAPTIVE BALLAST CONTROL IC

International Rectifier 

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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