IR21592SPBF Ver la hoja de datos (PDF) - International Rectifier

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IR21592SPBF

DIMMING BALLAST CONTROL IC

International Rectifier 

Data Sheet No. PD60194 revD

IR21592(S) & (PbF)

IR21593(S) & (PbF)

Features

DIMMING BALLAST CONTROL IC

• Ballast control and half-bridge driver in one IC

• Transformer-less lamp power sensing

• Closed-loop lamp power control

• Closed-loop preheat current control

• Programmable preheat time

• Programmable preheat current

• Lamp ignition detection

• Programmable ignition-to-dim time

• 0.5 to 5VDC dimming control input

• Min and max lamp power adjustments

• Programmable minimum frequency

• Internal current sense blanking

• Full lamp fault protection

• Brown-out protection

• Automatic restart

• Micro-power startup

• Zener clamped Vcc

• Over-temperature protection

• 16-pin DIP and SOIC package types

Parameter

Deadtime

Frequency

IR21592

1.8us

See

IR21593

1.0us

See

Description

Range

Graph 11 Graph 12

Description: The IR21592/IR21593 are complete dimming ballast controllers and 600V Packages

half-bridge drivers all in one IC. The architecture includes phase control for trans-

former-less lamp power sensing and regulation which minimizes changes needed to

adapt non-dimming ballasts for dimming. Externally programmable features such as

preheat time and current, ignition-to-dim time, and a complete dimming interface with

minimum and maximum settings provide a high degree of flexibility for the ballast

design engineer. Protection from failure of a lamp to strike, filament failures, thermal

16 Lead SOIC

(narrow body)

overload, or lamp failure during normal operation, as well as an automatic restart

function, have been included in the design. The heart of this control IC is a voltage-

controlled oscillator with externally programmable minimum frequency. The IR21592/

IR21593 are available in both 16 pin DIP and 16 pin narrow body SOIC packages.

Typical Connection

16 Lead PDIP

+ Rectified AC Line

+ DC Bus

0.5 to 5VDC

RVDC

CVDC

CVCO

CPH

RDIM

RMAX

RMIN

RFMIN

RIPH

RVAC

1 VDC

2

VCO

3 CPH

4

DIM

5 MAX

6 MIN

7

FMIN

8 IPH

HO 16

15

VS

VB 14

13

VCC

COM 12

LO 11

10

CS

SD 9

RPULL-UP

RCS

Single Lamp Dimmable

- DC Bus

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