IR2159 查看數據表（PDF） - International Rectifier

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IR2159

DIMMING BALLAST CONTROL IC

International Rectifier 

Preliminary Data Sheet No. PD60169-D

IR2159(S)

IR21591(S)

DIMMING BALLAST CONTROL IC

Features

• 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

• Brown-out protection

• Automatic restart

• Micro-power startup

• Zener clamped Vcc

• Over-temperature protection

• 16-pin DIP and SOIC package types

• Programmable ignition-to-dim time

• 0.5 to 5VDC dimming control input

Parameter

IR2159 IR21591

• Min and max lamp power adjustments

• Programmable minimum frequency

• Internal current sense blanking

• Full lamp fault protection

Deadtime

Frequency

Range

1.8us

See

Graph 3

1.0us

See

Graph 4

Description

Packages

Description: The IR2159/IR21591 are complete dimming ballast controllers and 600V

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

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 IR2159/

IR21591 are available in both 16 pin DIP and 16 pin narrow body SOIC packages.

16 Lead SOIC

(narrow body)

16 Lead PDIP

Typical Connection

+ 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

RPULL-UP

16

HO

15

VS

14

VB

13

VCC

12

COM

11

LO

10

CS

9

SD

RCS

Single Lamp Dimmable

- DC Bus

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