UBA2021 데이터 시트보기 (PDF) - NXP Semiconductors.

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UBA2021

630 V driver IC for CFL and TL lamps

NXP Semiconductors. 

UBA2021

630 V driver IC for CFL and TL lamps

Rev. 04 — 25 July 2008

Product data sheet

1. General description

The UBA2021 is a high voltage IC intended to drive and control Compact Fluorescent

Lamps (CFL) or fluorescent TL lamps. It contains a driver circuit for an external

half-bridge, an oscillator and a control circuit for starting up, preheating, ignition, lamp

burning and protection.

2. Features

I Adjustable preheat and ignition time.

I Adjustable preheat current.

I Adjustable lamp power.

I Lamp power independent from mains voltage variations.

I Overpower protection.

I Lamp temperature stress protection at higher mains voltages.

I Capacitive mode protection.

I Protection against a drive voltage that is too low for the power MOSFETs.

3. Quick reference data

Table 1. Quick reference data

Symbol

Parameter

High voltage supply

VFS

high side supply voltage

Start-up state

VVS(start)

oscillator start voltage

VVS(stop)

oscillator stop voltage

IVS(standby) standby current

Preheat mode

fstart

start frequency

tph

preheat time

VRS(ctrl)

control voltage at pin RS

Frequency sweep to ignition

fB

bottom frequency

tign

ignition time

Normal operation

fB

bottom frequency

tno

non-overlap time

Conditions

IFS < 15 µA; t < 0.5 s

VVS = 11 V

CCP = 100 nF

Min Typ Max Unit

-

-

630 V

-

11.95 -

V

-

10.15 -

V

-

200

-

µA

-

108

-

kHz

-

666

-

ms

-

−600 -

mV

-

42.9 -

kHz

-

625

-

ms

-

42.9 -

kHz

-

1.4

-

µs

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