TDA4853 datasheet(40/60 Pages) PHILIPS

Part #	TDA4853

Description	I2C-bus autosync deflection controllers for PC/TV monitors

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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40 / 60 page

1999 Jul 13

40

Philips Semiconductors

Product speciﬁcation

I2C-bus autosync deﬂection controllers for

PC/TV monitors

TDA4853; TDA4854

APPLICATION INFORMATION

Fig.23 Application and timing for feedback mode.

For f < 50 kHz and C2 < 47 nF calculation formulas and behaviour of the OTA are the same as for an OP. An exception is the limited output current at

BOP (pin 3). See Chapter “Characteristics”, Row Head “B+ control section; see Figs 23 and 24”.

(1) The recommended value for R6 is 1 k

Ω.

a. Feedback mode application.

b. Waveforms for normal operation.

c. Waveforms for fault condition.

handbook, full pagewidth

VHDRV

VBSENS

VBSENS = VBOP

VBDRV

toff(min)

ton

horizontal

flyback pulse

VRESTART(BSENS)

VSTOP(BSENS)

2

3

4

1

MBG600

td(BDRV)

handbook, full pagewidth

SOFT START

S

R

Q

HORIZONTAL

OUTPUT

STAGE

VHDRV

VCC

Vi

6

D2

TR1

R5

C4

R4

R6(1)

L

OTA

2.5 V

VHPLL2

5

VBIN

VBOP

VBSENS

VBDRV

CBOP

D1

R1

R3

EWDRV

C1

R2

C2

34

>10 nF

horizontal

flyback pulse

INVERTING

BUFFER

3

2

4

1

MGM080

DISCHARGE

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TDA4853 Datasheet(PDF) 40 Page - NXP Semiconductors

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