TDA8351 查看數據表（PDF） - Philips Electronics

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TDA8351

DC-coupled vertical deflection circuit

Philips Electronics 

Philips Semiconductors

DC-coupled vertical deflection circuit

Product specification

TDA8351

FEATURES

• Few external components

• Highly efficient fully DC-coupled vertical output bridge

circuit

• Vertical flyback switch

• Guard circuit

• Protection against:

– short-circuit of the output pins (7 and 4)

– short-circuit of the output pins to VP

• Temperature protection

• High EMC immunity because of common mode inputs

• A guard signal in zoom mode.

GENERAL DESCRIPTION

The TDA8351 is a power circuit for use in 90° and 110°

colour deflection systems for field frequencies of 50 to

120 Hz. The circuit provides a DC driven vertical

deflection output circuit, operating as a highly efficient

class G system.

QUICK REFERENCE DATA

SYMBOL

PARAMETER

CONDITIONS MIN.

TYP.

MAX.

UNIT

DC supply

VP

Iq

Vertical circuit

supply voltage

quiescent supply current

9

−

25

V

−

30

−

mA

IO(p-p)

Idiff(p-p)

Vdiff(p-p)

output current

(peak-to-peak value)

differential input current

(peak-to-peak value)

differential input voltage

(peak-to-peak value)

−

−

3

A

−

600

−

µA

−

1.5

1.8

V

Flyback switch

IM

peak output current

−

−

±1.5

A

VFB

flyback supply voltage

−

−

50

V

note 1

−

−

60

V

Thermal data (in accordance with IEC 747-1)

Tstg

Tamb

Tvj

storage temperature

operating ambient temperature

virtual junction temperature

−55

−

−25

−

−

−

+150

°C

+75

°C

150

°C

Note

1. A flyback supply voltage of >50 V up to 60 V is allowed in application. A 220 nF capacitor in series with a 22 Ω resistor

(depending on IO and the inductance of the coil) has to be connected between pin 7 and ground. The decoupling

capacitor of VFB has to be connected between pin 6 and pin 3. This supply voltage line must have a resistance of

33 Ω (see application circuit Fig.6).

1999 Sep 27

2

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