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TDA4867J Datasheet

Full bridge current driven vertical deflection booster

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INTEGRATED CIRCUITS
DATA SHEET
TDA4867J
Full bridge current driven vertical
deflection booster
Product specification
Supersedes data of 2003 Feb 18
2004 Jul 22


NXP Semiconductors Electronic Components Datasheet

TDA4867J Datasheet

Full bridge current driven vertical deflection booster

No Preview Available !

Philips Semiconductors
Full bridge current driven vertical
deflection booster
Product specification
TDA4867J
FEATURES
Fully integrated, few external components
Maximum 2.5 A (p-p) deflection current
No additional components in combination with the
deflection controller family TDA485x and SAA4856
Pre-amplifier with differential high CMRR current mode
inputs
Low offsets
High linear sawtooth signal amplification
High efficient DC-coupled vertical output bridge circuit
High deflection frequency up to 200 Hz
Power supply and flyback supply voltage independent
adjustable to optimize power consumption and flyback
time
Excellent transition behaviour during flyback
Guard circuit for screen protection
Power save mode controlled by input pins
(in combination with SAA4856 only) or guard pin.
GENERAL DESCRIPTION
The TDA4867J is a power booster for use in colour vertical
deflection systems for frame frequencies of 50 to 200 Hz.
The circuit provides a high CMRR current driven
differential input. Due to the bridge configuration of the two
output stages DC-coupling of the deflection coil is
achieved. In conjunction with the deflection controller
family TDA485x and SAA4856 the ICs offer an extremely
advanced system solution.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
DC supplies; note 1
VP
VFB
Iq(VFB)
supply voltage
flyback supply voltage
quiescent flyback current
Vertical circuit
note 2
no load; no signal
8.2
VP + 6
2.5
25
60
4
V
V
mA
Idefl(p-p)
deflection current on pins OUTB
and OUTA (peak-to-peak value)
Ii(dif) differential input current
Flyback generator
note 3
0.6
2.5 A
− ±500 ±600 µA
IFB(p-p)
maximum current during flyback on
pin VFB (peak-to-peak value)
Guard circuit; note 1
− − 2.5 A
VGUARD
guard voltage
guard on
5.5 6.2
V
Notes
1. Voltages refer to pin GND.
2. If VFB is between 40 and 60 V a decoupling capacitor CFB = 22 µF (between pin VFB and pin GND) and a resistor
RFB = 100 (between pin VFB and flyback supply voltage) are required (see Fig.6).
3. Differential input current Ii(dif) = IINP IINN.
2004 Jul 22
2


Part Number TDA4867J
Description Full bridge current driven vertical deflection booster
Maker NXP
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