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TDA4867J Datasheet(PDF) 7 Page - NXP Semiconductors

Part No. TDA4867J
Description  Full bridge current driven vertical deflection booster
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 7 page
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2003 Feb 05
7
Philips Semiconductors
Preliminary specification
Full bridge current driven vertical
deflection booster
TDA4867J
Notes
1. 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 Ω (between pin VFB and flyback supply voltage) are required (see Fig.6).
2. Differential input current Ii(dif) =IINP − IINN.
3. Input resistance is 500
Ω.
4. Required VP depends on the impedance of the deflection yoke.
5. Deviation of the output slope at a constant input slope.
Flyback generator
IFB(p-p)
maximum current during flyback on
pin VFB (peak-to-peak value)
−−
2.5
A
VFB-OUTA
voltage drop during flyback between
pin VFB and pin OUTA
reverse
Idefl = −0.7 A
−−2.6
−3V
Idefl = −1.25 A
−−3.1
−3.9
V
forward
Idefl = 0.7 A
5.2
6.1
V
Idefl = 1.25 A
5.7
6.9
V
Vth(OUTA)
switch-on threshold voltage on
pin OUTA
VP − 1
VP +1
V
Guard circuit (pin GUARD)
VGUARD
output voltage
guard on;
IGUARD = −5mA
56
V
guard off; IGUARD =0
−−
0.4
V
IGUARD
output current
guard on;
VGUARD >5V
−5
−−
mA
Vext
external voltage
for guard function
0
6.5
V
for power save mode;
IGUARD = 0.5 mA
8.2
9.5
V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT




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