TDA4867J Philips Semiconductors, TDA4867J Datasheet - Page 2

• Manufacturer Part Number: TDA4867J
• Description: Full bridge current driven vertical deflection booster
• Manufacturer: Philips Semiconductors

Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
Notes
1. Voltages refer to pin GND.
2. If V
3. Differential input current I
2003 Feb 05
DC supplies; note 1
V
V
I
Vertical circuit
I
I
Flyback generator
I
Guard circuit; note 1
V
q(VFB)
defl(p-p)
i(dif)
FB(p-p)
SYMBOL
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.
P
FB
GUARD
Full bridge current driven vertical
deflection booster
R
FB
FB
= 100
is between 40 and 60 V a decoupling capacitor C
supply voltage
flyback supply voltage
quiescent flyback current
deflection current on pins OUTB
and OUTA (peak-to-peak value)
differential input current
maximum current during flyback on
pin V
guard voltage
(between pin V
FB
(peak-to-peak value)
PARAMETER
i(dif)
FB
= I
and flyback supply voltage) are required (see Fig.6).
INP
I
INN
.
note 2
no load; no signal
note 3
guard on
2
FB
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.
CONDITIONS
= 22 F (between pin V
8.2
V
0.6
5.5
P
MIN.
+ 6
FB
and pin GND) and a resistor
2.5
6.2
500
Preliminary specification
TYP.
TDA4867J
25
60
4
2.5
2.5
MAX.
600
V
V
mA
A
A
V
A
UNIT