TDA4861 Datasheet, PDF (8/12 Pages) NXP Semiconductors – Vertical deflection power amplifier for monitors

Philips Semiconductors
Vertical deflection power amplifier for
monitors
APPLICATION INFORMATION
Product specification
TDA4861
handbook, full pagewidth
TDA4861
VP3
8
BAX13
5
2.2 Ω
2N5819
vertical
output
signal
VP
3.3 kΩ
22 µF
>1 kΩ
GUARD output
HIGH = error
BC548
220 kΩ
MEH362
Fig.4 GUARD circuit application on vertical output.
handbook, full pagewidth
VOLTAGE
STABILIZER
VERTICAL
DRIVER
TDA4861
THERMAL AND
SOAR
PROTECTION
FLYBACK
DRIVER
DIFFERENTIAL
INPUT
AMPLIFIER
VERTICAL
OUTPUT
FLYBACK
GENERATOR
PULSE
CIRCUIT
1
2
VP1
+9 V
470
µF _{150 kΩ}
from TDA4850
1 MΩ
V-shift
3
BAX13
4
5
VP2 V-OUT
6
7
SUB
FLB
C2 100 µF
270 Ω
1.8 kΩ
1.8 kΩ
R1
1Ω
5.6 Ω
R2 240 Ω
0.1 µF
5.25 mH
yoke
470 µF
VN
−7.8 V
8
9
VP3
PCO
10 kΩ RPCO
MEH359
1997 Jan 20
Fig.5 Application for flyback voltage generation by doubling the supply voltage.
8