1997 Jan 20 2
Philips Semiconductors Product specification
Vertical deflection power amplifier for
monitors TDA4861
FEATURES
•Vertical pre-amplifier with differential inputs
•Powerless vertical shift
•Flyback voltage generation suitable for two operating
modes (doubling the supply voltage or external supply
for the short flyback time, this achieves a minimum of
power dissipation)
•Vertical output stage with thermal and SOAR protection
•High deflection frequency up to 140 Hz
•High linear sawtooth signal amplification
•Possibility of guarding the deflection
•Voltage stabilizer.
GENERAL DESCRIPTION
The TDA4861 is a vertical power amplifier for differential
input signals suitable for colour monitor/TV systems with
deflection frequencies up to 140 Hz.
QUICK REFERENCE DATA
Measurements referenced to substrate (pin 6).
ORDERING INFORMATION
SYMBOL PARAMETER MIN. TYP. MAX. UNIT
VP1 supply voltage (pin 1) 9 −30 V
VP2 supply voltage (pin 4) 9 −60 V
VP3 flyback supply voltage (pin 8) 9 −60 V
IP1 supply current (pin 1) −−10 mA
IP2 supply quiescent current (pin 4) −9−mA
VIinput voltage (pins 2 and 3) 1.6 −VP1 −0.5 V
I5(p-p) deflection output current (peak-to-peak value; pin 5) −−2.8 A
Tamb operating ambient temperature −20 −+75 °C
TYPE
NUMBER
PACKAGE
NAME DESCRIPTION VERSION
TDA4861 SIL9P plastic single in-line power package; 9leads SOT131-2