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
V
P1
supply voltage (pin 1) 9 − 30 V
V
P2
supply voltage (pin 4) 9 − 60 V
V
P3
flyback supply voltage (pin 8) 9 − 60 V
I
P1
supply current (pin 1) −−10 mA
I
P2
supply quiescent current (pin 4) − 9 − mA
V
I
input voltage (pins 2 and 3) 1.6 − V
P1
− 0.5 V
I
5(p-p)
deflection output current (peak-to-peak value; pin 5) −−2.8 A
T
amb
operating ambient temperature −20 − +75 °C
TYPE
NUMBER
PACKAGE
NAME DESCRIPTION VERSION
TDA4861 SIL9P plastic single in-line power package; 9 leads SOT131-2
