Anterwell Technology Ltd. |
|
TDA4863J; TDA4863AJ
Vertical deflection booster
FEATURES
• Power amplifier with differential inputs
• Output current up to 3 A (p-p)
• High vertical deflection frequency up to 200 Hz
• High linear sawtooth signal amplification
• Flyback generator:
– TDA4863J: separate adjustable flyback supply voltage up to 60 V
– TDA4863AJ: internally doubled supply voltage (two supply voltages only for DC-coupled outputs).
GENERAL DESCRIPTION
The TDA4863J and TDA4863AJ are deflection boosters for use in vertical deflection systems for frame frequencies up to 200 Hz.
The TDA4863J needs a separate flyback supply voltage, so the supply voltages are independently adjustable to optimize power consumption and flyback time.
For the TDA4863AJ the flyback supply voltage will be generated internally by doubling the supply voltage and therefore a separate flyback supply voltage is not needed.
Both circuits provide differential input stages and fit well with the TDA485X monitor deflection controller family.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134); voltages referenced to ground (pin 4); unless otherwise specified.
SYMBOL | PARAMETER | CONDITIONS | MIN. | MAX. | UNIT |
---|---|---|---|---|---|
VP1 | supply voltage 1 (pin 1) | − | 40 | V | |
VP2 | supply voltage 2 (pin 3) | − | 60 | V | |
VFB | flyback supply voltage of TDA4863J (pin 2) | − | 60 | V | |
VP3 | flyback generator output voltage of TDA4863AJ (pin 2) | 0 | VP1 +3 | V | |
Vi(6,7) | input voltage on pins 6 and 7 | − | VP1 | V | |
Vo(5) | output voltage on pin 5 | − | 62 | V | |
IP2 | supply current 2 (pin 3) | − | ±1.8 | A | |
Io(5) | output current (pin 5) | note 1 | − | ±1.8 | A |
I2 | flyback current on pin 2 | − | ±1.8 | A | |
Tstg | storage temperature | −25 | +150 | °C | |
Tamb | ambient temperature | −20 | +75 | °C | |
Tj | junction temperature | note 1 | − | 150 | °C |
Ves | electrostatic discharge voltage on all pins | note 2 | −300 | +300 | V |
Notes
1. Internally limited by thermal protection; will be activated for Tj ≥ 150 °C.
2. Equivalent to discharging a 200 pF capacitor through a 0 Ω series resistor.
BLOCK DIAGRAM
Fig.1 Block diagram of TDA4863J
Fig.2 Block diagram of TDA4863AJ.
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