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TDA4866 데이터 시트보기 (PDF) - Philips Electronics

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TDA4866 Datasheet PDF : 20 Pages
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Philips Semiconductors
Full bridge current driven vertical deflection
booster
Product specification
TDA4866
FEATURES
Fully integrated, few external components
No additional components in combination with the
deflection controller TDA485x, TDA4841PS
Pre-amplifier with differential high CMRR current mode
inputs
Low offsets
High linear sawtooth signal amplification
High efficient DC-coupled vertical output bridge circuit
Powerless vertical shift
High deflection frequency up to 160 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.
GENERAL DESCRIPTION
The TDA4866 is a power amplifier for use in 90 degree
colour vertical deflection systems for frame frequencies of
50 to 160 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 TDA485x, TDA4841PS the
ICs offer an extremely advanced system solution.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS MIN. TYP. MAX. UNIT
DC supply; note 1
VP
supply voltage (pin 3)
VFB
flyback supply voltage (pin 7)
Iq
quiescent current (pin 7)
Vertical circuit
note 2
8.2
7
25
V
60
V
10
mA
Idefl
deflection current (peak-to-peak value; pins 4 and 6)
Iid
differential input current (peak-to-peak value)
note 3
Flyback generator
0.6
2
A
±500 ±600 µA
IFB
maximum current during flyback
(peak-to-peak value; pin 7)
2
A
Guard circuit; note 1
V8
guard voltage
I8
guard current
guard on
guard on
7.5 8.5 10
V
5
mA
Notes
1. Voltages refer to pin 5 (GND).
2. Up to 60 V VFB 40 V a decoupling capacitor CFB = 22 µF (between pin 7 and pin 5) and a resistor RFB = 100
(between pin 7 and VFB) are required (see Fig.7).
3. Differential input current Iid = I1 I2.
2001 Aug 07
2

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