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TDA4866 Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. TDA4866
Description  Full bridge current driven vertical deflection booster
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 2 page
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1999 Jun 14
2
Philips Semiconductors
Product specification
Full bridge current driven vertical deflection
booster
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
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 Ω
(between pin 7 and VFB) are required (see Fig.4).
3. Differential input current Iid =I1 − I2.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
DC supply; note 1
VP
supply voltage (pin 3)
8.2
25
V
VFB
flyback supply voltage (pin 7)
note 2
−−
60
V
Iq
quiescent current (pin 7)
710
mA
Vertical circuit
Idefl
deflection current
(peak-to-peak value; pins 4 and 6)
0.6
2A
Iid
differential input current (peak-to-peak value)
note 3
−±500
±600
µA
Flyback generator
IFB
maximum current during flyback
(peak-to-peak value; pin 7)
−−
2A
Guard circuit; note 1
V8
guard voltage
guard on
7.5
8.5
10
V
I8
guard current
guard on
5
−−
mA




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