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參數(shù)資料
| 型號： | TDA4867 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Full bridge current driven vertical deflection booster |
| 中文描述： | 全橋電流驅(qū)動垂直偏轉助推器 |
| 文件頁數(shù)： | 2/14頁 |
| 文件大?。?/td> | 426K |
| 代理商： | TDA4867 |
2003 Feb 05
2
Philips Semiconductors
Preliminary specification
Full bridge current driven vertical
deflection booster
TDA4867J
FEATURES
Fully integrated, few external components
Maximum 2.5 A (p-p) deflection current
No additional components in combination with the
deflection controller family TDA485x and SAA4856
Pre-amplifier with differential high CMRR current mode
inputs
Low offsets
High linear sawtooth signal amplification
High efficient DC-coupled vertical output bridge circuit
High deflection frequency up to 200 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
Power save mode controlled by input pins
(in combination with SAA4856 only) or guard pin.
GENERAL DESCRIPTION
The TDA4867J is a power booster for use in colour vertical
deflection systems for frame frequencies of 50 to 200 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 the deflection controller
family TDA485x and SAA4856 the ICs offer an extremely
advanced system solution.
QUICK REFERENCE DATA
Notes
1.
2.
Voltages refer to pin GND.
If V
FB
is between 40 and 60 V a decoupling capacitor C
FB
= 22
μ
F (between pin V
FB
and pin GND) and a resistor
R
FB
= 100
(between pin V
FB
and flyback supply voltage) are required (see Fig.6).
Differential input current I
i(dif)
= I
INP
I
INN
.
3.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
DC supplies;
note 1
V
P
V
FB
I
q(VFB)
Vertical circuit
supply voltage
flyback supply voltage
quiescent flyback current
8.2
V
P
+ 6
2.5
25
60
4
V
V
mA
note 2
no load; no signal
I
defl(p-p)
deflection current on pins OUTB
and OUTA (peak-to-peak value)
differential input current
0.6
2.5
A
I
i(dif)
Flyback generator
note 3
±
500
±
600
μ
A
I
FB(p-p)
maximum current during flyback on
pin V
FB
(peak-to-peak value)
Guard circuit;
note 1
2.5
A
V
GUARD
guard voltage
guard on
5.5
6.2
V
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TDA4867J | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full bridge current driven vertical deflection booster |
| TDA4881 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Advanced monitor video controller |
| TDA4881N | 制造商:NXP Semiconductors 功能描述: |
| TDA4882 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Advanced monitor video controller for OSD |
| TDA4883 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Non-VGA Video Controller |
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