- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄365778 > TDA8357J (NXP SEMICONDUCTORS) Full bridge current driven vertical deflection output circuit in LVDMOS(LVDMOS中的整橋電流驅(qū)動(dòng)的垂直偏轉(zhuǎn)輸出電路) PDF資料下載
參數(shù)資料
| 型號(hào)： | TDA8357J |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 偏轉(zhuǎn) |
| 英文描述： | Full bridge current driven vertical deflection output circuit in LVDMOS(LVDMOS中的整橋電流驅(qū)動(dòng)的垂直偏轉(zhuǎn)輸出電路) |
| 中文描述： | VERTICAL DEFLECTION IC, PZIP9 |
| 封裝： | POWER, PLASTIC, SOT-523-1, DIL-BENT-SIL, 9 PIN |
| 文件頁數(shù)： | 10/16頁 |
| 文件大小： | 96K |
| 代理商： | TDA8357J |
1999 Nov 10
10
Philips Semiconductors
Preliminary specification
Full bridge vertical deflection output circuit
in LVDMOS
TDA8357J
Supply voltage calculation
For calculating the minimum required supply voltage,
several specific application parameter values have to be
known. These parameters are the required
maximum (peak) deflection coil current I
coil(peak)
, the coil
parameters R
coil
and L
coil
, and the measuring resistance
of R
M
. The required maximum (peak) deflection coil
current should also include the overscan.
The deflection coil resistance has to be multiplied with 1.2
in order to take account of hot conditions.
Chapter “Characteristics” supplies values for the voltage
losses of the vertical output stage. For the first part of the
scan the voltage loss is given by V
loss(1)
. For the second
part of the scan the voltage loss is given by V
loss(2)
.
The voltage drop across the deflection coil during scan is
determined by the coil impedance. For the first part of the
scan the inductive contribution and the ohmic contribution
to the total coil voltage drop are of opposite sign, while for
the second part of the scan the inductive part and the
ohmic part have the same sign.
For the vertical frequency the maximum frequency
occurring must be applied to the calculations.
The required power supply voltage V
P
for the first part of
the scan is given by:
The required power supply voltage V
P
for the second part
of the scan is given by:
The minimum required supply voltage V
P
shall be the
highest of the two values V
P(1)
and V
P(2)
. Spread in supply
voltage and component values also has to be taken into
account.
Flyback supply voltage calculation
If the flyback time is known, the required flyback supply
voltage can be calculated by the simplified formula:
where:
The flyback supply voltage calculated this way is about
5% to 10% higher than required.
Calculation of the power dissipation of the vertical
output stage
The IC total power dissipation is given by the formula:
P
tot
= P
sup
P
L
The power to be supplied is given by the formula:
In this formula 0.3 [W] represents the average value of the
losses in the flyback supply.
The average external load power dissipation in the
deflection coil and the measuring resistor is given by the
formula:
Example
Table 1
Application values
Table 2
Calculated values
V
P 1
–
( )
L
coil
I
coil peak
2I
coil peak
)
R
coil
f
vert max
×
R
M
+
(
)
+
)
)
V
loss 1
( )
×
×
=
V
P 2
+
( )
L
coil
I
coil peak
2I
coil peak
×
)
R
coil
f
vert max
×
R
M
+
(
)
×
=
)
)
V
loss 2
( )
+
V
FB
I
coil p p
–
)
R
--------------------------
R
M
+
x
1
e
–
×
=
x
L
coil
R
M
+
R
=
SYMBOL
I
coil(peak)
I
coil(p-p)
L
coil
R
coil
R
M
f
vert
t
FB
VALUE
UNIT
0.725
1.45
8.82
7.9
1.5
50
640
A
A
mH
Hz
μ
s
SYMBOL
VALUE
UNIT
V
P
R
M
+ R
coil
(hot)
t
vert
x
V
FB
P
sup
P
L
P
tot
11
11
0.02
0.000802
29
4.45
1.93
2.52
V
s
V
W
W
W
P
sup
V
P
I
2
)
-----------------------
V
P
0.015 [A]
0.3 [W]
+
×
+
×
=
P
L
I
-------------------------------
(
)
2
3
R
coil
R
M
+
(
)
×
=
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA8358 | Full bridge vertical deflection output circuit in LVDMOS with east-west amplifier |
| TDA8358J | Full bridge vertical deflection output circuit in LVDMOS with east-west amplifier(帶水平放大器的LVDMOS中的整橋電流驅(qū)動(dòng)的垂直偏轉(zhuǎn)輸出電路) |
| TDA8359J | Full bridge vertical deflection output circuit in LVDMOS |
| TDA8366H | I2C-bus controlled PAL/NTSC TV processor |
| TDA8366 | IIC-bus controlled PAL/NTSC TVprocessor(IIC總線控制的PAL/NTSC TV處理器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA8358 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full bridge vertical deflection output circuit in LVDMOS with east-west amplifier |
| TDA8358J | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full bridge vertical deflection output circuit in LVDMOS with east-west amplifier |
| TDA8359J | 制造商:Distributed By MCM 功能描述:Lvdmos Philips IC 9-Pin Zip |
| TDA8359J/N2,112 | 功能描述:視頻 IC FULL BDG VERT DEFL RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TDA8359JU | 功能描述:視頻 IC FULL BDG VERT DEFL O/P CIRC RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。