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參數(shù)資料
| 型號： | TDA8351 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 偏轉(zhuǎn) |
| 英文描述： | DC-coupled vertical deflection circuit |
| 中文描述： | VERTICAL DEFLECTION IC, PSIP9 |
| 封裝： | POWER, PLASTIC, SOT-131-2, SIP-9 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 81K |
| 代理商： | TDA8351 |
1999 Sep 27
4
Philips Semiconductors
Product specification
DC-coupled vertical deflection circuit
TDA8351
PINNING
FUNCTIONAL DESCRIPTION
The vertical driver circuit is a bridge configuration. The
deflectioncoilisconnectedbetweentheoutputamplifiers,
which are driven in opposite phase. An external resistor
(R
M
) connected in series with the deflection coil provides
internal feedback information. The differential input circuit
is voltage driven. The input circuit has been adapted to
enable it to be used with the TDA9150, TDA9151B,
TDA9160A, TDA9162, TDA8366 and TDA8376 which
deliver symmetrical current signals. An external resistor
(R
CON
) connected between the differential input
determines the output current through the deflection coil.
Therelationshipbetweenthedifferentialinputcurrentand
the output current is defined by: I
diff
×
R
CON
= I
coil
×
R
M
.
The output current is adjustable from 0.5 A (p-p) to 3 A
(p-p) by varying R
M
. The maximum input differential
voltage is 1.8 V. In the application it is recommended that
V
diff
= 1.5 V (typ). This is recommended because of the
spread of input current and the spread in the value of
R
CON
.
The flyback voltage is determined by an additional supply
voltage V
FB
. The principle of operating with two supply
voltages (class G) makes it possible to fix the supply
voltage V
P
optimum for the scan voltage and the second
supply voltage V
FB
optimum for the flyback voltage. Using
this method, very high efficiency is achieved.
The supply voltage V
FB
is almost totally available as
flyback voltage across the coil, this being possible due to
the absence of a decoupling capacitor (not necessary,
due to the bridge configuration). Built-in protections are:
thermal protection
short-circuit protection of the output pins (pins 4 and 7)
short-circuit protection of the output pins to V
P
.
A guard circuit V
O(guard)
is provided. The guard circuit is
activated at the following conditions:
during flyback
during short-circuit of the coil and during short-circuit of
the output pins (pins 4 and 7) to V
P
or ground
during open loop
when the thermal protection is activated.
This signal can be used for blanking the picture tube
screen.
SYMBOL
PIN
DESCRIPTION
I
drive(pos)
1
input power-stage (positive);
includes I
I(sb)
signal bias
input power-stage (negative);
includes I
I(sb)
signal bias
operating supply voltage
output voltage B
ground
input flyback supply voltage
output voltage A
guard output voltage
input feedback voltage
I
drive(neg)
2
V
P
V
O(B)
GND
V
FB
V
O(A)
V
O(guard)
V
I(fb)
3
4
5
6
7
8
9
Fig.2 Pin configuration.
Metal block connected to substrate pin 5.
Metal on back.
handbook, 2 columns
2
3
4
5
6
7
8
9
TDA8351
VI(fb)
VP
VO(B)
GND
VFB
VO(A)
VO(guard)
Idrive(neg)
MBC989
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA8351/N6,112 | 功能描述:IC DC COUPLED V-DEFL 9-SIL RoHS:是 類別:集成電路 (IC) >> 專用 IC 系列:* 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA（27x27） 包裝:散裝 |
| TDA8351A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DC-coupled vertical deflection output circuit |
| TDA8351AQ | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DC-coupled vertical deflection output circuit |
| TDA8354 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full bridge current driven vertical deflection output circuit in LVDMOS |
| TDA8354Q | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full bridge current driven vertical deflection output circuit in LVDMOS |
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