Datasheet TEA5101A Datasheet (SGS Thomson Microelectronics)

RGB HIGH VOLTAGE VIDEO AMPLIFIER

.

BANDWIDTH : 10MHzTYPICAL

.

RISE ANDFALL TIME : 50nsTYPICAL

.

CRT CATHODES CURRENT OUTPUTS FOR
PARALLEL OR SEQUENTIAL CUT-OFF OR
DRIVEADJUSTMENT

.

FLASHOVERPROTECTION

.

POWER DISSIPATION : 3.5W

.

ESD PROTECTED

TEA5101A

DESCRIPTION

The TEA5101A includes three video amplifiers
desi-gnedwitha high voltageDMOS/bipolar tech­nology. It drives directly the three CRT cathodes.
The deviceisprotectedagainstflashovers. Dueto
its three cathode current outputs, the TEA5101A
canbeused withboth paralleland sequentialsam­plingapplications.

PINCONNECTIONS (topview)

15
14
13
12
11
10

9
8
7
6
5
4
3
2
1

MULTIWATT 15

(Plastic Package)

ORDER CODE : TEA5101A

BLUE FEEDBACK
BLUE CATHODE CURRENT
BLUE OUTPUT
GREEN FEEDBACK
GREEN CATHODE CURRENT
GREEN OUTPUT
RED FEEDBACK
GROUND
RED OUTPUT
RED CATHODE CURRENT
V HIGH VOLTAGE

DD

RED INPUT
GREEN INPUT
V LOW VOLTAGE

CC

BLUE INPUT

June 1993

Tab connectedto Pin 8

5101A-01.EPS

1/6

TEA5101A

PIN FUNCTION

N° Function Description

1 Blue Input Input of the ”blue” amplifier. It is a virtual ground with 3.8V bias voltage,

2V

CC

3 Green Input See Pin 1.
4 Red Input See Pin 1.
5V

DD

6 Red Cathode Current Provides the video processor with a copy ofthe DC current flowing into the red

7 Red Output Output driving the red cathode. Pin 7 is internally protected against CRT arc

8 Ground Also connected to the heat sink.

9 Red Feedback Output driving the feedback resistor network for the red amplifier.
10 Green Output See Pin 7.
11 Green Cathode Current See Pin 6.
12 Green Feedback See Pin 9.
13 Blue Output See Pin 7.
14 Blue Cathode Current See Pin 6.
15 Blue Feedback See Pin 9.

15 microamperes input bias current with 14kΩ input resistance.
Low voltage power supply, typically 12V.

Highvoltage power supply, typically 200V.

cathode, for automatic cut-off or gain adjustment. If this control is not used, Pin 6
must be grounded.

discharges by a diode limiting the output voltage to V

DD

.

5101A-01.TBL

BLOCK DIAGRAM OF EACH CHANNEL

DD

5

40kΩ

2

1

(3, 4)

GND

8

35Ω 35Ω

1kΩ

350Ω

0.8k

(12, 9)15V

13

20k

Ω

Ω

(11, 6)

2.5kΩ

6kΩ

3pF

1.5kΩ

(10, 7)

14

2/6

5101A-02.EPS

TEA5101A

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V
V

T

T

THERMALDATA

Symbol Parameter Value Unit

R

th

R

th

ELECTRICAL CHARACTERISTICS

T

amb

Symbol Parameter Min. Typ. Max. Unit

V
V

I

I
V

R

BW Bandwidth (– 3db) (measured on CRT cathodes)

T

R-TF

G

V

I
R

SupplyHigh Voltage Pin 5 250 V

DD

SupplyLow Voltage Pin 2 35 V

CC

Output Current

I

to V

O

I

O

DD

to Ground
Output Current

to V

I

F

I

F

I

j

T

j

oper

stg

DD

to Ground
InputCurrent Pins 1 - 3 - 4 60 mA
JunctionTemperature 150 °C
Operating Ambient Temperature 0 to 70 °C
Storage Temperature – 55 to + 150 °C

Pins 7 - 10 - 13

Protected

8mA

Pins 9 - 12 - 15

45
45

(j-c) Maximum Junction Case Thermal Resistance Max. 3 °C/W
(j-a) TypicalJunction Ambient Thermal Resistance Typ. 35 °C/W

=25oC;VCC=12V ; VDD=200V; AV=50(unlessotherwise specified)

High Supply Voltage Pin 5 200 220 V

DD

Low Supply Voltage Pin 2 10 12 15 V

CC

High Voltage Supply Internal DC Current (V

DD

(without the current due to the feedback network )
Low Voltage Supply DC Current Pin 2 19 33 47 mA

CC

Output Saturation Voltage (High level)

sath

ON

=–10µA

I

O

Output Mos Transistor (Low level)
R

ON@IO

(C

=3mA

: 10pF – R Protect = 1kΩ –V

LOAD

:50V

∆ V
∆ V

out
out

: 100 V

PP

PP

out

Rise Time and Fall Time : measured between10% and90% of output
pulse(C

∆ V

Open Loop Gain 47 50 dB

O

: 10 pF – R Protect = 1 kΩ –V

LOAD

: 100 V

out

PP

P Internal Power Dissipation (see calculation below) 3.5 W

Internal Voltage Reference Pins 1-3-4 3.55 3.8 4.05 V

REF

Internal Reference Voltage Difference Between 2 Channels 5 %
VoltageReference Temperature Coefficient – 5 mV/°C
InputBias Current (V

IB

InputResistance 14 kΩ

I

: 100 V) Pins 1-3-4 15 µA

out

out

= 100V)

out

100V)

= 100 V)

Pin 5 8 12 mA

Pins 7-10-13 3 10 V

Pins 7-10-13 1.7 kΩ

10

8

50 ns

mA
mA

5101A-02.TBL

5101A-03.TBL

MHz
MHz

5101A-04.TBL

3/6

TEA5101A

TYPICALAPPLICATION

The TEA5101Aconsists of threeindependentam­plifiers. Eachof themincludes:

- A differential amplifier, the gain of which is fixed
by external feedback resistors,

12V

V

CC

10µF

25

39kΩ

10pF*

- A voltage reference,

- A PMOS transistor providing a copy of the cath­ode current,

- A protectiondiode against CRTarcdischarges.

200V

V

DD

4.7µF

9

V

DD

1nF

220Ω

* optional

1.8kΩ

4

V

REF

3

1

TEA5101A

8

7

1kΩ

6

12

V

DD

220Ω

10

11

15

V

DD

13

14

CATHODE 1

CUT-OFF
SAMPLING

4/6

5101A-03.EPS

APPLICATION INFORMATION
PC BOARD LAYOUT

The best performances of the high voltage video
amplifierwill be obtained onlywith a carefullydesi­gned PC board. Output to input capacitancesare
of particularimportance.

For a single amplifier, the input-output capaci­tance, in parallel with the relatively high feedback
resis-tance,createsa poleintheclosed-looptrans­fer function. A low parasitic capacitance (0.3pF)
feedbackresistorandHFisolated printedwires are
necessary.Further more, capacitive couplingfrom
the output of an amplifier toward the input of an­other one may induce excessivecrosstalk.

POWERDISSIPATION

The powerdissipationconsists of a staticpart and
a dynamic part. The static dissipation varies with
the output voltage. With V
typ(3.5Wmax) at V

= 100V,1.5W typ at 150V

OUT

= 200V,P

DD

stat

= 2.6W

and 3W typ at 50V(with R feedback= 39kΩ).

TEA5101A

firstvalue(100V)will be the reference.

V

OUT

The dynamic dissipation depends on the signal
spectrumand theload capacitance.

- Dynamicpowerwithatypicalpicturewith150V
modulationis typically1W.

- For asinewave,dynamicdissipationperamplifier

=FxClxV

is P

d

oppxVdd

The load capacitance C

x 0.8.

includes CRTand board

L

capacitance (10pF), and amplifier output capaci­tance (8pF) : total C
5MHZ,50 V

sinewave and a 20pFload capaci-

pp

value is about 20pF. For a

L

tance, the maximum dynamicpoweris 2.5W.

- Generally, the maximum dynamic power is
reached with a white noise (tunernoise).

- Typical valueis about 2W.

Total dissipation is typically 3.6W (2.6W + 1W).
With a maximum static dissipation of 3.5W, total
dissipationis :

- 4.5W with a typical picture(UER pattern)

- 5.5W with white noise

pp

5/6

TEA5101A

PACKAGE MECHANICAL DATA : 15 PINS– PLASTICMULTIWATT

Dimensions

Min. Typ. Max. Min. Typ. Max.

A 5 0.197

B 2.65 0.104
C 1.6 0.063
D 1 0.039
E 0.49 0.55 0.019 0.022

F 0.66 0.75 0.026 0.030
G 1.14 1.27 1.4 0.045 0.050 0.055

G1 17.57 17.78 17.91 0.692 0.700 0.705
H1 19.6 0.772
H2 20.2 0.795

L 22.1 22.6 0.870 0.890

L1 22 22.5 0.866 0.886
L2 17.65 18.1 0.695 0.713
L3 17.25 17.5 17.75 0.679 0.689 0.699
L4 10.3 10.7 10.9 0.406 0.421 0.429
L7 2.65 2.9 0.104 0.114

M 4.2 4.3 4.6 0.165 0.169 0.181

M1 4.5 5.08 5.3 0.177 0.200 0.209

S 1.9 2.6 0.075 0.102

S1 1.9 2.6 0.075 0.102

Dia. 1 3.65 3.85 0.144 0.152

Information furnishedis believed to be accurateand reliable.However, SGS-THOMSON Microelectronics assumes noresponsibility
for the consequences of useof suchinformation norfor anyinfringement of patents or otherrights ofthird partieswhich may result
from itsuse. Nolicence isgranted byimplicationor otherwiseunder any patent or patent rights of SGS-THOMSON Microelectronics.
Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all
information previouslysupplied. SGS-THOMSONMicroelectronics products are not authorized for use as criticalcomponents inlife
support devices or systems without express written approval of SGS-THOMSON Microelectronics.

Millimeters Inches

PMMUL15V.EPS

MUL15V.TBL

6/6

 1994 SGS-THOMSON Microelectronics -All Rights Reserved

Purchase of I2C Components of SGS-THOMSON Microelectronics,conveys a license under the Philips

2

I

C Patent. Rights to use these components ina I2C system, isgranted provided that the system conformsto

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2

the I

C Standard Specifications as defined by Philips.

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