Datasheet AN5448 Datasheet (Panasonic)

ICs for TV

AN5448

TILT correction IC

■ Overview

The AN5448 is a rotation (TILT) correction IC in
which the control circuit and the drive circuit are inte­grated on a single chip.

■ Features

• TILT output range: 1.7 V to 7.4 V

• Maximum output current: 200 mA

• Frequency characteristics: 200 kHz

■ Applications

• CRT monitor

■ Block Diagram

0.5±0.1

2.54

1.5±0.25

1.5±0.25

3.0±0.3

Unit: mm

30°

1.4±0.3

CC2

V

23.3±0.3

6.0±0.3

2.4±0.25

3.3±0.25

9
8
7
6
5
4
3
2

1

+0.1

0.3

−0.05

SIP009-P-0000C

2

+

4

In

−

1

V

CC1

Bias

9

GND1

3

N.C.

6

N.C.

7

8

5

GND2

1

AN5448 ICs for TV

■ Pin Descriptions

Pin No. Description

1 Supply voltage 12 V (V
2 Output block supply voltage 12 V (V
3N.C.
4 TILT control input
5 Output block GND (GND2)
6N.C.
7 TILT positive output
8 TILT negative output
9 GND (GND1)

■ Absolute Maximum Ratings

Parameter Symbol Rating Unit

Supply voltage V

Supply current I

2

Power dissipation
Operating ambient temperature
Storage temperature

Note) Be sure to comply with "■ Usage Notes" for the sequence of turning on power supply.

1: Except for the power dissipation, operating ambient temperature and storage temperature, all ratings are for Ta = 25°C.

*

2: The power dissipation shown is for the IC package at Ta = 75°C. Refer to "■ Technical Information" for details.

*

*

1

*

1

*

CC1

CC

CC

)

)

CC2

V

CC1

V

CC2

I

CC1

I

CC2

P

D

T

opr

T

stg

13.5 V

13.5
30 mA

200
524 mW

−20 to +75 °C

−55 to +150 °C

■ Recommended Operating Range

Parameter Symbol Range Unit

Supply voltage V

TILT control input V
TILT positive output I
TILT negative output I
Peak current I

Note) For the conditions in evaluating the peak current, refer to "■ Electrical Characteristics • Explanations of testing method".

CC1

V

CC2

4-9

7

8

7

I

8

2

10.8 to 13.2 V

7.4 to 13.2
0 to 6 V

−200 to +200 mA

−200 to +200 mA

− 0.3 to +0.3 A

− 0.3 to +0.3

ICs for TV AN5448

■ Electrical Characteristics at Ta = 25°C

Parameter Symbol Conditions Min Typ Max Unit

Circuit current (pin 1) I
Circuit current (pin 2) I
Circuit voltage (pin 7) V
Circuit voltage (pin 8) V
Output voltage difference (1) V
Output voltage difference (2) V
Output voltage difference (3) V

7-8 (1)

7-8 (2)

7-8 (3)

• Design reference data

Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.

Parameter Symbol Conditions Min Typ Max Unit

TILT output fluctuation

∆V

with supply voltage (high) V
TILT output fluctuation

∆V

with supply voltage (low) V
TILT output fluctuation ∆V

with temperature T

V

CC1

CC2

7-5

8-5

CC1

V

CC1

V

CC1

V

CC1

= 12 V, V
= 12 V, V
= 12 V, V
= 12 V, V

= 12 V 0.6 1.8 4.0 mA

CC2

= 12 V  01mA

CC2

= 12 V 4.1 4.5 4.9 V

CC2

= 12 V 4.1 4.5 4.9 V

CC2

V7 −V8 at V4 = 2.5 V − 0.45 0 +0.45 V
V7 −V8 at V4 = 5 V 5.3 5.7 6.1 V
V7 −V8 at V4 = 0 V −6.1 −5.7 −5.3 V

V

7-8

V

CCH

V

7-8

V

CC1

7-8/TaVIN

= 12 V → 13.2 V, ∆V

CC1

= 12 V → 13.2 V

CC2

= 12 V → 10.8 V, ∆V

CC1

= 12 V → 10.8 V

CC2

= 2.5 V, ∆V

= +25°C → +75°C and

a

at ±0.2  V

7-8

at ±0.2  V

7-8

at ±0.2  V

7-8

Ta = +25°C → −20°C

• Explanations of testing method

Conditions on evaluation of the peak current

1

2

3

4

5

6

7

8

9

V

CC

12 V

20 µF

CC1VCC2

V

24 Ω

N.C.

GND2

22 Ω/10 W

N.C.

12 V

300

A

mA

GND1

CloseOpen

6.8 kΩ

5 kB

1 s 1 s

Confirm that the IC operates normally after turning on and off SW 100 times at the interval of one second.
Carry out the above test when pin 7 is replaced with pin 8.

3

AN5448 ICs for TV

■ Terminal Equivalent Circuits

Pin No. Equivalent circuit Description DC voltage (V)

1 Supply voltage 12 V (V

Supply voltage pin.

1

V

CC1

Apply DC 12 V.

): 12

CC1

2

12 V

2

10 Ω/2 W

7

5

8

Output-block power supply 12 V (V

CC2

Supply voltage pin for TILT output
Apply DC 12 V via a protection resis­tor.

):

12

3  N.C. 

4 TILT control input: 

Control input for TILT

V

CC1

Apply DC 0 V to 5 V. (typ. = 2.5 V)

4

3 kΩ

GND1

5 GND2: 0

2

The grounding pin for TILT output
block.

7

5

8

4

ICs for TV AN5448

■ Terminal Equivalent Circuits (continued)

Pin No. Equivalent circuit Description DC voltage (V)

6  N.C. 

7 TILT positive output: 1.7 to 7.4

2

The positive output pin for TILT
It outputs the same polarity as pin 4.

7

5

8 TILT negative output: 1.7 to 7.4

2

The negative output pin for TILT
It outputs the reverse polarity of pin 4.

8

5

9 GND1: 0

9

GND1

The grounding pin for 12 V system.

■ Usage Notes

1. The sequence of power supply turning on and off

1) Turning on sequence: First time: Pin 2 (12 V power supply)
Second time: Pin 1 (12 V power supply)

2) Turning off sequence: First time: Pin 1 (12 V power supply)
Second time: Pin 2 (12 V power supply)

If pin 2 voltage is decreased to 4.5 V or less under the established state of pin 1, an abnormal current of 20 mA
to 50 mA flows to pin 1, so that there is a possibility of breakdown of the IC. The above setting sequence should
be observed.

The normal operation of the IC has been confirmed after tuning on and off SW 100 times at the interval of 1
second with the following testing circuit. Therefore, there will be no problem even if a current under 50 mA is
allowed to flow to pin 1 for only about 1 second at turning on and turning off the set power supply. However, we
do not give you guarantee by our shipping test.

5

AN5448 ICs for TV

■ Usage Notes (continued)

2. Testing circuit for checking abnormal current

AN5448

30 mA

CC1

V

1

V

CC

12 V

V

2

CC2

27 Ω

SW

3

V

CC

12 V

3. Principle of abnormal current generation

12 V

1

4

5

GND

6

7

8

9

GND

100 Ω

12 V→0 V

27 Ω

2

7

5

Note) The same also applies to pin 8

6

ICs for TV AN5448

■ Usage Notes (continued)

4. The change in the output voltage by V

voltage change.

CC2

1

CC1

V

V

CC

2

CC2

V

R2

10 Ω

3

4

5

V

IN

6

7

8

9

100 Ω

If pin 2 voltage becomes a voltage of 8.3 V or less by making R2 value larger, the upper limit of TILT output voltage

is restricted and becomes as shown in figure 1.

Care must be taken at using V

at a voltage of 8.3 V or less.

CC2

(V)

7.4

4.5

TILT output voltage

1.7

0

0 2.5 5

V

IN

Figure 1

(V)

7

AN5448 ICs for TV

■ Technical Information

• PD  Ta curve of SIP009-P-0000C

 T

P

D

1000

874
800

(mW)

D

600

400

Power dissipation P

200

0

0 25 150

50 75 100 125

Ambient temperature Ta (°C)

a

Independent IC
without a heat sink

R

= 143°C/W

th (j−a)

P

= 874 mW (25°C)

D

■ Application Circuit Example

1

2

3

4

5

6

V

CC

12 V

20 µF

CC1VCC2

V

10 Ω

N.C.

6.8 kΩ

5 kB

The above characteristics are reference values based on design and not guaranteed values.

*

GND2

N.C.

100 Ω/1 W

7

8

9

GND1

8