SANYO LA6543M Datasheet

Ordering number : EN5904

LA6543M

Monolithic Linear IC

LA6543M

4-Channel Bridge (BTL) Driver for CD-ROM

Overview

The LA6543M is a 4-channel bridge (BTL) driver
developed for CD-ROM applications.

Functions

Package Dimensions

unit: mm

3129-MFP36SLF

[LA6543M]

36

19

• 4-channel power amplifier with bridge circuit (BTL)

• IO max: 1A

• Integrated muting circuit (MUTE: Output OFF at Low,

7.9

9.2

output ON at High. MUTE1 is for channel 1, and MUTE2
for channels 2, 3 and 4.)

• Integrated thermal shutdown circuit

• Divided output stage power supply (VS1: CH1, CH2, CH3;
VS2: CH4)

118

15.3

0.4

0.8

0.25

2.250.1

2.5max

0.85

SANYO : MFP36SLF

0.65

Specifications

Maximum Ratings at Ta = 25°C

Parameter Symbol Conditions Ratings Unit
Maximum supply voltage 1 14 V
Maximum supply voltage 2 14 V
Input voltage Input pins 13 V
Mute pin voltage 13 V
Allowable power dissipation Pd max IC only 0.9 W

Operating temperature Topr °C
Storage temperature Tstg °C

Note 1: Specified substrate 76.1 x 114.3 x 1.6 (t)mm, glass exposy

VCCmax

VSmax

VINmax

V

MUTE

VS1, 2

VIN1 to 4

max

Specified substrate Note 1 2.1 W

– 20 to +75

– 55 to +150

10.5

Operating Conditions at Ta = 25°C

Parameter Symbol Conditions Ratings Unit
Recommended operation voltage 1 4 to 13 V
Recommended operation voltage 2-1 4 to 13 V
Recommended operation voltage 2-2 4 to 13 V

*V

> VS1, 2

CC

Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft's
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.

V

CC

VS1
VS2

VS1: CH1 to CH3
VS2: CH4

output reference power supply

SANYO Electric Co., Ltd. Semiconductor Business Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

N1798RM(KI)

No. 5904-1/7

LA6543M

Electrical Characteristics at V

Parameter Symbol Conditions

VCC no-load current drain

1 no-load current drain

V

S

V

2 no-load current drain

S

Output offset voltage

Input voltage range 0.5 5 V
Output voltage (source) Vsource Plus and minus outputs at high level 4.4 4.7 V

(sink) Vsink Plus and minus outputs at low level 0.3 0.6 V

Closed circuit voltage gain VG1 Voltage gain between CH1 to CH3 BTL amplifiers 7 dB

Slew rate SR (Note 1) 0.5 V/µs
Mute ON voltage MUTE1, MUTE2 voltage when output is ON (Note 2) 1.5 2 V
Mute ON current MUTE1, MUTE2 current when output is ON (Note 2) 6 10 µA

= 12V, VS = 5V, Ta = 25°C

CC

Ratings

min typ max

All outputs ON (MUTE1, MUTE2: High) 5 10 20 mA

I

1

CC

I

2

All outputs OFF (MUTE1, MUTE2: Low) 5 10 mA

CC

1-1

I

CH1 - CH2 ON (MUTE1, MUTE2: High) 20 30 mA

S

CH1 - CH2 OFF (MUTE1, MUTE2: Low) 4 mA

1-2

I

S

CH3 - CH4 ON (MUTE1, MUTE2: High) 5 10 mA

2-1

I

S

CH3 - CH4 OFF (MUTE1, MUTE2: Low) 4 mA

2-2

I

S

VOF1 to 4

V

Potential difference between plus and minus outputs
for CH1 to CH4

Input voltage range for VIN1 to VIN4

V

IN

= 700 mA

I

O

I

= 700 mA

O

VG2 Voltage gain between CH4 BTL amplifiers 14 dB

MUTE

I

MUTE

–50 +50 mV

Unit

Note 1: Guaranteed design value
Note 2: MUTE turns amplifier output ON at High and OFF at Low. (Output impedance becomes high.) This applies to MUTE1 and
MUTE2.

2.4

With substrate

2.0

1.6

1.2

IC only

0.8

0.4

0

Allowable power dissipation, Pd max – mW

0–20 20 40 60 75 80 100

Pd max – Ta

2.1

0.9

Ambient temperature, Ta – ˚C

No. 5904-2/7

Pin Assignment

LA6543M

V

SS

RF

RF

NC

V

SS

2-OUT

MUTE1

V

IN

VG1

V

IN

VG2

V

IN

VG3

V

IN

1

2

3

4

2

5

6

7

1

8

9

2

36

35

34

33

32

31

30

29

28

RF

RF

V

V

V

V

V

V

V

SS

SS

O

O

S

O

O

1

2

1

3

4

1

1-OUT

LA6543M

10

11

3

12

13

4

27

26

25

24

5

V

O

6

V

O

V

2

S

7

V

O

VG4

MUTE2

V

CC

RF

RF

14

15

16

17

18

23

22

21

20

19

Top view

V

V

V

RF

RF

8

O

REF

REF

OUT

IN

A11323

No. 5904-3/7