MITSMI MM1469XH Datasheet

MITSUMI

4-ch BTL Motor Driver for CD Players

4-ch BTL Motor Driver for CD Players

Monolithic IC MM1469

Outline

This IC is a 4-ch BTL driver developed for driving CD player motors and actuators.
With built-in 3.3V (MM1469PH) or 5.0V (MM1469XH) regulator and general-purpose op amp, it supports a
variety of applications.

Features

(1) External resistor allows gain adjustment.
(2) Few external parts.
(3) Built-in 3.3V or 5.0V regulator. (Requires external PNP Tr.)
(4) Built-in general-purpose op amp.
(5) Built-in thermal shutdown circuit.

Package

HSOP-28

Applications

(1) CD radio cassette recorder
(2) VCD

Block diagram

(MM1469XH)

10kΩ

10kΩ

10kΩ

(3.3kΩ)

10kΩ

10kΩ

50kΩ

50kΩ

10kΩ

D.BUFD.BUF

D.BUF D.BUF D.BUF

V

CC VCC

D.BUF D.BUF

D.BUF

DRIVER MUTE

1

28 27 26 25 24 23 22

21 20 19 18 17 16 15

2 3 4 5 6 7

8 9 10 11 12 13 14

T.S.D

Level shift

Level shift

Level shift

Level shift

T. S. D : Thermal Shut Down
D. BUF : Driver Buffer

13kΩ

13kΩ

1kΩ

1kΩ

1kΩ

1kΩ

13kΩ 13kΩ

note Constane in parenehesis is regulator output voltage 3.3V(MM1469PH).

MITSUMI

4-ch BTL Motor Driver for CD Players

Pin configuration

1

3

7

6

2

4

5

8

13

11

14

12

9

10

28

26

22

23

27

25

24

21

16

18

15

17

20

19

ch1 OUT-A

ch1 OUT

-

B

ch1 IN

-

A

ch1 IN

-

B

Tr

-

B

V

REG

-

OUT

MUTE

GND

ch2 IN

-

B

ch2 IN

-

A

ch2 OUT

-

B

ch2 OUT

-

A

SUBGND

OP OUT

SUBGND

ch4 OUT

-

A

ch4 OUT

-

B

ch4 IN

-

A

ch4 IN

-

B

BIAS

-

IN

V

CC

VCC

ch3 IN-B

ch3 IN

-

A

ch3 OUT

-

B

ch3 OUT

-

A

OP IN(+)

OP IN(–)

1 ch1 OUT–A 15 OP IN(–)
2 ch1 OUT–B 16 OP IN(+)
3 ch1 IN–A 17 ch3 OUT–A
4 ch1 IN–B 18 ch3 OUT–B
5 Tr–B 19 ch3 IN–A
6 V

REG– OUT 20 ch3 IN–B

7 MUTE 21 V

CC

8 GND 22 VCC

9 ch2 IN–B 23 BIAS–IN
10 ch2 IN–A 24 ch4 IN–B
11 ch2 OUT–B 25 ch4 IN–A
12 ch2 OUT–A 26 ch4 OUT–B
13 SUBGND 27 ch4 OUT–A
14 OP OUT 28 SUBGND

MITSUMI

4-ch BTL Motor Driver for CD Players

Pin No. Pin Name Function Internal equivalent circuit

1 ch1–OUT A

12 ch2–OUT A

17 ch3–OUT A

27 ch4–OUT A

Driver ch1 negative output

Driver ch2 negative output

Driver ch3 negative output

Driver ch4 negative output

2

1

12kΩ 12kΩ

600

Ω

600

Ω

V

CC

12

17

27

11

18

26

2 ch1–OUT B

11 ch2–OUT B

18 ch3–OUT B

26 ch4–OUT B

Driver ch1 positive output

Driver ch2 positive output

Driver ch3 positive output

Driver ch4 positive output

3 ch1–IN A

10 ch2–IN A

19 ch3–IN A

25 ch4–IN A

Driver ch1 input

Driver ch2 input

Driver ch3 input

Driver ch4 input

4

3

10kΩ10kΩ

10kΩ

10µA

V

CC

2.5V

10

19

25

9

20

24

4 ch1–IN B

9 ch2–IN B

20 ch3–IN B

24 ch4–IN B

Driver ch1 input, gain adjustment pin

Driver ch2 input, gain adjustment pin

Driver ch3 input, gain adjustment pin

Driver ch4 input, gain adjustment pin

Terminal explanations

5 Tr–B Connect to external transistor base

5

15kΩ 40kΩ

6kΩ

V

CC

6 VREG –OUT Constant voltage output, connects to

external transistor collector

6

10kΩ

10kΩ

3kΩ 3kΩ

V

CC

10µA

2.5V