Panasonic AN6657 Datasheet

AN6657, AN6657S

Micromotor Forward/Reverse Electronic Governors

21.7±0.3

1.2±0.25

0.5±0.1

6.3±0.25

7.62±0.25

3 ~ 15˚

0.3

+0.1

– 0.05

3.8±0.25 (3.45)

0.51min

1
2
3
4
5
6
7
8

16
15
14
13
12
11
10
9

2.54

Unit : mmAN6657

16-pin DIL Plastic Package (DIP016-P-0300F)

■ Pin Name

Pin No.

Pin name

1
2
3
4
5
6
7
8

Constant speed setting
Speed control
Speed control
Phase compensation
Motor drive +
Collector connection
Base connection
Motor drive –

9
10
11
12
13
14
15
16

Load characteristic setting
V

CC

To the pin 9
GND pin
NC
Start/Stop
Forward/reverse
Constant speed/FF

Pin No.

Pin name

0.4

0.4±0.251.27

10.1±0.3

Unit : mmAN6657S

0.1±0.1

0.3

16-pin PANAFLAT Plastic Package (SOP016-P-0225A)

1.5±0.2

0.15

0.65

1
2
3
4
5
6
7

8

16
15
14
13
12
11
10
9

6.5±0.3

4.2±0.3

■ Block Diagram

■ Overview

The AN6657 and the AN6657S are electronic governor ICs
capable of controlling the forward/reverse speed, fast forward,
rewind, and start/stop of the micromotors used for the
radio/cassette tape recorders, automatic answering telephone
sets, and so on.

■ Features

•

Operating supply voltage range : VCC=4.5V to 14V

•

Stable reference voltage (1.3V) and easy speed control

•

Large starting torque and maximum control touque Good

secular drift because of external power transistor

•

Provided with the motor stop function : ICC=20µA or less at

stop time

•

Capable of controlling forward/reverse rotation, fast for-

ward/constant speed, and start/stop via 3 input pins

■ Applications

Speed control of the micromotors for the radio cassettes

Speed control of the micromotors for the microcassettes of
the automatic answering telephone sets

Control of the tape loading motors for the DATs, etc.

16115214313412

GND

Drive Mode
Select Logic

Ref.Voltage

Amp.

1kΩ

10kΩ

5

V

CC

1161079

Forward/Reverse
Drive Circuit

8

V

CC

I

CC

I

O

P

D

T

opr

T

stg

V
mA
mA

mW

˚C

˚C

■ Absolute Maximum Ratings (Ta=25˚C)

14.4
50

700
500
380

–20 to +70
–55 to +150
–55 to +125

Supply voltage
Supply current
Output current

Power dissipation

Operating ambient temperature
Storage

temperature

AN6657
AN6657S

AN6657
AN6657S

Parameter Symbol Rating Unit

AN6657, AN6657S

1 2 3 4 5 6 7 8

16 15 14 13 12 11 10 9

V

CC

–

+

–

M

+

4.7µF

0.022µF

0.01µF

2SD2249

or

2SD2177

To Mechanism Controller, etc.

NC

1.2Ω

4.3kΩ

15kΩ

1kB

680Ω

3900
rpm/˚C

2000
rpm/˚C

HKN-3A6LDI (Ra=13Ω)
(Matsushita Micromotors Co. Ltd.)

■ Application Circuit

■ Electrical Characteristics (Ta=25˚C)

Bias current

I

bias

10 mA4

V

CC

=5V

Prestart current

I

stop

µA

V

CC

=5V

Reference voltage

V

ref

V

V

CC

=5V

Start voltage

V

CC (s)

V

Supply voltage at which a 50mA current flows to Ra

Start current

I

st

mA

V

CC

=4.5V, Ra=13Ω

%

VCC=

5V, IL=

55mA, N=2000rpm

Rated load r.p.m.

N

L

%0

VCC=

5V, IL=

55mA, N=2000rpm

Forward/reverse r.p.m. difference

∆N

Logi

times

V

CC

=5V

, IL=

55mA, N=4000rpm

FF/rated r.p.m. ratio

∆N

rpm/V

R.p.m. characteristics on voltage change

∆N

V

V

V

CC

=4.5V to 9V, IL=55mA

Select mode input H

V

H

VCC=5V to 14V

6

2.15

1.5

50

3

20

10

5

1.85

3

V

Select mode input L

V

L

VCC=5V to 14V

0.70

%/˚C0.015

Ref. voltage temperature characteristic

∆Vr/Ta

V

CC

=5V, Ta=0˚C to 60˚C

1.1

130
–10

–5

0

1.3

V0.62

Current limiting starting voltage

V

Lim

VCC=9V, RT=1.3Ω

0.70.55

rpm

R.p.m. characteristics on load change

∆N

L

VCC=4.5V, IL=55mA to 90mA

120

2

Parameter Symbol Condition min typ max Unit

■ Recommended Operating Range (Ta=25˚C)

V

CC

Operating supply voltage range

Parameter Symbol Range

4.5V to 14V