ICs for Motor
AN6657, AN6657S
■ Pin Descriptions
Pin No.
Pin Name
Description
I/O
O
Voltage
Equivalent Circuit
Constant Speed
Setting
11
1
Constant speed setting pin
VCC – 1.3V
VREF
2
1
2
3
FF Setting
FF speed setting pin
Controls the speed
O
VCC – 1.3V
3
Speed Control
I
Oscillation preventive
phase compensation pin
4
5
Phase Compensation
I
+
+
Motor Drive
O
O
O
O
O
I
Motor pin connection pin
11
5
8
9
Collector connection pin of
the external NPN transistor
Collector
Connection
6
Base connection pin of the
external NPN transistor
7
Base Connection
Motor Drive –
4
6
8
Moror pin connection pin
–
50Ω
Load
Characteristics
Setting
Motor torque load
characteristics setting pin
150Ω
70kΩ
9
7
10
11
12
13
14
15
16
VCC pin
VCC
O
I
Connect to the pin o.
GND pin
To the pin 9.
GND
No connection
NC
Start/stop control pin
I
I
I
Start/Stop
Forward/Reverse
Constant Speed/FF
40kΩ
Forward/reverse control pin
14
15
16
30kΩ
Constant speed/FF control
pin
PANASONIC [ PANASONIC ]
