m56745fp Mitsumi Electronics, Corp., m56745fp Datasheet - Page 5

• Manufacturer Part Number: m56745fp
• Description: Spindle Motor Driver
• Manufacturer: Mitsumi Electronics, Corp.

Reference voltage
APPLICATION CIRCUIT
Control voltage
Hall bias
resistance
Hw
Hv
Hu
19
20
21
22
23
24
18
14
15
16
ECR
EC
CI
Hu+
Hu-
Hv+
Hv-
Hw+
Hw-
Hall
Bias
converter
V/I
TSD
GND
MATRIX
120˚
converter
I/I
Vref
–
+
MITSUBISHI <CONTROL / DRIVER IC>
13
VM
M.Gnd
Vcc
S/S
Rnf
Rs
W
U
V
34
35
36
33
32
31
17
SPINDLE MOTOR DRIVER
1
Motor current sense
Start/Stop
M56745FP
Power Supply
Motor power supply
5V
12V