BA6664FM Rohm Semiconductor, BA6664FM Datasheet - Page 6

• Manufacturer Part Number: BA6664FM
• Description: IC MOTOR DRIVER CD/DVD HSOP-M28
• Manufacturer: Rohm Semiconductor

Specifications of BA6664FM

• Applications: DC Motor Driver, 3 Phase
• Number Of Outputs: 1
• Current - Output: 1.3A
• Voltage - Load: 3 V ~ 14 V
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -20°C ~ 75°C
• Mounting Type: Surface Mount
• Package / Case: 28-HSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

BA6859AFP-Y,BA6664FM,BD6671FM
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2.2
2.0
1.0
2) BA6664FM
Fig.7 Power Dissipation Reduction (BA6664FM、BD6671FM)
*
Reduced by 11.6 mW/℃ over 25℃, when mounted on a glass epoxy board
(70 mm x 70 mm x 1.6 mm).
0
25
50
Hall1
Hall1
Hall1
GND
75
A3
A2
A1
H2+
H3+
H3
H2 -
H1+
Output to the motor will be opened at a chip tempe
175°C (Typ.). Do not use the IC in excess of a chip
rature of temperature of 150°C.
H1
Output will be open when the reverse rotation of the motor is
detected.
-
-
13
10
12
14
11
2
9
85
7
8
4
HALL AMP
100
+
+
+
+
+
+
-
-
-
-
-
-
TL
DRIVER
CONTROL
GAIN
125
Fig.6 BA6664FM Block Diagram
SENSE AMP
CK
D
CURRENT
R
－
Q
Q
150
TSD
Ta(℃)
+
BRAKE MODE
SHORT BRAKE
Hall Bias
-
TORQUE
SENSE AMP
VCC
PS
SWITCH
FIN
VCC
GAIN
6/17
VCC
28
27
26
25
24
23
22
21
20
19
18
17
16
15
BA6664FM Pin Function Table
Pin No. Pin name
RNF
PS
ECR
FR
CNF
GSW
FG
EC
FG2
SB
BR
VH
VM
VCC
FIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
500Ω
1
2
3
4
5
6
7
8
9
Torque limit current and I/O gain settings are made by
the RNF resistance value.
Resistance of 0.4 to 1.0Ω is recommended.
RNF
0.5Ω
0.1µF
+
-
V
1µF
500Ω
M
GSW
GND
N.C.
N.C.
N.C.
CNF
ECR
VCC
RNF
FG2
H1+
H2+
H3+
N.C
H1-
H2-
H3-
FIN
VM
SERVO
SIGNAL
VH
BR
SB
FR
EC
PS
FG
A3
A2
A1
+
-
1µF
The motor torque current is controllable.
I/O gain
Speed detection is attained by FG signal output.
If the ECR voltage is set between 1.6 and 2.2V, the
maximum torque limit current will be obtained.
The detection of motor rotation direction is possible.
Capacitor for noise level mitigation.
The recommended value is 0.47 µF to 10 µF.
The short brake is operated regardless of brake mode settings.
Connect a capacitor for phase compensation.
The recommended value is 0.1µF.
Short brake and reversed brake settings are possible.
Resistor for setting Hall input level .
The recommended value is 200 Ω to 1k Ω.
N.C.
Output pin
N.C.
Output pin
N.C.
N.C.
Output pin
GND pin
Hall signal input pin
Hall signal input pin
Hall signal input pin
Hall signal input pin
Hall signal input pin
Hall bias input pin
Hall bias input pin
Brake mode pin
Capacitor connection pin for phase
compensation
Short brake pin
FG 3-phase component output pin
Rotation detection pin
Output voltage control reference pin
Output voltage control pin
Power-saving pin
FG signal output pin
Power supply pin
Gain switching pin
Motor power supply pin
Resistance connection pin for output
current detection
GND
The power saving mode is turned ON by low-level voltage,
and the circuit current and motor output will stop.
Function
Technical Note
2010.06 - Rev.A