MITSUMI
Fan Motor Driver MM1784XF
Fan Motor Driver
Monolithic IC MM1784XF
Outline
This IC is a motor driver IC for 5~12V fan.
The single-phase full-wave drive switching noise is small, efficient motor drive is possible.
This IC has a built-in Lock protection, FG output,TSD is suitablel driver for fan motor.
Features
1.
2.
3.
4.
5.
6.
7.
8.
9.
Supply voltage range
Output current
Operating temperature range
Consumption current (Drive)
Output put Vsat voltage
(Upper + lower Vsat voltage)
Hall Bias voltage (VHB=1.5V)
Lock-Protection
Auto Restart
Thermal Shut Down circuit
2.8~14V
0.8A
−40~90°C
5mA typ.
1.1V typ, Io=200mA
Built-in
Built-in
Built-in
Built-in
Package
SOP-10A
Applications
1. Cooling fan
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
Fan Motor Driver MM1784XF
Block Diagram
1
10
9
2
VHB
3
VCC
8
Charge / Discharge
4
7
5
6
Pin Assignment
1
10
2
9
3
8
4
7
5
6
SOP-10A
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
IN+
HB
INCT
OUT1
GND
OUT2
VCC
FG
LD
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
Fan Motor Driver MM1784XF
Pin Description
Pin No.
Pin name
Functions
Internal equivalent circuit diagram
VCC
1
IN+
3
IN-
Hall input positive (+)
Hall input negative (-)
IN–
3
IN+
1
VCC
2
HB
Hall element bias
2
VCC
ICT1
4
CT
Capacitor Time
4
ICT2
VCC
5
OUT1
Driver output positive (+)
6
GND
GND
5 OUT1
7
OUT2
Driver output negative (-)
7 OUT2
8
VCC
Vcc
GND
10
9
FG
10
LD
9
Frequency generator
Lock detection
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
Fan Motor Driver MM1784XF
Absolute Maximum Ratings
Item
VCC supply voltage
Output current
Output voltage
LD/FG output voltage
LD/FG output current
HB output current
Power dissipation
Operating temperature range
Storage temperature range
Note1 : Use base condition
(Except where noted otherwise Ta=25°C)
Symbol
VCC
IO
VO
VRD/VFG
IRD/IFG
IHB
Pd
TOPR
TSTG
Units
V
A
V
V
mA
mA
W
°C
°C
114.3mm×76.2mm, t=1.5mm Copper leaf 50% more than,
Material=Glass Epoxy
Recommended Operating Conditions
Item
VCC supply voltage
Ratings
−0.5~15
0.8
15
15
5
10
0.8(Note1)
−40~+90
−55~+150
Symbol
VCC
(Except where noted otherwise Ta=25°C)
Min.
2.8
Typ.
12
Max.
14
Units
V
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
Fan Motor Driver MM1784XF
Electrical Characteristics
Item
(Except where noted otherwise VCC=12V, Ta=25°C)
Symbol
Measurement conditions
Min. Typ. Max. Units
Supply current1
ICC1
Operation (CT=L)
5
7.5
mA
Supply current2
ICC2
Lock protection (CT=H)
3
4.5
mA
Gain
GV
(Note2)
48
51
dB
Output "L" voltage
VOL
Io=200mA
0.2
0.3
V
Output "H" voltage
VOH
Io=200mA
0.9
1.2
V
Offset voltage of hall input
VOFF
7
15
mV
Input voltage range of hall input
VCM
0
Vcc-1.5
V
Charge current
ICTC
2.0
2.8
3.5
µA
Discharge current
ICTD
0.15
0.23
0.30
µA
charge/discharge current ratio
RCT
10.2
12
13.8
CT charge voltage
VCT1
1.6
1.7
1.8
V
CT discharge voltage
VCT2
0.6
0.7
0.8
V
Supply Current
Motor driver circuit
45
Lock circuit
RCT=ICTC/ICTD
Output circuit
LD output "L" voltage
VLD
IRD=5mA
0.1
0.2
V
FG output "L" voltage
VFG
IFG=5mA
0.1
0.2
V
LD output leak current
ILD
VRD=15V
1
30
µA
FG output leak current
IFG
VFG=15V
1
30
µA
VHB
IHB=5mA
1.5
1.7
V
Thermal shut down temperature
TSD
(Note2)
175
°C
Thermal shut down reset temperature
Thys(SD)
(Note2)
150
°C
Hall bias circuit
Hall output voltage
1.3
Thermal shut down circuit
Note2 : The parameter is guaranteed by design.
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
MITSUMI
Fan Motor Driver MM1784XF
Measuring Circuit
Supply current 1, 2
Gain
A
ICC1 2
12V
47μF
SW1
a
b
SW2
a
b
47μF
1
IN+
LD 10
2
HB
FG
9
3
IN–
VCC
8
4
CT
OUT2
7
5
OUT1
GND
6
Vin
6V
SW3
a
1
IN+
LD 10
2
HB
FG
9
3
IN–
VCC
8
4
CT
OUT2
7
5
OUT1
GND
6
Vout V
b
GV= Vout / Vin
Output "L", "H" voltage
Offset voltage of hall input
12V
12V
47μF
47μF
100k
SW1
a
b
IN+
LD 10
1
IN+
LD 10
2
HB
FG
9
2
HB
FG
9
3
IN–
VCC
8
3
IN–
VCC
8
4
CT
OUT2
7
5
OUT1
GND
6
V
SW2
a
1
b
4
CT
5
OUT1
OUT2
7
GND
6
6V
200mA
V
200mA
Input voltage range of hall input
VOH
VOL
V
Charge, Discharge current CT charge, discharge voltage
12V
12V
47μF
47μF
100k
100k
1
IN+
LD 10
2
HB
FG
9
3
IN–
VCC
8
4
CT
OUT2
7
5
OUT1
GND
6
SW1
a
V
b
SW2
a
b
1
IN+
LD 10
2
HB
FG
9
3
IN–
VCC
8
4
CT
OUT2
7
5
OUT1
GND
6
A
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
V
MITSUMI
Fan Motor Driver MM1784XF
LD output "L" voltage, leak current
FG output "L" voltage, leak current
b
a
1
SW1
a
b
LD 10
2
HB
FG
9
3
IN–
VCC
8
15V
b
V
5mA
1
IN+
LD 10
2
HB
FG
9
3
IN–
VCC
8
4
CT
OUT2
7
5
OUT1
GND
6
47μF
SW2
a
IN+
A
b
4
CT
5
OUT1
OUT2
7
GND
6
a
15V
47μF
6V
SW3
a
b
Hall output voltage
12V
47µF
SW1
a
b
V
IN+
LD 10
2
HB
FG
9
3
IN–
VCC
8
4
CT
OUT2
7
5
OUT1
GND
6
5mA
SW2
a
1
b
A
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.
12V
V
5mA
MITSUMI
Fan Motor Driver MM1784XF
Typical Application Circuit
1
10
2
9
VHB
Hall
Element
3
VCC
8
VCC
Charge / Discharge
7
5
6
M
4
Truth Table
IN-
IN+
H
L
L
H
CT
L
H
OUT1
OUT2
FG
H
L
L
L
H
H
OFF
OFF
LD
Mode
L
Operation
H
Lock protection
• Any products mentioned in this catalog are subject to any modification in their appearance and others for improvements without prior notification.
• The details listed here are not a guarantee of the individual products at the time of ordering. When using the products, you will be asked to check their specifications.