The LA6584JA is Single-phase bipolar fan motor is put into silent driving by means of BTL output linear drive,
offering high efficiency and power saving by suppressing the reactive current. Lock protection and rotation signal (FG,
RD) circuits are built in, ensuring optimum application to small fans for notebook PC, consumer equipment power
supply, car audio system, CPU cooler, etc. that require high reliability and low noise.
Functions and Applications
•
Single-phase full-wave driver for fan motor
Specitications
Absolute Maximum Ratings
at Ta = 25°C
Parameter
Output voltage
Output current
Output withstand voltage
RD/FG output pin output
Withstand voltage
RD/FG output current
HB output voltage
Allowable dissipation
Operating temperature range
Storage temperature range
IRD/FG max
IB max
Pd max
Topr
Tstg
Mounted on a specified board*
5
10
0.8
-30 to +90
-55 to +150
mA
mA
W
°C
°C
Symbol
VCC max
IOUT max
VOUT max
VRD/FG max
Conditions
Ratings
15
1.2
15
15
Unit
V
A
V
V
* Mounted on a specified board (114.3mm × 76.1mm × 1.6mm, Glass epoxy)
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Semiconductor Components Industries, LLC, 2013
May, 2013
O1012NKPC 20120305-S00001 No.A2125-1/5
LA6584JA
Recommended Operating Range
at Ta = 25°C
Parameter
Supply voltage
Common-phase input voltage
range of Hall input
Conditions
VCC
VICM
Conditions
Ratings
2.8 to 14.0
0 to VCC-1.5
Unit
V
V
Electrical Characteristics
at Ta = 25°C VCC = 12V, unless otherwise specified.
Ratings
Parameter
Circuit current
Conditions
ICC1
ICC2
Lock detection capacitor charge
current
Capacitor discharge current
Capacitor charge and discharge
current ratio
CT charge voltage
CT discharge voltage
OUT output L saturation voltage
OUT output H saturation voltage
Hall input sensitivity
RD/FG output pin L voltage
RD/FG output pin leak current
HB output L voltage
VCT1
VCT2
VOL
VOH
VHN
VRD/FG
IRD/FGL
VHBL
IO = 200mA
IO = 200mA
Zero peak value
(including offset and hysteresis)
IRD/FG = 5mA
VRD/FG = 15V
IHB = 5mA
1.3
0.1
1
1.5
0.2
30
1.7
V
μA
V
1.6
0.6
1.7
0.7
0.2
0.9
7
1.8
0.8
0.3
1.2
15
V
V
V
V
mV
ICT2
RCT
RCD = ICT1/ICT2
0.15
9
0.23
12
0.30
15
μA
-
ICT1
Conditions
During drive (CT = L)
During lock protection (CT = H)
min
4
2
2.0
typ
6
4
2.8
max
9
6
3.5
Unit
mA
mA
μA
Package Dimensions
unit : mm (typ)
3179C
1.0
Pd max -- Ta
Specified board: 114.3×76.1×1.6mm
3
Material: Glass epoxy
6.5
20
11
Allowable power dissipation, Pd max -- W
0.8
4.4
6.4
0.6
0.5
0.4
1
0.65
(0.33)
10
0.22
1.5max
0.38
0.15
0.2
(1.3)
0
--30 --20
0
20
40
60
80
90
100
Ambient temperature, Ta --
°C
0.1
SANYO : SSOP20(225mil)
No.A2125-2/5
LA6584JA
Truth Table
IN-
H
L
-
IN+
L
H
-
H
CT
L
OUT1
H
L
OFF
OUT2
L
H
OFF
FG
L
H
-
H
Lock protection
RD
L
Mode
During rotation
Pin Assignment
FGND
FGND
FGND
OUT2
NC
VCC
NC
FG
RD
NC
1
2
3
4
5
20
19
18
17
16
FGND
FGND
FGND
OUT1
NC
CT
IN-
HB
IN+
NC
LA6584JA
6
7
8
9
10
15
14
13
12
11
Top view
No.A2125-3/5
LA6584JA
Sample Application Circuit
Di
*1
Cr
VCC
RD
FG
*4
R2
HB
H
IN-
*2
OUT1
HB
IN+
R2
*5
CT
OUT2
R1
GND
*3
H
IN-
On board element
IN+
*1
*2
*3
*4
*5
When Di to prevent breakdown in case of reverse connection is used, it is necessary to insert a capacitor Cr to
secure the regenerative current route. Similarly, Cr is necessary to enhance the reliability when there is no
capacitor near the fan power line.
To obtain Hall bias from VCC, carry out 1/2
×
VCC bias as shown in the figure. Linear driving is made through
voltage control of the coil by amplifying the Hall output. When the Hall element output is large, the startup
performance and efficiency are improved. Adjustment of the Hall element can reduce the noise further.
When the Hall bias is taken from the HB pin, constant-voltage bias is made with about 2.0V. Therefore, the Hall
element can provide the output satisfactory in temperature characteristics. Adjustment of the Hall output
amplitude is made with R1. (When VCC = 12V, the step *2 above proves advantageous for IC heat generation.)
Keep this open when not used.
When the wiring from the Hall output to IC Hall input is long, noise may be carried through the wiring.
In this case, insert the capacitor as shown in the figure.
No.A2125-4/5
LA6584JA
Internal Equivalent Circuit
VCC
1.5VRG
HB
H
IN+
OUT1
OUT2
IN-
GND
FG
Control
Circuit
Charge/discharge circuit
RD
Discharge
pulse
CT = 0.47 to 1µF
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application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental
damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual
performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical
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