The LA6583MC is a low-saturation BTL output linear driving motor driver for single-phase bipolar fan motors. It
features quite, low power, high efficiency drive that suppresses reactive current. It is optimal for use in applications
that require miniaturization and low noise, such as CPU cooling fan motors and 5 to 12V electronic game products.
Features
•
Single-phase full-wave linear drive with BTL output (gain resistance 1K-360K)
: Most appropriate for consumer appliances power supply and car audio system, namely equipment that requires
silence because this has no switching noise.
•
Low-voltage operation possible, with wide operable voltage range (2.8 to 13.8V)
•
Low saturation output (Upper + lower saturation voltage: VO sat (total) = 1.1Vtyp, IO = 200mA)
: High coil efficiency with low current drain. IC itself does not generate much heat.
•
Lock protection and auto return circuits built-in
•
Lock protection signal output (L during rotation, H at stop; open collector output)
•
FG output (rotation speed detection output: open collector output)
•
Hall bias built-in (VHB = 1.3V)
•
Heat protection circuit (Design guarantee)
: When the large current flows because of output short-circuit, raising the IC chip temperature above 180°C, the
heat protection circuit suppresses the drive current, preventing IC burn and breakdown.
•
Compact and high heat capacity package
Semiconductor Components Industries, LLC, 2013
May, 2013
31412 SY 20120127-S00001 No.A2034-1/5
LA6583MC
Specifications
Maximum Ratings
at Ta = 25°C
Parameter
Supply voltage
Output current
Output withstand voltage
RD/FG output withstand
RD/FG output current
HB output current
Allowable dissipation
Operating temperature
Storage temperature
Symbol
VCC max
IOUT max
VOUT max
VRD/FG max
IRD/FG max
IB max
Pd max
Topr
Tstg
Mounted on a specified board *1
*2
Conditions
Ratings
15
0.8
15
15
5
10
800
-30 to +100
-55 to +150
Unit
V
A
V
V
mA
mA
mW
°C
°C
*1: Mounted on a specified board: 114.3mm
×
76.1mm
×
1.6mm glass epoxy
*2: Tj = 150°C Use this IC within a range where the chip temperature does not exceed Tj = 150 C during operation.
Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time.
Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high
current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.
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.
Recommended Operating Conditions
at Ta = 25°C
Parameter
Supply voltage
Common-phase input voltage range of Hall input
Symbol
VCC
VICM
Conditions
Ratings
2.8 to 14.0
0 to VCC-1.5
Unit
V
V
Electrical Characteristics
at Ta = 25°C, VCC = 12.0V, unless especially specified.
Parameter
Circuit Current
Symbol
ICC1
ICC2
Lock detection capacitor charge current
Capacitor discharge current
Capacitor charge/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 voltage
Thermal protection circuit
ICT1
ICT2
RCT
VCT1
VCT2
VOL
VOH
VHN
VRD/FG
IRD/FGL
VHB
TSD
IO=200mA
IO=200mA
Zero peak value
(Including offset and hysteresis)
IRD/FG=5mA
VRD/FG=15V
IHB=5mA
Design target value *3
1.3
150
RCT=ICT1/ICT2
Conditions
min
During drive (CT=L)
At lock protection (CT=H)
4
2
2.0
0.15
9
1.6
0.6
Ratings
typ
6
4
2.8
0.23
12
1.7
0.7
0.2
0.9
7
0.1
1
1.5
180
max
9
6
3.5
0.30
15
1.8
0.8
0.3
1.2
15
0.2
30
1.7
210
mA
mA
μA
μA
-
V
V
V
V
mV
V
μA
V
°C
Unit
*3:
This is a design guarantee value and no measurement with an independent unit is made.
Thermal protection circuit is built in this IC for the prevention of burnout of IC and thermal destruction.
But, since the operation is outside the guarantee temperature range, thermal design must be made so that the thermal
protection circuit is not activated during normal fan operation.
No.A2034-2/5
LA6583MC
Package Dimensions
unit : mm (typ)
3420
5.0
10
1.0
Pd max -- Ta
Specified board: 114.3×76.1×1.6mm
3
glass epoxy board.
Allowable power dissipation, Pd max -- W
0.8
4.4
6.2
0.5
0.6
1
0.8 MAX
2
1.0
0.35
0.15
0.4
0.05 (1.5)
1.55
0.2
SANYO : MFP10SK(225mil)
0
-30 -20
0
20
40
60
80
100
Ambient temperature, Ta -- C
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
IN+ 1
HB 2
3
CT 4
OUT1 5
Top view
10 RD
9 FG
LA6583MC
8 VCC
7 OUT2
6 GND
No.A2034-3/5
LA6583MC
Sample Application Circuit
Di
*1
Cr
VCC
R2
*2
H
HB
RD
FG
*4
HB
LA6583MC
OUT1
*3 R1
IN+
*5
GND
OUT2
H
IN+
Elements in substrate
*1: 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.
*2: When the Hall bias is taken from the HB pin, constant-voltage bias is made with about 1.3V.
Therefore, the Hall output becomes the stable amplitude voltage satisfactory in temperature characteristics.
By inserting R2 to obtain the Hall bias from both VCC and HB, as shown in the figure, heat generation of IC can be
suppressed.
*3: In this IC, the Hall output amplitude is amplified to produce the drive waveform.
Therefore, the switching time of the current application direction is determined by the Hall output, causing change
in the characteristics of motor. If the Hall element output amplitude is large, the start-up performance and efficiency
of the IC are improved. On the other hand, if the Hall element output amplitude is small, low-noise drive is ensured.
Adjust the Hall element output amplitude by R1.
*4: Keep this open when this is not used.
*5: 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.A2034-4/5
LA6583MC
Internal Equivalent Circuit Diagram
VCC
1.5VRG
HB
H
IN-
IN+
OUT1
OUT2
GND
FG
Control
circuit
Charge discharge
RD
Discharge pulse
CT=0.47 to 1 F
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