LA6586FA [ONSEMI]
IC BRUSHLESS DC MOTOR CONTROLLER, Motion Control Electronics;
| 型号： | LA6586FA |
| 厂家： | 
ONSEMI |
| 描述： | IC BRUSHLESS DC MOTOR CONTROLLER, Motion Control Electronics 电动机控制 光电二极管 |
| 文件： | 总7页 (文件大小：82K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENA2043
LA6586FA
Monolithic Linear IC
BTL Driver Single-Phase Full-Wave
http://onsemi.com
Fan Motor Driver
Overview
The LA6586FA 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
• Single-phase full-wave linear drive by BTL output (gain resistance 1kΩ-360kΩ, 51dB)
• Low-voltage operation possible, with wide operating voltage range (2.2 to 14.0V)
• Low saturation output (Upper + lower saturation voltage : Vosat (total)=1.2Vtyp, I =200mA)
O
• Built-in lock protection and automatic reset circuits
• Built-in FG&RD outputs
• Thermal protection circuit
• Built-in Hall bias (VHB=1.3V)
• Extra-small package (Micro10)
Specitications
Absolute Maximum Ratings at Ta = 25 °C
Parameter
Output voltage
Symbol
Conditions
Ratings
Unit
V
V
max
15
400
0.6
15
CC
Allowable power dissipation
Output current
Pd max
Mounted on a specified board*
mW
A
I
max
OUT
Output withstand voltage
V
max
V
OUT
RD/FG output pin output
withstand voltage
VRD/FG max
15
V
RD/FG output current
IRD/FG max
IB max
Topr
10
10
mA
HB output current
mA
°C
Operating temperature
Storage temperature
-30 to +90
-55 to +150
Tstg
°C
*Mounted on a specified board : 20mm×10mm×0.8mm, paper phenol
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.
Semiconductor Components Industries, LLC, 2013
May, 2013
42512 SY 20120323-S00010 No.A2043-1/7
LA6586FA
Recommended Operating Range at Ta = 25 °C
Parameter
Supply voltage
Symbol
Conditions
Ratings
Unit
V
V
2.2 to 14.0
CC
Common-phase input voltage
range of Hall input
VICM
0 to V -1.5
CC
V
Electrical Characteristics at Ta = 25 °C, V
CC
= 12 V
Ratings
Parameter
Symbol
Conditions
Unit
min
typ
max
Circuit current
I
I
1
During drive (CT = L)
3
6
5
9
7.5
1.5
0.25
8
mA
mA
μA
μA
-
CC
2
During lock protection (CT = H)
2.5
0.9
0.10
5
CC
Lock detection capacitor charge current
Capacitor discharge current
Capacitor charge and discharge current ratio
CT charge voltage
ICT1
ICT2
RCT
1.2
0.18
6.5
1.5
0.5
0.25
0.95
3
RCT = ICT1/ICT2
VCT1
VCT2
VOL
1.3
0.3
1.7
0.7
0.45
1.2
6
V
CT discharge voltage
V
OUT output L saturation voltage
OUT output H saturation voltage
Input offset voltage
I
I
= 200 mA
= 200 mA
V
O
O
VOH
VOFST
VHN
V
mV
mV
Hall input sensitivity
Zero peak value
7
15
(including offset and hysteresis)
IHB = 5 mA
Hall bias output L voltage
RD/FG input pin L voltage
RD/FG input pin leak current
Overheat protection circuit
VHB
VFG
IFGL
TSD
1.3
1.5
0.15
1
1.7
0.3
30
V
V
IRD/FG = 5 mA
VRD/FG = 15 V
μA
°C
(*1) Designed target value
150
180
210
(*1) The standard is a design target and the measurement with a single unit is not made.
Package Dimensions
unit : mm
3428
Pd max -- Ta
0.5
0.4
0.3
0.2
3.0
Specified board :
10mm 0.8mm3
20mm
×
×
10
paper phenol
0.192
1
2
0.5
0.25
0.16
0.1
0
-30
-10
10
30
50
70
90
110
Ambient temperature, Ta --
C
Micro10
No.A2043-2/7
LA6586FA
Truth Table
IN-
IN+
CT
L
OUT1
OUT2
FG
RD
L
Mode
H
L
-
L
H
-
H
L
L
H
L
H
-
During rotation
H
OFF
OFF
H
During overheat protection
Pin Assignment
RD
IN+
FG
V
HB
IN-
LA6586FA
CC
OUT2
GND
CT
OUT1
(Top view)
Sample Application Circuit
Di
*1
Cr
*4
V
CC
R2
RD
FG
HB
HB
LA6586FA
R1
H
*3
OUT1
OUT2
*2
+
H
IN
R2
*5
GND
CT
+
IN
On board element
*1
*2
To enhance the reliability, it is necessary to insert a capacitor Cr to secure the regenerative current route.
To obtain Hall bias from V , carry out 1/2×V bias as shown in the figure. Linear driving is made through
CC CC
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.
To obtain Hall bias from the HB pin, carry out constant-voltage bias at about 1.5 V. which enables the Hall
element to generate the stable Hall output satisfactory in temperature characteristics. The Hall output amplitude
*3
is adjusted with R1. (In the case of V
= 12 V, *2 proves advantageous in terms of heat generation in IC.)
CC
*4
*5
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.A2043-3/7
LA6586FA
Internal Equivalent Circuit
V
CC
1.5VRG
HB
+
-
IN
OUT1
OUT2
H
IN
GND
FG
RD
Control
circuit
Charge discharge
Discharge pulse
Test Circuit Diagram
Input current (I
)
CC
A
V
=12V
CC
10
9
8
3
7
4
6
5
1
2
V
-=4V
V
=0 or 2V
CT
V
+=3V
IN
IN
No.A2043-4/7
LA6586FA
CT pin charge/discharge current (ICT)
V
=12V
CC
10
9
8
3
7
6
1
2
4
5
A
V
-=2V
V
+=0V
IN
IN
V
=0.2 or 2V
CT
CT pin charge/discharge voltage (VCT)
V
=12V
CC
10
9
8
3
7
6
5
1
2
4
Mesure V
st changeover og I
A
CT
CT
OUT output saturation voltage (V , V
OL OH
)
I
O
V
V
=12V
CC
10
9
8
7
6
5
1
2
3
4
I
O
V
-=1V
V
+=2V
IN
V
IN
No.A2043-5/7
LA6586FA
Input offset voltage (VOFST)
V
V
=15V
CC
10
9
2
8
3
7
4
6
1
5
VOFST=(V
-5)/360
V
OUT
V
=5V
IN
* 360 is the amplifier gain
Hall input sensitivity (VHN)
V
=12V
CC
V
10
9
8
7
6
1
2
3
4
5
Measure tje input voltage
at changeover of FG
V
+=1V
IN
Hall bias output voltage (VHB)
V
=12V
CC
10
9
2
8
3
7
6
5
1
4
V
No.A2043-6/7
LA6586FA
FG, RD input pin L voltage (VFG, RD)
V
=12V
CC
V
10
9
8
3
7
4
6
5
1
2
V
-=1V
V
+=0V
IN
IN
FG, RD input pin leakage current (IFGL, RDL)
RFG
RRD
V
=12V
CC
15V
V
10
9
2
8
3
7
4
6
5
1
V
=1.8V
V
+=1V
IN
V
-=0V
IN
CT
IFGL,RDL=(15-VFG,RD)/RRD,FG
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PS
No.A2043-7/7
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