LB11685AV [SANYO]
Monolithic Digital IC 3-phase sensor less Motor driver; 单片数字集成电路的3相无传感器电机驱动器
| 型号： | LB11685AV |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | Monolithic Digital IC 3-phase sensor less Motor driver |
| 文件： | 总7页 (文件大小：161K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENA1772
Monolithic Digital IC
3-phase sensor less
Motor driver
LB11685AV
Overview
The LB11685AV is a three-phase full-wave current-linear-drive motor driver IC. It adopts a sensor less control system
without the use of a Hall Effect device. For quieter operation, the LB11685AV features a current soft switching circuit and
be optimal for driving the cooling fan motors used in refrigerators, etc.
Functions
• Three-phase full-wave linear drive (Hall sensor-less method )
• Built-in three-phase output voltage control circuit
• Built-in current limiter circuit
• Built-in motor lock protection circuit
• Motor lock protection detection output
• FG output made by back EMF
• Built-in thermal shut down circuit
• Beat lock prevention circuit
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Input applied voltage
Symbol
Conditions
Ratings
Unit
V
V
V
I
max
19
+0.3
1.2
CC
max
-0.3 to V
CC
V
IN
max *1
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
A
O
Pd max
Topr
Mounted on a board *2
1.05
W
°C
°C
°C
-40 to 85
-55 to 150
150
Tstg
Junction temperature
Tj max
*1: The I is a peak value of motor-current.
O
*2: Specified board: 76.1mm × 114.3mm × 1.6mm, glass epoxy board.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer
's products or
equipment.
61610 SY 20100604-S00001 No.A1772-1/7
LB11685AV
Recommended Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Recommended Supply voltage
Operating supply voltage
V
V
12.0
CC
op
4.5 or 18.0
V
CC
Electrical Characteristics at Ta = 25°C, V
CC
= 5.0V
Ratings
typ
Parameter
Symbol
Conditions
Unit
min
max
20
Supply current
I
FC1 = FC2 = 0V
5
10
mA
V
CC
Internal regulate voltage
Output voltage (source)
Output voltage (sink)
Current limiter
VREG
3.0
3.3
1.3
3.6
VOSOUR
VOSINK
VOLIM
I
I
= 0.8A *3
= 0.8A *3
1.7
V
O
O
0.5
1.3
V
0.268
0
0.300
0.332
V
MCOM pin
VINCOM
V
- 2
V
CC
common-input voltage range
MCOM pin
ICOM+
ICOM-
MCOM = 7V
MCOM = 7V
30
30
80
μA
μA
Source current for hysteresis
MCOM pin
80
Sink current for hysteresis
MCOM pin
RTCOM
RTCOM = ICOM+ / ICOM-
0.6
1.4
0.2
hysteresis current ratio
VCO input bias current
I
f
V
V
= 2.3V
μA
VCO
VCO
CO
VCO oscillation minimum
frequency
min
= 2.1V, CX = 0.015μF
930
8.6
Hz
CO
Design target *2
= 2.7V, CX = 0.015μF
VCO oscillation maximum
frequency
f
I
max
V
kHz
VCO
CO
Design target *2
CX charge / discharge current
V
= 2.5V, CX = 1.6V
70
0.35
12
100
0.55
20
140
0.75
28
μA
CX
CO
CX hysteresis voltage
C1 (C2) charge current
C1 (C2) discharge current
ΔVCX
IC1(2)+
IC1(2)-
RTC1(2)
V
V
= 2.5V, C1(2) = 1.3V
= 2.5V, C1(2) = 1.3V
μA
μA
CO
12
20
28
CO
C1 (C2) charge / discharge
current ratio
RTC1(2) = IC1(2)+ / IC1(2)-
0.8
1.0
1.2
C1/C2 charge current ratio
RTCCHG
RTCDIS
VCW1(2)
VFGL
RTCCHG = IC1+ / IC2+
RTCDIS = IC1- / IC2-
0.8
0.8
1.0
1.0
1.0
1.3
1.2
1.2
1.6
0.5
0.5
C1/C2 discharge current ratio
C1 (C2) cramp voltage width
FG output low level voltage
RD output low level voltage
V
V
IFG = 3mA
IRD = 3mA
VRDL
v
Thermal shut down operating
temperature *1
TTSD
Junction temperature
Design target *2
150
180
15
°C
Thermal shut down hysteresis
temperature *1
ΔTTSD
Junction temperature
Design target *2
°C
*1: The thermal shut down circuit is built-in for protection from damage of IC. But its operation is out of Topr. Design thermal calculation at normal operation.
*2: Design target value and no measurement is made.
*3: The I is a peak value of motor-current.
O
No.A1772-2/7
LB11685AV
Package Dimensions
unit : mm (typ)
3315
Pd max - Ta
1.5
9.75
Specified circuit board :
114.3 76.1 1.6mm3
×
×
24
13
glass epoxy board
1.05
1.0
0.5
0
0.55
1
12
0.15
0.8
0.3
(0.48)
-40
-20
0
20
40
60
80
100
Ambient temperature, Ta --
C
SANYO : SSOP24J(275mil)
Pin Assignment
1
2
24
23
22
21
20
19
18
17
16
15
14
13
VOUT
WOUT
(NC)
UOUT
(NC)
(NC)
3
(NC)
4
PGND
MCOM
(NC)
5
RF
V
6
CC
7
SGND
REG
VOH
8
FG
RD
9
FC1
FC2
(NC)
10
11
12
V
C2
C1
CO
CX
No.A1772-3/7
LB11685AV
Block Diagram
1
24
23
22
21
20
19
18
17
16
15
14
13
2
3
Pre Drive
Distributor
4
Output Switching
Control
Reference
Voltage
5
Start Up
&
Mask Timing
6
Bandgap
+
-
Power On Reset
7
TSD
Motor Lock
Detector
8
9
Torque Ripple
Rejection &
Current Limit
FG
10
11
12
PLL
Low Voltage
Control
Soft
Switching
VCO
No.A1772-4/7
LB11685AV
Pin Function
Pin No.
Pin name
UOUT
Function
Equivalent circuit
Pin No.20
1
23
24
4
Each output pin of three phases.
WOUT
VOUT
PGND
GND pin in the output part.
This pin is connected to GND. The SGND pin is also
connected to GND
Pin No.1,23,24
20
5
RF
Pin to detect output current.
By connecting a resistor between this pin and V , the
CC
Pin No.4
output current is detected as a voltage.
The current limiter is operated by this voltage.
Motor coil midpoint input pin.
MCOM
The coil voltage waveform is detected based on this
voltage.
SGND
SGND
SGND
V
V
CC
CC
Pin No.5
SGND
SGND
7
8
9
SGND
FG
Ground pin (except the output part)
This pin is connected to GND.
The PGND pin is also connected to GND.
FG out made by back EMF pin.
It synchronizes FG out with inverted V-phase.
When don’t use this function, open this pin.
Motor lock protection detection output pin.
Output with L during rotation of motor.
Open during lock protection of motor (High-impedance).
When don’t use this function, open this pin.
PLL output pin and VCO input pin.
Pin No.8
No.9
RD
SGND
SGND
11
VCO
To stabilize PLL output, connect a capacitor between this
pin and GND.
VREG
V
CC
Pin No.11
VREG
VREG
SGND
SGND
12
CX
VCO oscillation output pin.
Operation frequency range and minimum frequency are
determined by the capacity of the capacitor connected to
this pin.
VREG
V
CC
Pin No.12
SGND
SGND
Continue to the next page.
No.A1772-5/7
LB11685AV
Continue from the former page.
Pin No.
13
Pin name
Function
Soft switching adjustment pin.
Equivalent circuit
C1
C2
14
The triangular wave from is form formed by connecting a
capacitor with this pin.
V
CC
And, the switching of three-phase output is adjusted by
the slope.
Pin No.13
14
SGND
SGND
15
FC2
Frequency characteristic correction pin 2.
To suppress the oscillation of control system closed loop
of sink-side, connect a capacitor between this pin and
GND.
VREG
V
CC
Pin No.15
SGND
SGND
16
17
18
FC1
Frequency characteristic correction pin 1.
To suppress the oscillation of control system closed loop
of source-side, connect a capacitor between this pin and
GND.
V
CC
Pin No.16
SGND
SGND
VOH
Three-phase output high level output pin.
V
V
CC
To stabilize the output voltage of this pin, connect a
capacitor between this pin and the V
pin.
CC
CC
Pin No.17
SGND
SGND
VREG
DC voltage (3.3V) output pin.
V
Connect a capacitor between this pin and GND for
stabilization.
CC
V
CC
Pin No.18
SGND
SGND
19
VCC
Pin to supply power-supply voltage.
To curb the influence of ripple and noise. The voltage
should be stabilized.
No.A1772-6/7
LB11685AV
Application Circuit Example
* Each fixed number in the following FIG, is the referential value.
FAN MOTOR
1
2
24
23
22
21
20
19
18
17
16
15
14
13
3
4
5
6
V
CC
7
8
9
10
11
12
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products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
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products described or contained herein.
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This catalog provides information as of June, 2010. Specifications and information herein are subject
to change without notice.
PS No.A1772-7/7
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