LB11685AV-W-AH [ONSEMI]
Monolithic Digital IC 3âphase Sensor Less Motor Driver;
| 型号： | LB11685AV-W-AH |
| 厂家： | 
ONSEMI |
| 描述： | Monolithic Digital IC 3âphase Sensor Less Motor Driver 电动机控制 光电二极管 |
| 文件： | 总9页 (文件大小：120K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LB11685AV
Monolithic Digital IC
3‐phase Sensor Less Motor
Driver
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.
www.onsemi.com
Functions
• Three-phase Full-wave Linear Drive (Hall Sensor-less Method)
• Built-in Current Limiter Circuit
SSOP24J
CASE 565AS
• Built-in Three-phase Output Voltage Control 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
MARKING DIAGRAM
XXXXXXXXXX
YMDDD
Specifications
MAXIMUM RATINGS (T = 25°C)
XXXXX = Specific Device Code
Y = Year
M = Month
A
Parameter
Symbol
Conditions
Ratings
Unit
Maximum Supply
Voltage
V
max
max
max
19
V
DDD = Additional Traceability Data
CC
Input Applied
Voltage
V
−0.3 to V + 0.3
V
A
IN
CC
PIN ASSIGNMENT
Maximum Output
Current
I
1.2
1.05
UOUT
(NC)
(NC)
PGND
MCOM
(NC)
1
2
3
4
5
6
7
8
9
24 VOUT
O
(Note 1)
23 WOUT
22 (NC)
21 (NC)
20 RF
Allowable Power
Dissipation
P max
Mounted on
a board (Note 2)
W
°C
°C
°C
d
19
V
Operating
Temperature
T
opr
−40 to +85
−55 to +150
150
CC
SGND
18 REG
17 VOH
16 FC1
15 FC2
14 C2
FG
RD
Storage
Temperature
T
stg
(NC) 10
11
CX 12
V
Junction
Temperature
T max
CO
j
13 C1
Stresses exceeding those listed in the Maximum Ratings table may damage the
device. If any of these limits are exceeded, device functionality should not be
assumed, damage may occur and reliability may be affected.
ORDERING INFORMATION
See detailed ordering and shipping information on page 7 of
1. The I is a peak value of motor-current.
O
2. Specified board: 76.1 mm × 114.3 mm × 1.6 mm, glass epoxy board.
this data sheet.
CAUTION: Absolute maximum ratings represent the value which cannot be
exceeded for any length of time.
CAUTION: 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.
© Semiconductor Components Industries, LLC, 2013
1
Publication Order Number:
January, 2018 − Rev. 1
LB11685AV/D
LB11685AV
RECOMMENDED OPERATING CONDITIONS (T = 25°C)
A
Symbol
Parameter
Recommended Supply Voltage
Operating Supply Voltage
Conditions
Ratings
12.0
Unit
V
V
CC
V
CC
op
4.5 to 18.0
V
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
ELECTRICAL CHARACTERISTICS (T = 25°C unless otherwise noted)
C
Symbol
Parameter
Conditions
FC1 = FC2 = 0 V
Min
5
Typ
10
Max
20
Unit
mA
V
I
Supply Current
CC
VREG
VOSOUR
VOSINK
VOLIM
Internal Regulate Voltage
Output Voltage (Source)
Output Voltage (Sink)
Current Limiter
3.0
3.3
3.6
I
I
= 0.8 A (Note 5)
1.3
1.7
V
O
= 0.8 A (Note 5)
0.5
1.3
V
O
0.268
0
0.300
0.332
V
VINCOM
MCOM Pin
V
− 2
V
CC
Common-input Voltage Range
ICOM+
ICOM−
RTCOM
MCOM Pin
Source Current for Hysteresis
MCOM = 7 V
30
30
80
mA
mA
MCOM Pin
Sink Current for Hysteresis
MCOM = 7 V
80
1.4
0.2
MCOM Pin
Hysteresis Current Ratio
RTCOM = ICOM+ / ICOM−
0.6
I
VCO Input Bias Current
V
V
= 2.3 V
mA
VCO
CO
f min
VCO
VCO Oscillation Minimum Frequency
= 2.1 V, CX = 0.015 mF
930
8.6
Hz
CO
Design target (Note 4)
f max
VCO
VCO Oscillation Maximum Frequency
V
CO
= 2.7 V, CX = 0.015 mF
kHz
Design target (Note 4)
I
CX Charge/Discharge Current
CX Hysteresis Voltage
V
= 2.5 V, CX = 1.6 V
70
0.35
12
100
0.55
20
140
0.75
28
mA
CX
CO
DVCX
IC1(2)+
IC1(2)−
C1 (C2) Charge Current
V
V
= 2.5 V, C1(2) = 1.3 V
= 2.5 V, C1(2) = 1.3 V
mA
mA
CO
C1 (C2) Discharge Current
C1 (C2) Charge/Discharge Current Ratio
C1/C2 Charge Current Ratio
C1/C2 Discharge Current Ratio
C1 (C2) Cramp Voltage Width
FG Output Low Level Voltage
RD Output Low Level Voltage
12
20
28
CO
RTC1(2)
RTCCHG
RTCDIS
VCW1(2)
VFGL
RTC1(2) = IC1(2)+ / IC1(2)−
RTCCHG = IC1+ / IC2+
RTCDIS = IC1− / IC2−
0.8
0.8
0.8
1.0
1.0
1.0
1.0
1.3
1.2
1.2
1.2
1.6
0.5
0.5
V
V
IFG = 3 mA
IRD = 3 mA
VRDL
V
TTSD
Thermal Shut Down Operating Temperature
(Note 3)
Junction temperature
Design target (Note 4)
150
180
15
°C
DTTSD
Thermal Shut Down Hysteresis Temperature
(Note 3)
Junction temperature
Design target (Note 4)
°C
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
3. The thermal shut down circuit is built-in for protection from damage of IC. But its operation is out of T . Design thermal calculation at normal
opr
operation.
4. Design target value and no measurement is made.
5. The I is a peak value of motor-current.
O
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2
LB11685AV
1.5
Specified circuit board:
3
114.3 × 76.1 × 1.6 mm
glass epoxy board
1.05
1.0
0.5
0
0.55
−40
−20
0
20
40
60
80
100
Ambient Temperature, T (5C)
A
Figure 1. Pd max − TA
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3
LB11685AV
BLOCK DIAGRAM
1
2
3
4
24
23
22
21
Pre Drive
Distributor
Output Switching
Control
Reference
Voltage
5
6
7
20
19
18
Start Up
&
Mask Timing
Bandgap
Power On Reset
TSD
Motor Lock
Detector
8
9
17
16
15
Torque Ripple
Rejection &
Current Limit
FG
10
PLL
Low Voltage
Control
11
12
14
13
Soft
Switching
VCO
Figure 2. Block Diagram
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4
LB11685AV
PIN FUNCTION
PIN FUNCTION
Pin No.
Pin Name
Function
Equivalent Circuit
1
UOUT
WOUT
VOUT
Each output pin of three phases.
Pin No. 20
23
24
4
PGND
GND pin in the output part.
Pin No. 1, 23, 24
This pin is connected to GND. The SGND pin is
also connected to GND
20
RF
Pin to detect output current.
By connecting a resistor between this pin and
Pin No. 4
V
CC
, the output current is detected as a voltage.
The current limiter is operated by this voltage.
5
MCOM
Motor coil midpoint input pin.
The coil voltage waveform is detected based on
this voltage.
SGND SGND SGND
V
CC
V
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.
Pin No. 8, 9
It synchronizes FG out with inverted V-phase.
When don’t use this function, open this pin.
SGND
SGND
RD
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.
11
VCO
PLL output pin and VCO input pin.
VREG
To stabilize PLL output, connect a capacitor
between this pin and GND.
V
CC
Pin No. 11
VREG
VREG
SGND
500 kW
SGND
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5
LB11685AV
PIN FUNCTION (continued)
Pin No.
Pin Name
Function
VCO oscillation output pin.
Equivalent Circuit
12
CX
VREG
Operation frequency range and minimum
frequency are determined by the capacity of the
capacitor connected to this pin.
V
CC
Pin No. 12
SGND
SGND
13
14
C1
C2
Soft switching adjustment pin.
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
VREG
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.
V
CC
Pin No. 15
SGND
SGND
CC
16
17
18
FC1
Frequency characteristic correction pin 1.
V
To suppress the oscillation of control system
closed loop of source-side, connect a capacitor
between this pin and GND.
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
CC
pin.
CC
SGND
Pin No. 17
SGND
VREG
DC voltage (3.3 V) output pin.
V
CC
Connect a capacitor between this pin and GND
for stabilization.
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.
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6
LB11685AV
APPLICATION CIRCUIT EXAMPLE
* Each fixed number in the following Figure 3, is the referential value.
0.1 mF
0.1 mF
0.1 mF
FAN MOTOR
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
0.1 mF
0.1 mF
V
CC
7
10 mF
8
1 mF
9
1 mF
10
11
12
0.1 mF
0.01 mF
0.01 mF
14
13
1 mF
0.015 mF
Figure 3. Application Circuit Example
ORDERING INFORMATION
Device
†
Package
Wire Bond
Shipping (Qty / Packing)
LB11685AV−TLM−H
SSOP24J (275mil)
(Pb-Free / Halogen Free)
Au-wire
2000 / Tape & Reel
LB11685AV−W−AH
SSOP24J (275mil)
(Pb-Free / Halogen Free)
Cu-wire
2000 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
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7
LB11685AV
PACKAGE DIMENSIONS
SSOP24J (275mil)
CASE 565AS
ISSUE A
SOLDERING FOOTPRINT*
(Unit: mm)
0.80
0.42
NOTE: The measurements are not to guarantee but for reference only.
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
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8
LB11685AV
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LB11685AV/D
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