ON Semiconductor LV8811GEVB User manual

LV8811GEVB Evaluation
Board User Guide

LV8811GEVB Evaluation Board User Guide
NOTICE TO CUSTOMERS
The LV8811 Evaluation Board
is intended to be used for ENGINEERING
DEVELOPMENT, DEMONSTRATION OR EVALUATION PURPOSES ONLY and is
not considered by ON SEMICONDUCTOR to be a finished end product fit for
general customer use. Information contained in this document regarding the device
application and the like is provided only for your convenience. ON
SEMICONDUCTOR MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY
KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED
T
O ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. The user indemnifies ON SEMICONDUCTOR fully in
respect of any claim made against ON SEMICONDUCTOR arising from the use of
the LV881 Evaluation Board.
WARNING
The LV8811 Evaluation Board is referenced to the DC supply ground and is not
earthed. Hence, it carries a risk of electric shock. Caution is required when the power
is applied to the kit. Only qualified technicians and/or engineers should handle the
kit. When the power is applied to the kit, it is absolutely must that users only probe
provided test points and do not touch any other point on the kit.
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LV8811GEVB Evaluation Board User Guide
The LV8811G/13G Evaluation Board is designed to provide an easy and quick
development platform for three phase single sensor BLDC motor control applications
using LV8811G/13G. The board enables users to develop their customized system
solution by utilizing various features of LV8811G/13G and provides real-time
development capabilities.
1. Overview
The LV8811G/13G board consists of the following I/O and components:
1. Three phases motor output
2. Hall sensor bias output
3. Hall sensor input
4. PWM input
5. FG output
6. Monitoring outputs and setting inputs (optional)
7. Configuration setting resistors
Figure 1: LV8811G Evaluation Board
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LV8811GEVB Evaluation Board User Guide
2. Features
The followings are key features of the board.
•Supports 12.0V (typ.) supply voltage
•Speed control input: PWM duty cycle
•Selectable Hall sensor type; sensor or IC
oFactory default: configured for sensor type
•Configureable minimum PWM duty cycle
oFactory-default:
14% for enable (start)
8% for disable (stop)
•Configurable lead angle range and its proportional constant to rotational speed
oFactory-default:
15degree at the lowest FG frequency
Lead angle = 0.15 ×
 +15
Pin name
I/O
description
PWM
IN
Speed control PWM input. 20kHz – 50kHz 3Vpp
The higher duty cycle gives the higher rotational speed.
FG
OUT
3Vpp pulse whose frequency is proportional to motor speed
VTH
NA
Not applicable
RFS
Monitor
Current feedback signal can be monitored
GND
IN/OUT
Ground
VCC
IN
Power supply input. Typical 12V is assumed.
PWR
Floating
No connection
RF
Monitor
Power supply node for the power stage
VREG
OUT
3V voltage regulator output
CPWM
Monitor
Triangle waveform of the PWM generator can be monitored
HB
OUT
Bias voltage output for a Hall sensor. 1.18V DC
IN1/IN2
IN
Hall sensor signal input
U/V/W Out
OUT
Motor driver output
MDS
IN
Voltage level of MDS pin (minimum duty cycle setting) can be
monitored.
PH1/PH2
IN
Voltage level of PH1 and PH2 pins (lead angle setting) can be
monitored.
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LV8811GEVB Evaluation Board User Guide
3. Quick Start
The following steps show the operation to spin a motor.
step 1. Connect motor phases and Hall sensor bias, ground and signal outputs.
The rotational direction determination is shown in Table 2. Terminals
are provided with:
•For motor phases
oThrough halls UO, VO and WO inside the circle,
oPins UO, WO and VO, or
oPin header CON1 pin 1, 2 and 3 for U, V and W individually
(Hirose DF1-8)
•Hall sensor bias
oPin HB and Pin GND
oPin header CON1 pin 4 and 5 for HB and GND individually
•Hall sensor signal
oPins IN1 and IN2
oPin header CON1 pin 6 and 7 for IN1 and IN2 individually
step 2. Connect PWM signal to PWM pin of the board.
The connection points, described in step 1 and 2, are shown in figure 2
and 3.
step 3. Set appropriate duty cycle of PWM.
step 4. Connect power supply, and turn it on.
That’s all.
Table 2. Hall sensor connection and rotational direction
Motor Type
IN1
IN2
Direction
3S2P
6S4P
12S8P
Hall minus Hall plus CW
3S4P
6S8P
9S12P
Hall plus Hall minus CCW
U
V
W
H
CWCCW
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LV8811GEVB Evaluation Board User Guide
Figure 2. Key Input/Ouput Highlighted
1. UO
2. VO
3. WO
4. HB
5. GND
6. IN1
7. IN2
8. NC
Figure 3. Pin header CON1
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LV8811GEVB Evaluation Board User Guide
4. Minimum Duty Cycle Setting
To set the minimum duty cycle, a user needs to solder chip resistors.
The minimum duty cycle for disable (stop) DMINDis determined by the voltage level VMDS
at MDS pin.
 =48 −4
2.906 −0.141 (
 −0.141)+ 4 = 15.9  + 1.758
when 
 = 0
 =8%
There is 6% of histeresisy between enable (start) and disable (stop) tarnsistions.
 = + 6
The voltage level VMDS in this board is determined by resistors.

 = 
17 +18
15 +16 +17 +18

 =3[V] in the board
5. Lead angle tuning
To tune the lead angle, a user needs to solder chip resistors.
The minimum lead angle at the lowest rotational speed P0is determined by the voltage
level VPH1 at PH1 pin.
0=60 −(−30)
2.906 −0.141 (
1−0.141)−30 =32.55 1−34.59
when 
1= 0
=15°
The lead angle P is dynamically adjusted with respect to FG frequency fFG.
=
 +0
=0.3
2.906 −0.141 (
2−0.141)= 0.1085 2
when 
2= 0
= 0.15°/
The voltage levels VPH1 and VPH2 in this board are determined by resistors.

1= 
5+6
3+4+5+6

2= 
9+10
7+8+9+10

 =3[V] in the board
*The calculating formula of the adjustment of MDS and PH1,PH2 becomes the reference level. Please
confirm real movement with a motor to use.
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LV8811GEVB Evaluation Board User Guide
APPENDIX A:schematic
IN1
REG
RF
VCC
VO
PGND
NC
UO
IN2
RFS
HB
1
2
3
4
5
6
12
11
10
9
8
7
15
14
13
16
FG
PH１
PH2
MDS
WO
19
18
17
20
PWM
SGND
CPWM
VTH
PH2
PWR
UO
VO
WO
CM1
CM2
R1
C1
ZD1
D1
C2
VREG
R2
RF
RFS
PH1
PWM
FG
VCC
C3
HB
H
IN1
IN2
MDS
C5
C4
MN1
GND
CPWM
VTH
R13
R15
R16
R17
R18
R12
R11
R23
WO
VO
UO
R25
R24
R9
R10
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
SGND
R8
R7
R6
R5
R4
R3
R14
R26
R27
C6
R19
R20
R21
R22
PGND
VO
UO
V+
V-
IN1
IN2
(NC)
(Connector)
(Hall sensor)
WO
The hall sensor is not mounted on the board.
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LV8811GEVB Evaluation Board User Guide
APPENDIX B:Bill of Material
Part No.
Value
Part No.
Value
D1
-
R11
1k_ohm
ZD1
-
R12
10k_ohm
CM1
4.7uF
R13
4.7k_ohm
CM2
-
R14
0_ohm
C1
1,500pF
R15
-
C2
1uF
R16
1k_ohm
C3
0.01uF
R17
47k_ohm
C4
1,000pF
R18
1k_ohm
C5
0_ohm
R19
-
C6
-
R20
-
CON1
DF1-8P-2.5DSA(05)
R21
1k_ohm
R1
0.1_ohm
R22
-
R2
1k_ohm
R23
47k_ohm
R3
-
R24
0_ohm
R4
1k_ohm
R25
-
R5
47k_ohm
R26
-
R6
1k_ohm
R27
-
R7
-
R8
1k_ohm
MN1
-
R9
47k_ohm
R10
1k_ohm
-
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LV8811GEVB Evaluation Board User Guide
APPENDIX C:When speed adjustment is performed by VTH.
Part No.
Value
Part No.
Value
D1
-
R11
-
ZD1
-
R12
10k_ohm
CM1
4.7uF
R13
4.7k_ohm
CM2
-
R14
0_ohm
C1
1,500pF
R15
-
C2
1uF
R16
1k_ohm
C3
0.01uF
R17
47k_ohm
C4
1,000pF
R18
1k_ohm
C5
390pF
R19
0_ohm
C6
-
R20
6.8k_ohm
CON1
DF1-8P-2.5DSA(05)
R21
1.8k_ohm
R1
0.2_ohm (x2)
R22
12k_ohm
R2
1k_ohm
R23
47k_ohm
R3
-
R24
0_ohm
R4
1k_ohm
R25
-
R5
47k_ohm
R26
-
R6
1k_ohm
R27
-
R7
-
R8
1k_ohm
MN1
3LN01S (ON SEMI)
R9
47k_ohm
R10
1k_ohm
-
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LV8811GEVB Evaluation Board User Guide
APPENDIX D:About COM1 connector.
- An exclusive connector is attached to header COM1.
- When hooks of both sides are unlock, it divides into two parts.
- Wiring is pinched by two parts.
Photograph of completion example is shown below.
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