User Guide for ON Semiconductor models including: LV8811G Evaluation Board, LV8811G, Evaluation Board, Board
14 feb 2022 — The LV8811G,LV8813G, and LV8814J Evaluation Board is designed to provide an easy and quick development platform for three phase single sensor BLDC motor control.11 pagine
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DocumentDocumentLV8811G/13G/14J Evaluation Board User Guide Downloaded from Arrow.com. LV8811G/13G/14J Evaluation Board User Guide NOTICE TO CUSTOMERS The LV8811G, LV8813G, and LV8814J 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 TO 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 LV8811G, LV8813G, and LV8814J Evaluation Board. WARNING The LV8811G, LV8813G, and LV8814J 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. Downloaded from Arrow.com. Page 2 LV8811G/13G/14J Evaluation Board User Guide The LV8811G,LV8813G, and LV8814J Evaluation Board is designed to provide an easy and quick development platform for three phase single sensor BLDC motor control applications using LV8811G, LV8813G, nad LV8814J. The board enables users to develop their customized system solution by utilizing various features of LV8811G, LV8813G, and LV8814J and provides real-time development capabilities. 1. Overview The LV8811G/13G/14J 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 Downloaded from Arrow.com. Page 3 LV8811G/13G/14J 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 o Factory default: configured for sensor type · Configureable minimum PWM duty cycle o Factory-default: 14% for enable (start) 8% for disable (stop) · Configurable lead angle range and its proportional constant to rotational speed o Factory-default: 15degree at the lowest FG frequency Lead angle = 0.15 × + 15 Pin name PWM FG VTH RFS GND VCC PWR RF VREG CPWM HB IN1/IN2 U/V/W Out MDS PH1/PH2 I/O IN OUT NA Monitor IN/OUT IN Floating Monitor OUT Monitor OUT IN OUT IN IN description Speed control PWM input. 20kHz 50kHz 3Vpp The higher duty cycle gives the higher rotational speed. 3Vpp pulse whose frequency is proportional to motor speed Not applicable Current feedback signal can be monitored Ground Power supply input. Typical 12V is assumed. No connection Power supply node for the power stage 3V voltage regulator output Triangle waveform of the PWM generator can be monitored Bias voltage output for a Hall sensor. 1.18V DC Hall sensor signal input Motor driver output Voltage level of MDS pin (minimum duty cycle setting) can be monitored. Voltage level of PH1 and PH2 pins (lead angle setting) can be monitored. Downloaded from Arrow.com. Page 4 LV8811G/13G/14J 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 o Through halls UO, VO and WO inside the circle, o Pins UO, WO and VO, or o Pin header CON1 pin 1, 2 and 3 for U, V and W individually (Hirose DF1-8) · Hall sensor bias o Pin HB and Pin GND o Pin header CON1 pin 4 and 5 for HB and GND individually · Hall sensor signal o Pins IN1 and IN2 o Pin 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 Hall minus Hall plus CW 12S8P 3S4P 6S8P Hall plus Hall minus CCW 9S12P CCW CW V UW H Downloaded from Arrow.com. Page 5 LV8811G/13G/14J 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 Downloaded from Arrow.com. Page 6 LV8811G/13G/14J 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) DMIND is 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. = 15 + 17 16 + + 18 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 P0 is determined by the voltage level VPH1 at PH1 pin. 0 = 60 - (-30) 2.906 - 0.141 (1 - 0.141) - 30 = 32.551 - 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) = 0.10852 when 2 = 0 = 0.15°/ The voltage levels VPH1 and VPH2 in this board are determined by resistors. 1 2 = = 3 7 + + 5 49 8 + + + + 6 150+ 9 + 6 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. Downloaded from Arrow.com. Page 7 LV8811G/13G/14J Evaluation Board User Guide APPENDIX A: schematic PWR VCC UO VO WO GND CPWM VTH D1 R23 R22 R21 R20 R19 R10 R 9 R 6 R 5 R 8 R 7 R 4 R 3 ZD1 PGND RF CM1 CM2 RFS VREG SGND R1 R2 C2 SGND R13 1 VO 2 UO 3 RF 4 RFS C1 5 VCC 6 REG 7 PH 8 PH2 9 PWM 10 FG PGND 20 NC 19 WO 18 MN1 SGND 17 CPWM 16 C5 VTH 15 MDS 14 SGND C4 SGND IN2 13 C3 HB 12 IN1 11 H SGND SGND R15 R16 R17 R18 SGND MDS (Hall sensor) R12 R11 R14 HB R27 R26 R25 R24 SGND WO VO UO C6 SGND PH2 PH1 PWM SGND FG IN1 IN2 IN2 V- WO UO (NC) IN1 V+ VO (Connector) *Notice:LV8814J do not include the exposed-PAD The hall sensor is not mounted on the board. Downloaded from Arrow.com. Page 8 LV8811G/13G/14J Evaluation Board User Guide APPENDIX B: Bill of Material Part No. D1 ZD1 CM1 CM2 C1 C2 C3 C4 C5 C6 CON1 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 Value 4.7uF 1,500pF 1uF 0.01uF 1,000pF 0_ohm DF1- 8P-2.5DSA(05) 0.1_ohm 1k_ohm 1k_ohm 47k_ohm 1k_ohm 1k_ohm 47k_ohm 1k_ohm Part No. R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R27 Value 1k_ohm 10k_ohm 4.7k_ohm 0_ohm 1k_ohm 47k_ohm 1k_ohm 1k_ohm 47k_ohm 0_ohm - MN1 - - Downloaded from Arrow.com. Page 9 LV8811G/13G/14J Evaluation Board User Guide APPENDIX C: When speed adjustment is performed by VTH. Part No. D1 ZD1 CM1 CM2 C1 C2 C3 C4 C5 C6 CON1 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 Value 4.7uF 1,500pF 1uF 0.01uF 1,000pF 390pF DF1- 8P-2.5DSA(05) 0.2_ohm (x2) 1k_ohm 1k_ohm 47k_ohm 1k_ohm 1k_ohm 47k_ohm 1k_ohm Part No. R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R27 Value 10k_ohm 4.7k_ohm 0_ohm 1k_ohm 47k_ohm 1k_ohm 0_ohm 6.8k_ohm 1.8k_ohm 12k_ohm 47k_ohm 0_ohm - MN1 3LN01S (ON SEMI) - Downloaded from Arrow.com. Page 10 LV8811G/13G/14J 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. Downloaded from Arrow.com. Page 11