MCP8063 3-Phase Brushless Sinusoidal Sensorless Motor Driver Features Description • Automotive AEC-Q100 Qualified, PPAP available upon request • Position Sensorless BLDC Drivers (no Hall Sensor required) • 180° Sinusoidal Drive for High Efficiency and Low Acoustic Noise • Supports 2V to 14V Power Supplies • Speed Control through Power Supply Modulation (PSM) and/or Pulse-Width Modulation (PWM) • Built-In Frequency Generator (FG output signal) • Built-In Lock-Up Protection and Automatic Recovery Circuit (external capacitor not necessary) • Built-In Overcurrent Limitation (1.5A) • Built-In Overvoltage Protection • Built-In Thermal Shutdown Protection • Thermally Enhanced 8-Lead 4 mm x 4 mm DFN Package with Exposed Pad • 23 kHz PWM Output Frequency • No External Tuning Required • Optimized for Fan Cooling Systems The MCP8063 device is a highly integrated 3-phase, full-wave sensorless driver for brushless motors. It features a 180° sinusoidal drive, high torque output, and silent drive. Its integrated features and the wide power supply range (2V to 14V) make the MCP8063 an ideal candidate for a broad range of motor characteristics, requiring no external tuning. Speed control can be achieved through either power supply modulation (PSM) or pulse-width modulation (PWM). Typical Applications The MCP8063 is available in a compact thermally-enhanced 8-lead 4 mm x 4 mm DFN package with exposed pad. • Silent Notebook CPU/GPU Cooling Fans • Air Ventilation System • 12V 3-Phase BLDC Motors Due to the compact packaging and minimum bill of materials (power transistors integrated, no Hall sensor, no external tuning), the MCP8063 is optimized for fan applications that require high efficiency and low acoustic noise at competitive costs. Frequency generator output enables precision speed control in closed-loop applications. The MCP8063 driver includes a Lock-Up Protection mode, which turns off the output current when the motor is under lock condition, and an automatic recovery that enables the fan to restart when the lock condition is removed. Features such as motor overcurrent limitation and thermal shutdown protection improve motor system reliability without additional efforts from design engineers. Package Types MCP8063 4x4 DFN* FG 1 VBIAS 2 OUT1 3 OUT2 4 8 PWM EP 9 7 VDD 6 OUT3 5 GND Top View * Includes Exposed Thermal Pad (EP); see Table 3-1. 2014 Microchip Technology Inc. DS20005257B-page 1 MCP8063 Functional Block Diagram VDD VREF Motor Phase Detection Circuit VBIAS Regulator Overcurrent Limitation VDD MCU VBIAS PWM Output Drive Circuit FG OUT3 OUT2 OUT1 PWM Input GND Thermal Protection DS20005257B-page 2 2014 Microchip Technology Inc. MCP8063 Typical Application – Fan Motor Driver Using the MCP8063 PWM Input (0.02-100 kHz) VLOGIC (Controller Side) R1 PWM 8 2 VBIAS C1 3 OUT1 MCP8063 1 FG VDD VDD 7 C2 OUT3 6 4 OUT2 EP GND 5 9 Recommended External Components for Typical Application Element Type/Value C1 ≥1 µF Connect as close as possible to IC input pins C2 ≥10 µF Connect as close as possible to IC input pins R1 ≥10 kΩ Connect to Vlogic on controller side 2014 Microchip Technology Inc. Comment DS20005257B-page 3 MCP8063 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings† Power Supply Voltage (VDD_MAX) .................... -0.7 to +16.0V Maximum OUT1,2,3 Voltage (VOUT_MAX) ........ -0.7 to +16.0V Maximum Output Current(1) (IOUT_MAX) ........... -1.7A to +1.7A FG Maximum Output Voltage (VFG_MAX) ......... -0.7 to +16.0V FG Maximum Output Current (IFG_MAX) .....................5.0 mA VBIAS Maximum Voltage (VBIAS_MAX) ................ -0.7 to +4.0V PWM Maximum Voltage (VPWM_MAX) ................ -0.7 to +4.0V Maximum Junction Temperature (TJ) .......................... +150°C HBM ESD protection on all pins....................................... 4 kV † Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. Note 1: OUT1, OUT2, OUT3 (Continuous, 100% duty cycle). ELECTRICAL CHARACTERISTICS Electrical Specifications: Unless otherwise specified, all limits are established for VDD = 12.0V, Temperature = +25°C. Parameters Sym. Min. Typ. Max. Units Power Supply Voltage VDD 2 — 14 V Power Supply Current IVDD — — 10 5 — — mA mA Conditions Rotation Mode Lock-Protection Mode OUT1/2/3 High Resistance RON(H) — 0.6 1 Ω IOUT = 0.5A, VDD = 3.3V to 14V (Note 1) OUT1/2/3 Low Resistance RON(L) — 0.6 1 Ω IOUT = -0.5A, VDD = 3.3V to 14V (Note 1) OUT1/2/3 Total Resistance RON(H+L) — 1.2 2 Ω IOUT = 0.5A, VDD = 3.3V to 14V (Note 1) OUT1/2/3 Maximum Current Limitation IOUT_LIM 1.4 1.5 1.6 A Note 1 VBIAS Output Voltage VBIAS — — 3 — — V VDD = 3.3V to 14V V VDD < 3.3V PWM Input Frequency fPWM 0.02 PWM Input H Level VPWM_H 0.8 × VBIAS VDD – 0.2 — 100 kHz — 3.6 V PWM Input L Level VPWM_L 0 — 0.2 × VBIAS V PWM Internal Pull-Up Current IPWM_L 17 34 — µA PWM = GND, VDD = 3.3V to 14V 8 17 — µA PWM = GND, VDD < 3.3V PWM Output Frequency fPWM_O — 23 — kHz FG Output Pin Low Level Voltage VOL_FG — — 0.25 V IFG = -1 mA FG Output Pin Leakage Current ILH_FG — — 10 µA VFG = 14V Lock Protection Operating Time TRUN — 0.5 — s Lock Protection Waiting Time TWAIT 4.0 4.5 5.0 s Note 1: Minimum and maximum parameter is not production tested and is specified by design and validation. Reference PCB, according to JEDEC standard EIA/JESD 51-9. DS20005257B-page 4 2014 Microchip Technology Inc. MCP8063 ELECTRICAL CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise specified, all limits are established for VDD = 12.0V, Temperature = +25°C. Parameters Sym. Min. Typ. Max. Units Thermal Shutdown TSD — 170 — °C Thermal Shutdown Hysteresis TSD_HYS — 25 — °C Input Over Voltage VOV — 18.5 — V Note 1: Conditions Minimum and maximum parameter is not production tested and is specified by design and validation. Reference PCB, according to JEDEC standard EIA/JESD 51-9. TEMPERATURE SPECIFICATIONS Electrical Specifications: Unless otherwise specified, all limits are established for VDD = 12.0V, TA = +25°C. Parameters Sym. Min. Typ. Max. Units Operating Temperature TOPR -40 — +125 °C Storage Temperature Range TSTG -55 — +150 °C JA — 48 — °C/W JC — 7 — °C/W Conditions Temperature Ranges Package Thermal Resistances Thermal Resistance, 8LD 4x4 DFN Note 1: Minimum and maximum parameter is not production tested and is specified by design and validation. Derating applies for ambient temperatures outside the specified operating range (refer to Figure 1-1). 2.5 DFN-8 PDMAX (W) 2 1.5 1 0.5 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 0 TA (°C) FIGURE 1-1: Allowable Power Dissipation (PD_MAX) as a Function of Ambient Temperature (TA). 2014 Microchip Technology Inc. DS20005257B-page 5 MCP8063 2.0 TYPICAL PERFORMANCE CURVES The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range. Note: 75 16 14 70 12 10 VDD = 14V 8 6 VDD = 2V 4 2 PWM VIH (% of VBIAS) Oscillator Frequency Deviation (%) Note: Unless otherwise indicated, TA = +25°C, VDD = 14V, OUT1, 2, 3 and PWM open. VDD = 2V 60 55 0 VDD = 14V -2 -40 -25 -10 5 50 20 35 50 65 80 95 110 125 Temperature (C°) FIGURE 2-1: Oscillator Frequency Deviation vs. Temperature. -40 -25 -10 5 FIGURE 2-4: Temperature. 20 35 50 65 80 95 110 125 Temperature (C°) Input (PWM) VIH vs. 1 3.5 VDD = 14V 0.9 3 0.8 VDD = 3.3V 2 VDD = 2V 1.5 RON(H) 0.7 RON (ȍ) 2.5 VBIAS (V) 65 0.6 0.5 RON(L) 0.4 0.3 1 0.2 0.5 0.1 0 0 -40 -25 -10 5 20 35 50 65 80 Temperature (C°) -40 -25 -10 95 110 125 FIGURE 2-2: Internal Regulated Voltage (VBIAS) vs. Temperature. 5 FIGURE 2-5: Output RON Resistance vs. Temperature (VDD = 3.3V). 50 8.2 VDD = 14V VDD = 14V 40 VDD = 2V 35 30 IVDD Current (mA) 8 45 PWM VIL (% of VBIAS) 20 35 50 65 80 95 110 125 Temperature (C°) 7.8 7.6 7.4 7.2 7 6.8 6.6 25 -40 -25 -10 5 FIGURE 2-3: Temperature. DS20005257B-page 6 20 35 50 65 80 95 110 125 Temperature (C°) Input (PWM) VIL vs. -40 -25 -10 FIGURE 2-6: Temperature. 5 20 35 50 65 80 95 110 125 Temperature (C°) Supply Current vs. 2014 Microchip Technology Inc. MCP8063 Note: Unless otherwise indicated, TA = +25°C, VDD = 14V, OUT1, 2, 3 and PWM open. 0.12 FG Pin Drive (V) 0.11 0.1 VDD = 2V 0.09 0.08 0.07 VDD = 3.3V 0.06 0.05 0.04 -40 -25 -10 5 20 35 50 65 80 95 110 125 Temperature (C°) FIGURE 2-7: FG Output Pin Low Level Voltage (IFG = -1 mA). FIGURE 2-10: Loop. Typical Outputs on Closed FIGURE 2-11: Typical Rotor Lock Situation. PWM Pull-Up Current (µA) 0 -5 -10 VDD = 2V -15 -20 -25 -30 VDD = 14V -35 -40 -40 -25 -10 5 20 35 50 65 80 95 110 125 Temperature (C°) FIGURE 2-8: Temperature. PWM Pull-Up Current vs. FIGURE 2-9: Typical Output on Start-Up. 2014 Microchip Technology Inc. DS20005257B-page 7 MCP8063 3.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 3-1. TABLE 3-1: MCP8063 PIN FUNCTION TABLE MCP8063 Symbol Type 1 FG O Motor Speed Indication Output Pin 2 VBIAS P Internal Regulator Output Pin (for decoupling only) 3 OUT1 O Single-Phase Coil Output Pin 4 OUT2 O Single-Phase Coil Output Pin 4x4 DFN Description 5 GND P Negative Voltage Supply Pin (Ground) 6 OUT3 O Single-Phase Coil Output Pin 7 VDD P Positive Voltage Supply for Motor Driver Pin 8 PWM I PWM Input Signal for Speed Control Pin 9 EP P Exposed pad is used for thermal dissipation. Connect to GND. Legend: I = Input; O = Output; P = Power DS20005257B-page 8 2014 Microchip Technology Inc. MCP8063 4.0 FUNCTIONAL DESCRIPTION The MCP8063 device generates a full-wave signal to drive a 3-phase sensorless BLDC motor. High efficiency and low power consumption are achieved due to DMOS transistors and synchronous rectification drive type. The current carrying order of the output is as follows: OUT1 OUT2 OUT3. 4.1 Speed Control The rotational speed of the motor can be controlled either through the PWM digital input signal or by varying the power supply (VDD). When the PWM signal is “High” (or left open), the motor rotates at full speed. When the PWM signal is “Low”, the motor is stopped (and the driver outputs are set to high impedance). By changing the PWM duty cycle, the speed can be adjusted. Notice that the PWM frequency has no special meaning for the motor speed and is asynchronous with the activation of the output transistors. Thus, the user has maximum freedom to choose the PWM system frequency within a wide range (from 20 Hz to 100 kHz), while the output transistor activation always occurs at a fixed rate, which is outside the range of audible frequencies. The typical output frequency of MCP8063 is 23 kHz. 4.2 Frequency Generator Function The Frequency Generator output is a “Hall-sensor equivalent” digital output, giving information to an external controller about the speed and phase of the motor. The FG pin is an open-drain output, connecting to a logical voltage level through an external pull-up resistor. When a lock (or out-of-sync) situation is detected by the driver, this output is set to high impedance until the motor is restarted. Leave the pin open when not used. The FG signal can be used to compute the motor speed in rotations per minute (RPM). Typically, for a four-pole BLDC fan (4P/6S), the speed in RPMs is 30 x FG frequency (Hz). 4.3 Lock-Up Protection and Automatic Restart If the motor is stopped (blocked) or if it loses synchronization with the driver, a lock-up protection circuit detects this situation and ties the outputs to GND in order to dissipate the remaining energy from the rotor with a minimum of self heating. After a “waiting time” (TWAIT), the lock-up protection is released and normal operation resumes for a given time (TRUN). In case the motor is still blocked, a new period of waiting time is started. TWAIT and TRUN timings are fixed internally, so that no external capacitor is needed. 4.4 Overcurrent Limitation The motor peak current is limited by the driver to a fixed value (defined internally), thus limiting the maximum power dissipation in the coils. 4.5 Thermal Shutdown The MCP8063 device has a thermal protection function which detects when the die temperature exceeds TSD = +170°C. When this temperature is reached, the circuit enters Thermal Shutdown mode and the outputs OUT1, OUT2 and OUT3 are tied to GND in order to dissipate the remaining energy from the rotor with a minimum of self-heating. Once the junction temperature (TSD) has dropped below +145°C, the normal operation resumes (the thermal detection circuit has +25°C hysteresis function). Thermal Shutdown Normal operation TSD +145°C EQUATION 1-1: FG 720 ----------------------- = Rotor speed RPM P S Where: P = Total number of poles in the motor S = Total number of slots in the motor FIGURE 4-1: Hysteresis. 4.6 +170°C Thermal Protection Internal Voltage Regulator VBIAS voltage is generated internally and is used to supply internal logical blocks. The VBIAS pin is used to connect an external decoupling capacitor (1 µF or higher). Notice that this pin is for IC internal use and is not designed to supply DC current to external blocks. 4.7 Overvoltage Shutdown The MCP8063 device has an overvoltage protection function which detects when the VDD voltage exceeds VOV = +18.5V. When this temperature is reached, the circuit enters Thermal Shutdown mode, and outputs OUT1, OUT2 and OUT3 are disabled (high impedance). 2014 Microchip Technology Inc. DS20005257B-page 9 MCP8063 5.0 PACKAGING INFORMATION 5.1 Package Marking Information 8-Lead DFN (4x4x0.9 mm) XXXXXX XXXXXX YYWW NNN PIN 1 Legend: XX...X Y YY WW NNN e3 * Note: DS20005257B-page 10 Example 8063 300EMD 1442 256 PIN 1 Customer-specific information Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week ‘01’) Alphanumeric traceability code Pb-free JEDEC® designator for Matte Tin (Sn) This package is Pb-free. The Pb-free JEDEC designator ( e3 ) can be found on the outer packaging for this package. In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. 2014 Microchip Technology Inc. MCP8063 8-Lead Plastic Dual Flat, No Lead Package (MD) – 4x4x0.9 mm Body [DFN] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging Microchip Technology Drawing C04-131E Sheet 1 of 2 2014 Microchip Technology Inc. DS20005257B-page 11 MCP8063 8-Lead Plastic Dual Flat, No Lead Package (MD) – 4x4x0.9 mm Body [DFN] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging Microchip Technology Drawing C04-131E Sheet 2 of 2 DS20005257B-page 12 2014 Microchip Technology Inc. MCP8063 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging 2014 Microchip Technology Inc. DS20005257B-page 13 MCP8063 NOTES: DS20005257B-page 14 2014 Microchip Technology Inc. MCP8063 APPENDIX A: REVISION HISTORY Revision B (November 2014) The following is the list of modifications: 1. 2. 3. 4. Changed FG Maximum Output Voltage values under Absolute Maximum Ratings† section Changed Power Supply Voltage value under Absolute Maximum Ratings† section. Added Input Overvoltage Value in Electrical Characteristics table. Minor typographical corrections. Revision A (February 2014) • Original Release of this Document. 2014 Microchip Technology Inc. DS20005257B-page 15 MCP8063 NOTES: DS20005257B-page 16 2014 Microchip Technology Inc. MCP8063 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. X -X Device Tube/Tape and Reel Temperature Range /XX Package Device: MCP8063: MCP8063T: 3-Phase BLDC Sinusoidal Sensorless Motor Driver 3-Phase BLDC Sinusoidal Sensorless Motor Driver (Tape and Reel) Temperature Range: E = -40°C to +125°C (Extended) Package: MD = 8-Lead Plastic Dual Flat, No Lead – 4x4x0.9 mm Body (DFN) 2014 Microchip Technology Inc. Examples: a) b) MCP8063-E/MD: Extended temperature, 8LD 4x4 DFN package MCP8063T-E/MD: Extended temperature, 8LD 4x4 DFN package, Tape and Reel DS20005257B-page 17 MCP8063 NOTES: DS20005257B-page 18 2014 Microchip Technology Inc. Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. • Microchip is willing to work with the customer who is concerned about the integrity of their code. • Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. 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