MP6520GV-Z

MP6520 8V to 32V, 1.5A, Stepper Motor Driver with Integrated MOSFETs DESCRIPTION FEATURES The MP6520 is a stepper motor driver with a built-in microstepping translator. The MP6520 operates from a supply voltage of up to 32V and can deliver a motor current of up to 1.5A. The MP6520 can operate a bipolar stepper motor in full-, half-, quarter-, and eighth-step modes.        The MP6520 has a fixed 3.3V reference output, which allows it to operate without a separate logic power supply.     Full protection features include over-current protection (OCP), input over-voltage protection (OVP), under-voltage lockout (UVLO), and thermal shutdown.  The MP6520 is available in a QFN-28 (4mmx5mm) package with an exposed thermal pad.   Wide 8V to 32V Input Voltage Range Two Internal Full-Bridge Drivers Low On Resistance (HS: 300mΩ; LS: 300mΩ) No Control Power Supply Required Simple Logic Interface Compatible with 3.3V and 5V Logic Full-, Half-, Quarter-, and Eighth-Step Functionality 1.5A Maximum Output Current Adjustable Mixed Decay Ratio Over-Current Protection (OCP) Input Over-Voltage Protection (OVP) Function Thermal Shutdown and Under-Voltage Lockout (UVLO) Protection Fault Indication Output Available in a QFN-28 (4mmx5mm) Package APPLICATIONS   Bipolar Stepper Motors Printers All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are registered trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION 3.3V MP6520 0.47uF VIN CPA 3P3VOUT CPB 100nF VCP nFAULT VIN nHOME 1uF VG 1uF STEP DIR MS1 MS2 µC nENBL nSLEEP AOUT1 Exposed GND PAD AOUT2 SENA SENA nRSET BOUT1 VREF BOUT2 MDS SENB ROSC 200k Ω MP6520 Rev. 1.0 10/10/2016 Motor SENB GND www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. 1 MP6520 – 32V, 1.5A, MICROSTEPPING MOTOR DRIVER W/ INTEGRATED MOSFETS ORDERING INFORMATION Part Number* MP6520GV Package QFN-28 (4mmx5mm) Top Marking See Below * For Tape & Reel, add suffix –Z (e.g. MP6520GV–Z) TOP MARKING MPS: MPS prefix Y: Year code WW: Week code MP6520: Part number LLLLLL: Lot number PACKAGE REFERENCE GND VCP CPB CPA 3P3VOUT VREF 28 27 26 25 24 23 TOP VIEW VIN 1 22 MDS AOUT1 2 21 ROSC SENA 3 20 nHOME SENA 4 19 nFAULT AOUT2 5 18 STEP BOUT2 6 17 DIR SENB 7 16 MS1 SENB 8 15 MS2 9 10 11 12 13 14 VIN nSLEEP VG nRSET nENBL EXPOSED PAD ON BACKSIDE CONNECTED TO GND BOUT1 MP6520 QFN-28 (4mmx5mm) MP6520 Rev. 1.0 10/10/2016 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. 2 MP6520 – 32V, 1.5A, MICROSTEPPING MOTOR DRIVER W/ INTEGRATED MOSFETS ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance (4) Supply voltage (VIN) ...................... -0.3V to 40V xOUTx voltage (VA/BOUT1/2) .............. -0.7V to 40V VCP, CPB .............................. VIN to VIN + 6.5V ESD rating (HBD) ........................................ 2kV SENA, SENB .......................................... 700mV All other pins to AGND (except for 3P3VOUT and VG) ........................................ -0.3V to 6.5V Continuous power dissipation (TA = +25°C) (2) ..................................................................3.1W Storage temperature ................ -55°C to +150°C Junction temperature ............................. +150°C Lead temperature (solder) ..................... +260°C QFN-28 (4mmx5mm) ............ 40 ........ 9 .... °C/W θJA θJC NOTES: 1) Exceeding these ratings may damage the device. 2) The maximum allowable power dissipation is a function of the maximum junction temperature TJ (MAX), the junction-toambient thermal resistance θJA, and the ambient temperature TA. The maximum allowable continuous power dissipation at any ambient temperature is calculated by PD (MAX) = (TJ (MAX)-TA)/θJA. Exceeding the maximum allowable power dissipation produces an excessive die temperature, causing the regulator to go into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage. 3) The device is not guaranteed to function outside of its operating conditions. 4) Measured on JESD51-7, 4-layer PCB. Recommended Operating Conditions (3) Supply voltage (VIN) .......................... 8V to 32V Output current (IA,BOUT) .............................. ±1.5A Operating junction temp. (TJ). .. -40°C to +125°C MP6520 Rev. 1.0 10/10/2016 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. 3 MP6520 – 32V, 1.5A, MICROSTEPPING MOTOR DRIVER W/ INTEGRATED MOSFETS ELECTRICAL CHARACTERISTICS VIN = 24V, TA = +25°C, unless otherwise noted. Parameter Power Supply Input supply voltage Quiescent current Voltage Regulator 3P3VOUT reference output Internal MOSFETs Symbol VIN ISLEEP VIN = 24V, nENBL = 0, nSLEEP = 1, with no load VIN = 24V, nSLEEP = 0 V3P3 IOUT = 1mA IQ RHS Output on resistance RLS Body diode forward voltage Control Logic Input logic low threshold Input logic high threshold Condition VF Min Typ Max Units 8 24 32 V 7 10 mA 5 µA 3.3 3.45 V 0.30 0.32 0.30 0.32 0.35 Ω Ω Ω Ω V 3.2 VIN = 24V, IOUT = 1A, TJ = 25°C VIN = 24V, IOUT = 1A, TJ = 85°C VIN = 24V, IOUT = 1A, TJ = 25°C VIN = 24V, IOUT = 1A, TJ = 85°C IOUT = 1.5A VIL All logic pins VIH All logic pins IIN(H) VIH = 5V Logic input current IIN(L) VIL = 0.8V RPD All logic pins Internal pull-down resistance Home, nFault Outputs (Open-Drain Outputs) VOL IO = 5mA Output low voltage Output high leakage current IOH VO = 3.3V Protection Circuit VIN_RISE UVLO rising threshold (5) VHYS UVLO hysteresis VOVP Input OVP threshold ∆VOVP Input OVP hysteresis IOCP1 Sinking Over-current trip level IOCP2 Sourcing Over-current deglitch time (5) tOCP TTSD Thermal shutdown (5) ∆TTSD Thermal shutdown hysteresis (5) Current Control tOFF Constant off time Rt = 200kΩ tBLANK Blanking time HS off to LS on, or LS off to HS Crossover dead time tDT on IREF VREF = 3.3V VREF input current VREF = 3.3V, 100% (no switch in VTRIP SENx trip voltage test mode) VREF = 3.3V, 70% - 100% VREF = 3.3V, 38% - 64% ∆ITRIP Current trip accuracy VREF = 3.3V, 19% - 30% VREF = 3.3V,