MP6500GU-Z

MP6500 35V, 2.5A, Stepper Motor Driver DESCRIPTION FEATURES The MP6500 is a stepper motor driver with a built-in translator and current regulation. Current sensing is internal and requires no external sense resistors. High integration and a small package size make the MP6500 a spacesaving and cost-effective solution for bipolar stepper motor drives.     The MP6500 operates from a supply voltage of up to 35V and can deliver motor currents up to 2.5A (depending on PCB design and thermal conditions). The MP6500 can operate a bipolar stepper motor in full-, half-, quarter-, or eighthstep modes. Internal safety features include over-current protection (OCP), input overvoltage protection (OVP), under-voltage lockout (UVLO), and thermal shutdown. The MP6500 is available in QFN-24 (5mmx5mm) and TSSOP-28 EP packages.            Wide 4.5V to 35V Input Voltage Range Two Internal Full-Bridge Drivers Internal Current Sensing and Regulation Low On Resistance (HS: 195mΩ, LS: 170mΩ) No Control Power Supply Required Simple Logic Interface 3.3V and 5V Compatible Logic Supply Step Modes from Full-Step to Eighth-Step 2.5A Output Current Automatic Current Decay Over-Current Protection (OCP) Input Over-Voltage Protection (OVP) Thermal Shutdown and Under-Voltage Lockout (UVLO) Protection Fault Indication Output Available in QFN-24 (5mmx5mm) and Thermally Enhanced TSSOP-28 Packages 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 MP6500 100nF nFAULT CPB STEP VCP DIR µC CPA nENBL VIN MS1 VG MS2 nSLEEP VIN 1µF 220 nF AOUT1 AOUT2 ISET BOUT1 ROSC BOUT2 Step Motor GND MP6500 Rev. 1.01 12/27/2017 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 1 MP6500 – 35V, 2.5A, STEP MOTOR DRIVER W/ INTERNAL CURRENT SENSE ORDERING INFORMATION Part Number* MP6500GF* MP6500GU** Package TSSOP-28 EP QFN-24 (5mmx5mm) Top Marking See Below See Below * For Tape & Reel, add suffix –Z (e.g. MP6500GF–Z) ** For Tape & Reel, add suffix –Z (e.g. MP6500GU–Z) TOP MARKING MPS: MPS prefix YY: Year code WW: Week code MP6500: Part number LLLLLLLLL: Lot number TOP MARKING MPS: MPS prefix YY: Year code WW: Week code MP6500: Part number LLLLLLL: Lot number PACKAGE REFERENCE nSLEEP GND VIN 22 AOUT2 AOUT1 TOP VIEW 19 23 20 24 21 GND TOP VIEW CP1 1 28 CP2 VG 2 27 NC NC 3 26 NC nENBL 4 25 VCP nSLEEP 5 24 STEP GND 6 23 GND AOUT2 7 22 BOUT2 VIN 8 DIR 1 18 nENBL nFAULT 2 17 VG ISET 3 16 CP1 AGND 4 15 CP2 AOUT1 ROSC 5 14 VCP GND MS2 6 13 STEP GND BOUT2 VIN GND MS1 12 11 9 10 8 7 BOUT1 GND QFN-24 (5mmx5mm) MP6500 Rev. 1.01 12/27/2017 GND GND 21 VIN 9 20 BOUT1 10 19 GND DIR 11 18 MS1 nFAULT 12 17 NC ISET 13 16 MS2 AGND 14 15 ROSC TSSOP-28 EP www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 2 MP6500 – 35V, 2.5A, STEP MOTOR DRIVER W/ INTERNAL CURRENT SENSE ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance Supply voltage (VIN) ...................... -0.3V to 40V xOUTx voltage (VA/BOUT1/2) .............. -0.7V to 40V VCP, CPB .............................. VIN to VIN + 6.5V All other pins to AGND .................. -0.3V to 6.5V ESD rating (HBD) ........................................ 2kV (2) Continuous power dissipation (TA = +25°C) QFN ...........................................................3.5W TSSOP ......................................................3.9W Storage temperature ................ -55°C to +150°C Junction temperature ............................. +150°C Lead temperature (solder) ..................... +260°C QFN-25 (5mmx5mm) ............ 36 ........ 8 .... °C/W TSSOP-28 EP ....................... 32 ........ 6 .... °C/W Recommended Operating Conditions (3) Supply voltage (VIN) ....................... 4.5V to 35V Output current (IA,BOUT) .............................. ±2.5A Operating junction temp. (TJ). .. -40°C to +125°C MP6500 Rev. 1.01 12/27/2017 (4) 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. www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 3 MP6500 – 35V, 2.5A, STEP MOTOR DRIVER W/ INTERNAL CURRENT SENSE ELECTRICAL CHARACTERISTICS VIN = 24V, TA = +25°C, unless otherwise noted. Parameter Power Supply Input supply voltage Quiescent current Symbol Condition VIN IQ ISLEEP Min Typ Max Units 4.5 24 35 V 1.5 5 mA 1 µA 0.22 Ω VIN = 24V, nENBL = 0, nSLEEP = 1, with no load VIN = 24V, nSLEEP = 0 Internal MOSFETs RHS Output on resistance RLS Body diode forward voltage Control Logic Input logic low threshold Input logic high threshold VF 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 VIH IIN(H) VIH = 5V Logic input current IIN(L) VIL = 0.8V RPD Internal pull-down resistance Home nFAULT Outputs (Open-Drain Outputs) Output low voltage VOL IO = 5mA Output high leakage current IOH VO = 3.3V Protection Circuit VIN_RISE UVLO rising threshold Input OVP threshold VOVP Input OVP hysteresis ∆VOVP IOCP1 Sinking Over-current trip level IOCP2 Sourcing Over-current deglitch time tOCP (5) TTSD Thermal shutdown Thermal shutdown hysteresis ∆TTSD 0.195 0.17 tOFF IPEAK VISET AISET tBLANK Current trip accuracy ∆ITRIP Rosc = 200kΩ RISET = 71kΩ IISET/IOUT 0.21 1.1 V 0.8 V V µA µA kΩ 2.1 20 5 500 36 3.5 3.5 3.4 37.5 1900 6 6 1 165 0.5 1 V µA 4.5 38.5 V V mV A A µs °C 8.5 8.5 15 20 0.95 0.8 10 23 1.0 0.9 11.539 °C 26 1.05 1 13 2 RISET = 71kΩ, 71% - 100% RISET = 71kΩ, 38% - 67% RISET = 71kΩ, end tOFFof tOFF IOUTITRIP > Iat at of end TRIP In some cases, specifically high voltage and low inductance or the regulation of very small currents, the minimum on time of the PWM cycle (set by the blanking time described above) can cause the current to rise very quickly. In this case, both slow and fast decay are used (see Figure 4). MP6500 Rev. 1.01 12/27/2017 SLEEP, nENBL Operation Driving nSLEEP low puts the device into a lowpower sleep state. In this state, the gate drive charge pump is stopped, and all the internal circuits and H-bridge outputs are disabled. All inputs are ignored when nSLEEP is active low. When waking up from sleep mode, approximately 1ms of time must pass before a STEP command can be issued to allow the internal circuitry to stabilize. nSLEEP has an internal pull-down resistor. www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 13 MP6500 – 35V, 2.5A, STEP MOTOR DRIVER W/ INTERNAL CURRENT SENSE The nENBL pin is used to control the output drivers. When nENBL is low, the output Hbridge outputs are enabled, and the rising edges on STEP are recognized. When nENBL is high, the H-bridge outputs are disabled, and the STEP input is ignored. nENBL has an internal pull-down resistor. Fault Reporting The MP6500 provides an nFAULT pin, which reports if a fault condition (such as OCP, OTP, or OVP) occurs. nFAULT is an open-drain output and is driven low when a fault condition occurs. If the fault condition is removed, nFAULT is pulled high by an external pull-up resistor. Over-Current Protection (OCP) Over-current protection (OCP) circuitry limits the current through the MOSFETs by disabling the gate driver. If the over-current limit threshold is exceeded for longer than the overcurrent deglitch time, all MOSFETs in the Hbridge are disabled, and nFAULT is driven low. The driver remains disabled for 2.4ms typically, at which time it is re-enabled automatically. Over-Voltage Protection (OVP) If the input voltage on VIN is higher than the over-voltage protection (OVP) threshold, the Hbridge output is disabled, and nFAULT is driven low. This protection is released when VIN drops below 36V. Input Under-Voltage Lockout (UVLO) Protection If at any time the voltage on VIN falls below the under-voltage lockout (UVLO) threshold voltage, all circuitry in the device is disabled, and the internal logic is reset. Operation resumes when VIN rises above the UVLO threshold. Thermal Shutdown If the die temperature exceeds safe limits, all MOSFETs in the H-bridge are disabled, and nFAULT is driven low. Once the die temperature has fallen to a safe level, operation resumes automatically. Over-current conditions on both high- and lowside devices (i.e.: a short to ground, supply, or across the motor winding) result in an overcurrent shutdown. Note that OCP does not use the current sense circuitry used for PWM current control. MP6500 Rev. 1.01 12/27/2017 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 14 MP6500 – 35V, 2.5A, STEP MOTOR DRIVER W/ INTERNAL CURRENT SENSE MICROSTEPPING Table 2: Relative Current Level Sequence Eighth Step # Quarter Step # Half Step # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 1 1 MP6500 Rev. 1.01 12/27/2017 Full Step # 2 3 2 1 4 5 3 6 7 4 2 8 9 5 10 11 6 3 12 13 7 14 15 16 8 4 Phase A Current %ITripLIMIT (%) Phase B Current %ITRIP -LIMIT (%) Step Angle (°) 100.00 98.08 92.39 83.15 70.71 55.56 38.27 19.51 0.00 -19.51 -38.27 -55.56 -70.71 -83.15 -92.39 -98.08 -100.00 -98.08 -92.39 -83.15 -70.71 -55.56 -38.27 -19.51 0.00 19.51 38.27 55.56 70.71 83.15 92.39 98.08 0.00 19.51 38.27 55.56 70.71 83.15 92.39 98.08 100.00 98.08 92.39 83.15 70.71 55.56 38.27 19.51 0.00 -19.51 -38.27 -55.56 -70.71 -83.15 -92.39 -98.08 -100.00 -98.08 -92.39 -83.15 -70.71 -55.56 -38.27 -19.51 0.0 11.3 22.5 33.8 45.0 56.3 67.5 78.8 90.0 101.3 112.5 123.8 135.0 146.3 157.5 168.8 180.0 191.3 202.5 213.8 225.0 236.3 247.5 258.8 270.0 281.3 292.5 303.8 315.0 326.3 337.5 348.8 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 15 MP6500 – 35V, 2.5A, STEP MOTOR DRIVER W/ INTERNAL CURRENT SENSE MICROSTEPPING (continued) Figure 5a: Full Step (4 Step Sequences) Figure 5b: Half Step (8 Step Sequences) MP6500 Rev. 1.01 12/27/2017 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 16 MP6500 – 35V, 2.5A, STEP MOTOR DRIVER W/ INTERNAL CURRENT SENSE MICROSTEPPING (continued) Figure 5c: Quarter Step (16 Step) Figure 5d: Eighth Step (32 Step) MP6500 Rev. 1.01 12/27/2017 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 17 MP6500 – 35V, 2.5A, STEP MOTOR DRIVER W/ INTERNAL CURRENT SENSE PACKAGE INFORMATION QFN-24 (5mmx5mm) PIN 1 ID 0.30x45° TYP. PIN 1 ID MARKING PIN 1 ID INDEX AREA BOTTOM VIEW TOP VIEW SIDE VIEW NOTE: 1) ALL DIMENSIONS ARE IN MILLIMETERS. 2) EXPOSED PADDLE SIZE DOES NOT INCLUDE MOLD FLASH. 3) LEAD COPLANARITY SHALL BE 0.10 MILLIMETERS MAX. 4) DRAWING CONFIRMS TO JEDEC MO-220. 5) DRAWING IS NOT TO SCALE. RECOMMENDED LAND PATTERN MP6500 Rev. 1.01 12/27/2017 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 18 MP6500 – 35V, 2.5A, STEP MOTOR DRIVER W/ INTERNAL CURRENT SENSE PACKAGE INFORMATION (continued) PACKAGE OUTLINE DRAWING FOR 28-TSSOP w/ EXPOSED PADDLE TSSOP-28 EP MF-PO-D-0055 revision 2.0 6.00 TYP 9.60 9.80 0.65 BSC 0.40 TYP 28 15 1.60 TYP 4.30 4.50 PIN 1 ID 3.20 TYP 6.20 6.60 5.80 TYP 14 1 TOP VIEW RECOMMENDED LAND PATTERN 0.80 1.05 1.20 MAX SEATING PLANE 0.19 0.30 0.65 BSC 0.00 0.15 0.09 0.20 SEE DETAIL "A" FRONT VIEW SIDE VIEW GAUGE PLANE 0.25 BSC 5.40 5.90 0o-8o 0.45 0.75 DETAIL “A” 2.60 3.10 BOTTOM VIEW NOTE: 1) ALL DIMENSIONS ARE IN MILLIMETERS. 2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH, PROTRUSION OR GATE BURR. 3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. 4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.10 MILLIMETERS MAX. 5) DRAWING CONFORMS TO JEDEC MO-153, VARIATION AET. 6) DRAWING IS NOT TO SCALE. NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. MP6500 Rev. 1.01 12/27/2017 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 19