Freescale Semiconductor, Inc. MOTOROLA Document order number: MPC17550 Rev 1.0, 03/2004 SEMICONDUCTOR TECHNICAL DATA Advance Information 17550 Quad H-Bridge Micromotor Driver with DC/DC Boost Converter Freescale Semiconductor, Inc... The 17550 is a monolithic quad H-Bridge power IC ideal for portable electronic applications containing tiny bipolar stepper motors and/or brush DC-motors powered by two-to-four cell NiCd/NiMH batteries. QUAD H-BRIDGE MICROMOTOR DRIVER WITH DC/DC BOOST CONVERTER The 17550 operates from 2.5 V to 5.5 V, with independent control of each H-Bridge via parallel 3.0 V or 5.0 V logic-compatible I/O. The device features an on-board DC/DC boost converter that allows motor operation all the way down to 1.6 V (the boost converter supplies the gate-drive voltage for each of the four independent H-bridge output stages). Each output bridge has its own gate-drive and logic circuitry with built-in shoot-through current protection. The 17550 has four operating modes: Forward, Reverse, Brake, and Tri-Stated (High Impedance). The 17550 has a low total RDS(ON) of 1.2 Ω max @ 25°C. In addition, it can be set into a very low current-drain standby mode. The H-Bridge outputs can be independently PWM’ed at up to 200 kHz for speed/torque and current control. The 17550 can efficiently drive many types of micromotors owing to its low output resistance and high output slew rates. EV (Pb-FREE) SUFFIX CASE 1522-01 36-LEAD VMFP Features • Low Total RDS(ON) 0.7 Ω (Typ), 1.2 Ω (Max) @ 25°C • • • • • • • ORDERING INFORMATION Output Current 700 mA (Continuous per Output) Shoot-Through Current Protection Circuit PWM Control Input Frequency up to 200 kHz Built-In DC/DC Boost Converter Low Power Consumption Standby Mode Undervoltage Detection and Shutdown Circuit Pb-Free Packaging Designated by Suffix Code EV Device Temperature Range (TA) Package MPC17550EV/EL -10°C to 60°C 36 VMFP Simplified Application Diagram 17550 Simplified Application Diagram VM VDD 17550 VDD VM LX OE PSB MCU VG INAF INAR HBAF HBAR INBF INBR HBBF HBBR INCF INCR HBCF HBCR INDF INDR HBDF HBDR GND This document contains certain information on a new product. Specifications and information herein are subject to change without notice. © Motorola, Inc. 2004 For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. GND LX VG VDD VDD VDD DC/DC Converter PSB VDD VG HBA VMA HBAF INAF Freescale Semiconductor, Inc... AGND HBAR INAR PGND HBB INBF VMB INBR HBBF HBBR VDD OE Control Logic Gate Driver and Level Shifter PGND HBC VMC HBCF HBCR INCF PGND INCR HBD VMD INDF HBDF INDR HBDR PGND Figure 1. 17550 Simplified Internal Block Diagram 17550 2 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. Freescale Semiconductor, Inc... AGND NC PSB OE VMA HBAF PGND HBAR VMA VMB HBBR PGND HBBF VMB INAR INAF INBF INBR 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 VG VDD LX GND VMC HBCF PGND HBCR VMC VMD HBDR PGND HBDF VMD INCR INCF INDF INDR TERMINAL FUNCTION DESCRIPTION Terminal Terminal Name Formal Name 1 AGND Analog Ground 2 NC No Connect 3 PSB Power Standby Power standby mode control terminal. 4 OE Output Enable Logic output Enable control of H-Bridges (Low = True). 5, 9 VMA Motor Drive Power Supply A 6 HBAF HBA Forward Output Forward output of H-Bridge A. 8 HBAR HBA Reverse Output Reverse output of H-Bridge A. 10, 14 VMB Motor Drive Power Supply B 11 HBBR HBB Reverse Output 7, 12, 25, 30 PGND Power Ground 13 HBBF HBB Forward Output 15 INAR Input Control HBA Reverse 16 INAF Input Control HBA Forward Control signal input for H-Bridge A forward. 17 INBF Input Control HBB Forward Control signal input for H-Bridge B forward. 18 INBR Input Control HBB Reverse Control signal input for H-Bridge B reverse. 19 INDR Input Control HBD Reverse Control signal input for H-Bridge D reverse. 20 INDF Input Control HBD Forward Control signal input for H-Bridge D forward. 21 INCF Input Control HBC Forward Control signal input for H-Bridge C forward. 22 INCR Input Control HBC Reverse Control signal input for H-Bridge C reverse. 23, 27 VMD Motor Drive Power Supply D Power supply voltage connection for Motor “D” (top of HBD). 24 HBDF HBD Forward Output Forward output of H-Bridge D. 26 HBDR HBD Reverse Output Reverse output of H-Bridge D. 28, 32 VMC Motor Drive Power Supply C 29 HBCR HBC Reverse Output Reverse Output of H-Bridge C. 31 HBCF HCB Forward Output Forward Output of H-Bridge C. Definition Analog and logic signal ground reference terminal. No connection to this terminal. Power supply voltage connection for Motor “A” (top of HBA). Power supply voltage connection for Motor “B” (top of HBB). Reverse output of H-Bridge B. Power ground connection. Forward output of H-Bridge B. Control signal input for H-Bridge A reverse. Power supply voltage connection for Motor “C” (top of HBC). MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 17550 3 Freescale Semiconductor, Inc. TERMINAL FUNCTION DESCRIPTION (continued) Terminal Terminal Name Formal Name 33 GND Ground 34 LX DC/DC Converter Switching Transistor Output 35 VDD Logic Supply 36 VG Gate-Driver Circuit Power Supply Definition Control circuit ground terminal for DC/DC circuit ground. Open-drain output of the internal DC/DC converter circuit. Control circuit power supply terminal. Freescale Semiconductor, Inc... Input terminal for the gate-drive voltage. 17550 4 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. MAXIMUM RATINGS All voltages are with respect to ground unless otherwise noted. Exceeding the ratings may cause a malfunction or permanent damage to the device. Rating Symbol Value Unit Motor Supply Voltage VM -0.5 to 9.0 V Gate-Driver Circuit Power Supply Voltage VG VDD -0.5 to 14 V Logic Supply Voltage VDD -0.5 to 6.0 V Signal Input Voltage (Note 1) VIN -0.5 to VDD +0.5 V IO 0.7 IOPK 2.0 Human Body Model (Note 4) VESD1 ±2000 Machine Model (Note 5) VESD2 ±100 TSTG -65 to 150 °C Operating Ambient Temperature TA -10 to 60 °C Operating Junction Temperature TJ -10 to 150 °C RθJA TBD °C/W PD 1500 mW TSOLDER 260 °C A Driver Output Current Continuous (Note 2) Freescale Semiconductor, Inc... Peak (Note 3) V ESD Voltage Storage Temperature Range Thermal Resistance (Note 6) Power Dissipation (Note 7) Soldering Temperature (Note 8) Notes 1. VIN is the voltage level applied to any input terminal. 2. IO is measured as the load current flowing through the H-bridge. 3. TA = 25°C, pulse width < 10 ms at intervals > 0.2 seconds. 4. ESD1 testing is performed in accordance with the Human Body Model (CZAP = 100 pF, RZAP = 1500 Ω). 5. 6. 7. ESD2 testing is performed in accordance with the Machine Model (CZAP = 200 pF, RZAP = 0 Ω). Mounted on 37 x 50 Cu area (1.6 mm FR-4 PCB). Maximum at TA = 25°C. 8. Soldering temperature limit is for 10 seconds maximum duration. Not designed for immersion soldering. Exceeding these limits may cause malfunction or permanent damage to the device. MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 17550 5 Freescale Semiconductor, Inc. STATIC ELECTRICAL CHARACTERISTICS Characteristics noted under conditions TA = 25°C, VDD = 3.0 V, VM = 2.5 V, GND = 0 V, fIN = 176 kHz unless otherwise noted. Typical values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted. Characteristic Symbol Min Typ Max Unit Motor Supply Voltage VM 1.6 2.5 5.5 V Logic Supply Voltage VDD 2.5 3.0 5.5 V – – 1.0 – – 1.0 – 0.3 1.0 mA µA POWER Standby Power Supply Current (Note 9) I Motor Supply Standby Current I Freescale Semiconductor, Inc... Logic Supply Standby Current VMSTBY VDDSTBY IV Logic Supply Current DD µA Gate Driver Circuit Power Supply Current (Note 10) Standby (PSB = “L”) IDDC0 – – 1.0 No Signal Operating IDDCN – 1.0 3.0 µA Input Signal Operating (Note 11) IDDC – 19 25 mA Driver Output ON Resistance (Note 12) RDS(ON) – 0.7 1.2 Ω VG 10 11.5 13 V VIN 0 – VDD V High-Level Input Voltage VIH VDD x 0.7 – – V Low-Level Input Voltage VIL – – VDD x 0.3 V High-Level Input Current IIH – – 1.0 µA -1.0 – – µA GATE DRIVE Gate Driver Circuit Power Supply Voltage (Note 13) CONTROL LOGIC Logic Input Voltage (Note 14) Logic Input (F, R, PSB, OE) IIL Low-Level Input Current Notes 9. Applies individually to each H-Bridge. 10. Average inductor current for DC/DC converter (connected between VDD and LX [L = 1.0 mH, C = 2.2 µF]). 11. 12. Full drive (input signal to all input terminals). The total H-bridge ON resistance when VG is 11.5 V. 13. 14. When voltage is supplied externally without built-in DC/DC. VIN is the voltage level applied to any input. 17550 6 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. DYNAMIC ELECTRICAL CHARACTERISTICS Characteristics noted under conditions TA = 25°C, VDD = 3.0 V, VM = 2.5 V, GND = 0 V, fIN = 176 kHz unless otherwise noted. Typical values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted. Characteristic Symbol Min Typ Max Unit f IN – – 200 kHz f OSC – 100 200 kHz t VGON – 10 20 ms Turn-ON Time t PLH – 0.2 1.0 Turn-OFF Time t PHL – 0.2 1.0 INPUT Pulse Input Frequency (Note 15) Internal Oscillator Frequency OUTPUT Gate Driver Circuit Power Supply Wake-Up Time µs Freescale Semiconductor, Inc... Propagation Delay Time Notes 15. fIN is the signal frequency applied to an input terminal (F, R). MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 17550 7 Freescale Semiconductor, Inc. Timing Diagrams 2.1 V VIH F, R, PSB VIL 10 V 50% FO, RO VG tPLH tVGON Figure 2. DC/DC Converter Output Waveform Freescale Semiconductor, Inc... 50% tPHL Figure 3. H-Bridge Output Waveform Table 1. Truth Table PSB, OE INA/INB/INC/IND HBA/HBB/HBC/HBC PSB OE IN*F IN*R HB*F HB*R H L L L L L H L L H L H H L H L H L H L H H Z Z H H X X Z Z L X X X Z Z H = High. L = Low. Z = High impedance. X = Don’t care. * = A, B, C, or D. 17550 8 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. SYSTEM/APPLICATION INFORMATION INTRODUCTION The 17550 is a monolithic quad H-Bridge ideal for portable electronic applications containing multiple bipolar step motors and/or brush DC motors. The device features an on-board DC/ DC converter to provide gate-drive voltages, as well as levelshifting circuitry. The control logic translates the input signals to the gate-driver circuitry while providing cross-conduction suppression. The 17550 has four operating modes: Forward, Reverse, Brake, and Tri-Stated (High Impedance). The MOSFETs comprising the output bridge have a total source+sink RDS(ON) ≤ 1.2 Ω. The 17550 can simultaneously drive four brush DC motors or two bipolar step motors. The drivers are designed to be PWM’ed at frequencies up to 200 kHz. Freescale Semiconductor, Inc... FUNCTIONAL TERMINAL DESCRIPTION VDD VM The VDD terminal carries the logic supply voltage and current into the logic sections of the IC. VDD has an undervoltage threshold. If the supply voltage drops below the undervoltage threshold, the output power stage switches to a tri-state condition. When the supply voltage returns to a level that is above the threshold, the power stage automatically resumes normal operation according to the established condition of the input terminals. The VM terminals carry the main supply voltage and current into the power sections of the 17550. This supply then becomes controlled and/or modulated by the 17550 as it delivers the power to the loads attached between the H-Bridge output terminals. All VM terminals must be connected together on the printed circuit board. INAF, INAR, INBF, INBR, INCF, INCR, INDF, INDR These logic input terminals control each H-Bridge output; e.g., IN*F logic HIGH = HB*F HIGH; likewise, IN*R logic HIGH = HB*R HIGH. However, if both “F” and “R” inputs are taken HIGH, the associated bridge’s outputs are both tri-stated (refer to Table 1, Truth Table, page 8). OE OE terminal is a LOW = TRUE enable input. When OE = HIGH, all H-Bridge outputs are tri-stated (high impedance) regardless of logic inputs states. LX The LX terminal is the open-drain output of the internal DC/ DC converter circuit. It is the junction for the external inductor and the anode of the external Schottky diode. VG The VG terminal is the input terminal for the gate-drive voltage. It can be supplied from the built-in DC/DC converter or from an external source. Ground Terminals All ground terminals must be tied together on the PCB. HBAF, HBAR, HBBF, HBBR, HBCF, HBCR, HBDF, HBDR These terminals provide connection to the outputs of each of the internal H-Bridges (see Figure 1, 17550 Simplified Internal Block Diagram, page 2). MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 17550 9 Freescale Semiconductor, Inc. APPLICATIONS Introduction To attain high-efficiency operation, the rectifier should be a Schottky diode, and the filter capacitor should be of the low ESR type. Attention should be paid to proper switch mode power supply PCB layout practice. Some experimentation may be required to determine optimal external component values. The recommended starting values are L = 1.0 mH, C = 2.2 µF. The 17550's built-in DC/DC converter must be connected to an external inductor, rectifier, and filter capacitor. This step-up converter generates the gate-drive voltage, VG, required by the internal gate driver circuits. Although there is some latitude in selecting the values for the external component, care must be taken that VG does not exceed 14 V. Additionally, too low an inductance will cause large instantaneous switching currents, which may damage the device. The DC/DC converter includes its own internal oscillator and does not require an external clock input. Typical Application Freescale Semiconductor, Inc... Important Do not use an inductance lower than 330 µH. VM = 2.5 V 47 µF A typical application schematic is shown in Figure 4. VDD = 3.0 V 17550 VM VDD 10 µF L = 1.0 mH LX OE PSB VG 2.2 µF INAF INAR HBAF HBAR N S MCU INBF HBBF INBR HBBR INCF HBCF INCR HBCR N S HBDF INDF INDR HBDR GND Figure 4. Typical 17550 Application 17550 10 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. CEMF Snubbing Techniques Care must be taken to protect the IC from potentially damaging CEMF spikes induced when commutating currents in inductive loads. Typical practice is to provide snubbing of voltage transients by placing a capacitor or zener at the motor supply voltage terminal (VM) (see Figure 5). 5.0 V 5.0 V 175XX VDD VM C1L C1L C1H C1H C2L C2H Freescale Semiconductor, Inc... 5.0 V 5.0 V 175XX VDD VM CRES OUT OUT GND C2L C2H CRES OUT OUT GND Figure 5. CEMF Snubbing Techniques MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 17550 11 Freescale Semiconductor, Inc. PACKAGE DIMENSIONS EV (Pb-FREE) SUFFIX 36-LEAD VMFP PLASTIC PACKAGE CASE 1522-01 ISSUE O 1.90 1.70 1.20±0.10 5 36 19 B 1.35±0.10 Freescale Semiconductor, Inc... NPJ IA 5.40 5.20 (JPN)/CAVITY #(A1) BOTTOM SIDE 3 4 1.20±0.10 4X R0.40±0.10 18 1 1.30±0.10 VIEW Y 12.70 12.50 3 VIEW K 4 A 12˚±1˚ 2X R0.15±0.10 12˚±1˚ 36X 0.10 C 0.25 1.90 1.70 GUAGE PLANE SEATING PLANE 14˚±1˚ 2X R0.15±0.10 0.20 0.00 C 0.27 36X 0.37 0.13 M 14˚±1˚ 0˚- 8˚ 0.60±0.20 C A B 0.69±0.20 4 0.37 0.27 0.13 M R VIEW K VIEW ROTATED 90˚ CW C A B R BASE METAL 0.325 0.27 (0.20) 0.15 34X 0.65 VIEW Y PLATING (0.30) NOTES: 1. ALL DIMENSIONS ARE IN MILLIMETERS. 2. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 3. DIMENSIONS DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.5 MM PER END. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. INTERLEAD FLASH OR PROTRUSION. INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.5 MM PER SIDE. 4. DIMENSIONS ARE DETERMINED AT THE OUTMOST EXTREMES OF THE PLASTIC BODY EXCLUSIVE OF MOLD FLASH, TIE BAR BURRS, GATE BURRS AND INTERLEAD FLASH, BUT INCLUDING ANY MISMATCH BETWEEN THE TOP AND BOTTOM OF THE PLASTIC BODY. 5. TERMINAL NUMBERS ARE SHOWN FOR REFERNCE ONLY. SECTION R-R 17550 12 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. Freescale Semiconductor, Inc... NOTES MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 17550 13 Freescale Semiconductor, Inc. Freescale Semiconductor, Inc... NOTES 17550 14 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com Freescale Semiconductor, Inc. Freescale Semiconductor, Inc... NOTES MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA For More Information On This Product, Go to: www.freescale.com 17550 15 Freescale Semiconductor, Inc... Freescale Semiconductor, Inc. Information in this document is provided solely to enable system and software implementers to use Motorola products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document. Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. 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