Quad H-Bridge Micromotor Driver

www.DataSheet4U.com Freescale Semiconductor Advance Information Document Number: MPC17550 Rev. 2.0, 7/2006 Quad H-Bridge Micromotor Driver with DC/DC Boost Converter 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. 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 currentdrain 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. Features • Low Total RDS(ON) 0.7 Ω (Typ), 1.2 Ω (Max) @ 25°C • 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 17550 H-BRIDGE MOTOR DRIVER EV SUFFIX (Pb-FREE) 98ASA10591D 36-TERMINAL VMFP ORDERING INFORMATION Device MPC17550EV/EL Temperature Range (TA) -10°C to 60°C Package 36 VMFP VM 17550 VM OE PSB VDD VDD LX VG MCU INAF INAR INBF INBR INCF INCR INDF INDR HBAF HBAR HBBF HBBR HBCF HBCR HBDF HBDR GND Figure 1. 17550 Simplified Application Diagram * This document contains certain information on a new product. Specifications and information herein are subject to change without notice. © Freescale Semiconductor, Inc., 2006. All rights reserved. INTERNAL BLOCK DIAGRAM INTERNAL BLOCK DIAGRAM GND LX VG VDD VDD PSB VDD AGND DC/DC Converter VDD VG HBA VMA HBAF INAF INAR HBAR PGND INBF INBR HBB VMB HBBF HBBR VDD OE Control Logic Gate Driver and Level Shifter PGND HBC VMC HBCF INCF INCR HBCR PGND HBD VMD INDF INDR HBDF HBDR PGND Figure 2. 17550 Simplified Internal Block Diagram 17550 2 Analog Integrated Circuit Device Data Freescale Semiconductor TERMINAL CONNECTIONS TERMINAL CONNECTIONS 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 Figure 3. 17550 Terminal Connections Table 1. Terminal Function Description Terminal 1 2 3 4 5, 9 6 8 10, 14 11 7, 12, 25, 30 13 15 16 17 18 19 20 21 22 23, 27 24 26 28, 32 Terminal Name AGND NC PSB OE VMA HBAF HBAR VMB HBBR PGND HBBF INAR INAF INBF INBR INDR INDF INCF INCR VMD HBDF HBDR VMC Formal Name Analog Ground No Connect Power Standby Output Enable Definition Analog and logic signal ground reference terminal. No connection to this terminal. Power standby mode control terminal. Logic output Enable control of H-Bridges (Low = True). Motor Drive Power Supply A Power supply voltage connection for Motor “A” (top of HBA). HBA Forward Output HBA Reverse Output Forward output of H-Bridge A. Reverse output of H-Bridge A. Motor Drive Power Supply B Power supply voltage connection for Motor “B” (top of HBB). HBB Reverse Output Power Ground HBB Forward Output Input Control HBA Reverse Reverse output of H-Bridge B. Power ground connection. Forward output of H-Bridge B. Control signal input for H-Bridge A reverse. Input Control HBA Forward Control signal input for H-Bridge A forward. Input Control HBB Forward Control signal input for H-Bridge B forward. Input Control HBB Reverse Input Control HBD Reverse Input Control HBD Forward Control signal input for H-Bridge B reverse. Control signal input for H-Bridge D reverse. Control signal input for H-Bridge D forward. Input Control HBC Forward Control signal input for H-Bridge C forward. Input Control HBC Reverse Control signal input for H-Bridge C reverse. Motor Drive Power Supply D Power supply voltage connection for Motor “D” (top of HBD). HBD Forward Output HBD Reverse Output Forward output of H-Bridge D. Reverse output of H-Bridge D. Motor Drive Power Supply C Power supply voltage connection for Motor “C” (top of HBC). 17550 Analog Integrated Circuit Device Data Freescale Semiconductor 3 TERMINAL CONNECTIONS Table 1. Terminal Function Description (continued) Terminal 29 31 33 34 35 36 Terminal Name HBCR HBCF GND LX VDD VG Formal Name HBC Reverse Output HCB Forward Output Ground Reverse Output of H-Bridge C. Forward Output of H-Bridge C. Control circuit ground terminal for DC/DC circuit ground. Definition DC/ DC Converter Switching Open-drain output of the internal DC/ DC converter circuit. Transistor Output Logic Supply Gate-Driver Circuit Power Supply Control circuit power supply terminal. Input terminal for the gate-drive voltage. 17550 4 Analog Integrated Circuit Device Data Freescale Semiconductor ELECTRICAL CONNECTIONS MAXIMUM RATINGS ELECTRICAL CONNECTIONS MAXIMUM RATINGS Table 2. 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 Motor Supply Voltage Gate-Driver Circuit Power Supply Voltage Logic Supply Voltage Signal Input Voltage (1) Symbol VM VG VDD VIN IO IOPK Value -0.5 to 9.0 VDD - 0.5 to 14 -0.5 to 6.0 -0.5 to VDD + 0.5 0.7 2.0 Unit V V V V A Driver Output Current Continuous Peak (3) ESD Voltage (4) (2) V VESD1 VESD2 TSTG TA TJ RθJA PD (7) Human Body Model Machine Model Storage Temperature Range Operating Ambient Temperature Operating Junction Temperature Thermal Resistance Power Dissipation (5) ± 2000 ± 100 -65 to 150 -10 to 60 -10 to 150 TBD 1500 260 °C °C °C °C/W mW °C (6) Soldering Temperature TSOLDER Notes 1. VIN is the voltage level applied to any input terminal. 2. 3. 4. 5. 6. 7. IO is measured as the load current flowing through the H-bridge. TA = 25°C, pulse width < 10 ms at intervals > 0.2 seconds. ESD1 testing is performed in accordance with the Human Body Model (CZAP = 100 pF, RZAP = 1500 Ω), 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. 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. 17550 Analog Integrated Circuit Device Data Freescale Semiconductor 5 ELECTRICAL CONNECTIONS STATIC ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS Table 3. 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 POWER Motor Supply Voltage Logic Supply Voltage Standby Power Supply Current (8) Symbol Min Typ Max Unit VM VDD I V I MSTBY VDDSTBY IV DD 1.6 2.5 – – – 2.5 3.0 – – 0.3 5.5 5.5 1.0 1.0 1.0 V V µA Motor Supply Standby Current Logic Supply Standby Current Logic Supply Current Gate Driver Circuit Power Supply Current (9) Standby (PSB = “L”) No Signal Operating Input Signal Operating (10) Driver Output ON Resistance (11) GATE DRIVE Gate Driver Circuit Power Supply Voltage (12) CONTROL LOGIC Logic Input Voltage (13) Logic Input (F, R, PSB, OE) High-Level Input Voltage Low-Level Input Voltage High-Level Input Current Low-Level Input Current mA µA µA mA Ω IDDC0 IDDCN IDDC RDS(ON) – – – – – 1.0 19 0.7 1.0 3.0 25 1.2 VG 10 11.5 13 V VIN VIH VIL IIH IIL 0 – VDD V VDD x 0.7 – – -1.0 – – – – – VDD x 0.3 1.0 – V V µA µA Notes 8. Applies individually to each H-Bridge. 9. Average inductor current for DC/ DC converter (connected between VDD and LX [L = 1.0 mH, C = 2.2 µF]). 10. 11. 12. 13. Full drive (input signal to all input control terminals). The total H-bridge ON resistance when VG is 11.5 V. When voltage is supplied externally without built-in DC/ DC. VIN is the voltage level applied to any input. 17550 6 Analog Integrated Circuit Device Data Freescale Semiconductor ELECTRICAL CONNECTIONS DYNAMIC ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS Table 4. 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 INPUT Pulse Input Frequency (14) Internal Oscillator Frequency OUTPUT Gate Driver Circuit Power Supply Wake-Up Time Propagation Delay Time Turn-ON Time Turn-OFF Time Notes 14. fIN is the signal frequency applied to an input terminal (F, R). Symbol Min Typ Max Unit f IN f OSC – – – 100 200 200 kHz kHz t VGON t PLH t PHL – 10 20 ms µs – – 0.2 0.2 1.0 1.0 17550 Analog Integrated Circuit Device Data Freescale Semiconductor 7 ELECTRICAL CONNECTIONS TIMING DIAGRAMS TIMING DIAGRAMS VIH 2.1 V PSB VIL 10 V FO, RO VG 50% 50% F, R, tPLH tPHL tVGON Figure 4. DC/DC Converter Output Waveform Table 5. Truth Table PSB, OE PSB H H H H H L H = High. L = Low. Z = High impedance. X = Don’t care. * = A, B, C, or D. OE L L L L H X IN*F L