M-S Quad Driver X12.017

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1 X.07.0.SP.E M-S Quad river X.07 M-S Quad river X.07 Features Typical Operating onfiguration - generates microsteps - glitch filters on all inputs - =.5 to 5.5V - low EMI emission System µ-processor escription The M-S Quad river X.07 is a monolithic MOS device intended to be used as an interface circuit to ease the use of the Miniature Stepper Motors M-S X5.xxx. It was specifically designed for applications in the car dashboard. The circuit allows the user to drive four motors as it contains four identical drivers on the same chip. The driver circuit converts a pulse train f(scx) into a current level sequence sent to the motor coils. This sequence is used to produce the microstepping movement of the motor. microstep corresponds to an angular rotation of / deg. of the shaft. The microstepping allows for smooth and appealing movement of a pointer if the M-S is used as pointer drive. Note that the precision of the angular position is always affected by the gear play of the motor which is ±/ deg. ontrol bus RESET f(scx) W/W f(scx) W/W f(scx) W/W f(scx) W/W Pin ssignment M-S Quad river X.07 M-S M-S M-S M-S Fig. pplications nalogue Instrumentation 8 f(scx) - car dashboard (Hybrid Instrument luster) - nautical instrumentation - aeronautical instrumentation W/W f(scx) W/W RESET Microrobotics - appliance controls - devices for medical analysis M-S X f(scx) W/W 6 W/W f(scx) 5 Fig. Schützengasse H-50 Grenchen

2 M-S Quad river X.07 X.07.0.SP.E bsolute Maximum Ratings Parameter Symbol onditions Voltage V to V SS V -0. to +6V Voltage at any pin to V V MX +0.V Voltage at any pin to V SS V MIN -0.V urrent at s - I MX ±5m Max. junction temperature T j 50 Operating temp. range T -0 to +05 Storage temp. range T STO -65 to +5 Table Stresses beyond these listed maximum ratings may cause permanent damage to the device. Exposure to conditions beyond specified operating conditions may affect device reliability or cause malfunction. Handling Procedures The device has built-in protection against high static voltages or electric fields; however, anti-static precautions must be taken as for any other MOS component. Unless otherwise specified, proper operation can only occur when all terminal voltages are kept within the supply voltage range. Unused inputs must always be tied to a defined logic voltage level unless otherwise specified. Operating onditions Parameter Symbol Test onditions Min Typ Max Units Operating temperature T Thermal impedance R th j-a IP package 60 /W SO package 80 /W Supply voltage V V Input voltage at any pin V IN V SS V V Table Load haracteristics Parameter Symbol Test onditions Min Typ Max Units oil resistance R 5 M-S X5.xxx, T = Ω R -0 M-S X5.xxx, T =-0 0 Ω R 05 M-S X5.xxx, T =05 0 Ω Phase inductance L 5 M-S X5.xxx, T =5 0. H Table Electrical haracteristics V =.5 5.5V, T = -0 05, unless otherwise specified Parameter Symbol Test onditions Min Typ Max Units Power onsumption Typical supply current I V =5V, ω=00 /s, T =5, R 5 =0Ω 76 m Worst case supply current I MX V =5.5V, RESET=V SS, 00 m T =-0, R -0 =0Ω Quiescent supply current I ll inputs at V or V SS, no 00 µ load Inputs Low level input voltage V IL V =.5 5.5V V SS.5 V High level input voltage V IH V =.5 5.5V.5 V V Input leakage I IN V IN = V SS or V -0 0 µ Table Schützengasse H-50 Grenchen

3 X.07.0.SP.E M-S Quad river X.07 Timing haracteristics V =.5 5.5V, T = -0 05, t rise and t fall 0ns, input signal swing V SS to V Parameter Symbol Test onditions Min Typ Max Units Signal pulse width t w high or low 50 ns Input frequency f(scx) river input limit. MHz Motor speed limit (ω=600 /s) 7. khz Setup time to f(scx) t s high or low 00 ns RESET release time to f(scx) t rr 00 ns Table 5 elay Timing Waveforms ny signal t w W/W f(scx) t s RESET f(scx) t rr Fig. Pin escription Unused inputs must always be tied to a defined logic voltage level unless otherwise specified Pin Number Name I/O Function IP/SOL 8 Version / 5 V Positive supply voltage V Negative supply voltage 8 / / / 7 f(scx) / / / I Stepping frequency; river / / / 7 / / / 6 W/W / / / I irection of rotation; river / / / 6 RESET I Reset for the four drivers 7 / / / 8 / / / O oil output ; river / / / 6 / / 0 / / / / O oil output ; river / / / / 5 / 8 / / / / O oil output ; river / / / 5 / / / 0 / / / O oil output ; river / / / Table 6 ircuit Protections To filter fast voltage transients, it is highly recommended to connect two 00nF ceramic capacitors to the power supply pins, one on either side and as close as possible to the I. Moreover, to protect the I against latch-up, a 5µF capacitor per motor connected should be added. Thus, for motors, typically a µf capacitor must be used, either electrolytic or tantalum. Note this capacitor can be placed close to the voltage regulator. Recommended Power Up In order to power up the circuit in a defined manner, it is recommended to keep the RESET input low while the voltage is raising. fter a delay of about ms, the RESET can be released (i.e. set high). epending on the microcontroller used, an external pull-down resistor might be required to properly set the RESET state at low during the start-up. Schützengasse H-50 Grenchen

4 M-S Quad river X.07 X.07.0.SP.E lock iagram f(scx) OIL W/W PUT RIVER RESET OIL f(scx) OIL W/W PUT RIVER OIL f(scx) OIL W/W PUT RIVER OIL f(scx) OIL W/W PUT RIVER OIL = Glitch filter & Level Shifter Fig. Schützengasse H-50 Grenchen

5 X.07.0.SP.E M-S Quad river X.07 5 Suggested pplications V aution : the 00nF ceramic capacitors must be placed as close as possible to the driver V + µf 00nF 00nF 8 5 X5.xxx µ Note: depending on the µ used, this external pull-down resistor might be required to properly set the RESET state at low during the start-up. 0k Fscx W/W* Fscx W/W* Fscx W/W* Fscx W/W* RESET* MS X X5.xxx X5.xxx X5.xxx Fig. 5 V aution : the 00nF ceramic capacitors must be placed as close as possible to the driver V + µf 00nF 00nF 8 5 X5.xxx 8 7 Fscx W/W* µ Note: depending on the µ used, this external pull-down resistor might be required to properly set the RESET state at low during the start-up k Fscx W/W* Fscx W/W* Fscx W/W* RESET* MS X X5.xxx X5.xxx Fig. 6 Schützengasse H-50 Grenchen

6 6 M-S Quad river X.07 X.07.0.SP.E Functional escription M-S Stepping Modes - The rising edge of the f(scx) input signal moves the rotor by one microstep. - The input signal "W/W" (clockwise / counterclockwise) controls the direction of rotation of the motor. Full step 80 Partial step 60 Microsteps 5 - The input signal "RESET" at low resets the output driver sequence to position. Rotor Positions Position of the rotor after a RESET oil oil Gear reduction /80 Full step = Partial step = / Microstep = / Fig. 7 Input Glitch Filter & Level Shifter ll logic inputs of the M-S Quad river are armed with a glitch filter to avoid erroneous information due to spikes and glitches on the input signal lines. ll negative or positive pulses of less than 0 ns width are ignored. minimum signal pulse width (positive or negative) of 50 ns guarantees correct function over the full temperature range. ll logic inputs also feature a level shifter, which allows for operation of the circuit at a higher supply voltage (V ) than the circuits driving the inputs. This is in order to drive the M-S motors at a higher torque level. The Output river Fig. 8 The output driver converts the pulse train of f(scx) into a current level sequence sent to the two motor coils of the M-S. This sequence of current levels per rotor revolution is used to produce the microstepping movement of the rotor. microstep is an angular rotation of / deg. of the M-S shaft or 5 deg. on the rotor shaft. partial step is an angular rotation of / deg. of the M-S shaft or 60 deg. on the rotor shaft. full step is an angular rotation of deg. of the M-S shaft or 80 deg. on the rotor shaft. The microstepping allows for smooth and appealing movement of a pointer if the M-S is used as pointer drive. It is not intended as a precise positioning. The precision of the angular position is given by the resolution of the partial step. Schützengasse H-50 Grenchen

7 X.07.0.SP.E M-S Quad river X.07 7 imensions of IP Package 8-pin plastic IP I E F G H I J Min Inches Max S mm Min Max S E F G H J Fig. imensions of SOL Package 8-pin plastic SOL E E F G H I J Min Inches Max S Min mm Max S I 0-8 J F G H Fig. 0 Ordering Information The M-S Quad river X.07 is available in the following packages: - IP 8-pin plastic package M-S Quad river X.07 - IP8 - SOL 8-pin wide plastic package M-S Quad river X.07 - SOL8 hip form on request. When ordering, please specify the complete part number and package. Schützengasse H-50 Grenchen

8 8 M-S Quad river X.07 X.07.0.SP.E Table of ontents M-S Quad river X Features... escription... pplications... Typical Operating onfiguration... Pin ssignment... bsolute Maximum Ratings... Handling Procedures... Operating onditions... Load haracteristics... Electrical haracteristics... Timing haracteristics... elay Timing Waveforms... Pin escription... ircuit Protections... Recommended Power Up... lock iagram... Suggested pplications...5 Functional escription...6 Rotor Positions...6 Input Glitch Filter & Level Shifter...6 M-S Stepping Modes...6 The Output river...6 imensions of IP Package...7 imensions of SOL Package...7 Ordering Information...7 The information and specifications given here are correct and valid to the best of our knowledge. However switec assumes no liability for damages which may arise through the incorrect use of this information or for eventual damages to existing patents or to the rights of third parties. The general purchase conditions for electrical and mechanical products of switec apply to all commercial transactions. switec reserves the right to make changes in the products contained in this document in order to improve design or performance and to supply the best possible products. switec is a trade mark of the Swatch Group Management Services G. switec 00 SR Schützengasse H-50 Grenchen

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