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GS-D200S Dataheets PDF



Part Number GS-D200S
Manufacturers STMicroelectronics
Logo STMicroelectronics
Description 2/2.5A BIPOLAR STEPPER MOTOR DRIVE MODULES
Datasheet GS-D200S DatasheetGS-D200S Datasheet (PDF)

GS-D200 GS-D200S 2/2.5A BIPOLAR STEPPER MOTOR DRIVE MODULES FEATURES Wide supply voltage range Full/Half step drive capability Logic signals TTL/CMOS compatible Programmable motor phase current and chopper frequency Selectable Slow/Fast current decay Synchronization for multimotor applications Remote shut-down Home position indication DESCRIPTION The GS-D200 and the GS-D200S are drive modules that directly interface a microprocessor to a two phase, bipolar, permanent magnet stepper motors. The p.

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GS-D200 GS-D200S 2/2.5A BIPOLAR STEPPER MOTOR DRIVE MODULES FEATURES Wide supply voltage range Full/Half step drive capability Logic signals TTL/CMOS compatible Programmable motor phase current and chopper frequency Selectable Slow/Fast current decay Synchronization for multimotor applications Remote shut-down Home position indication DESCRIPTION The GS-D200 and the GS-D200S are drive modules that directly interface a microprocessor to a two phase, bipolar, permanent magnet stepper motors. The phase current is chopper controlled, and the internal phase sequence generation reduces the burden of the controller and it simplifies software development. The GS-D200 uses bipolar power outputs while the GS-D200S has powermos outputs to significantly reduce both commutation and conduction losses. A further benefit offered by the GS-D200S is the complete protection of the outputs against any type of shorts. SELECTION CHART Type Ordering Number GS-D200 GS-D200S Phase Current (A) 1.0 nom. (0.5 to 2.0) 2.0 nom. (0.5 to 2.5) Voltage Drop (V) 4.1 max. 2.5 max. Supply Voltage (V) 10 to 46 5.0± 5% 12 to 40 5.0± 5% June 1994 1/17 GS-D200/GS-D200S ABSOLUTE MAXIMUM RATINGS Symbol Vs Vss Tstg Tcop DC Supply Voltage (pin 18) DC Logic Supply Voltage (pin 12) Storage Temperature Range Operating Case Temperature Range Parameter GS-D200 GS-D200S Value 48 42 7 – 40 to +105 – 20 to +85 Unit V V V °C °C ELECTRICAL CHARACTERISTICS (TA = 25°C and VS=24V unless otherwise specified) Value Symbol Is Iss Vi Parameter Quiescent Supply Current Quiescent Logic Supply Current Input Voltage Test Conditions Min Pin 18 Pin 12 Vss=5V Pin 3,4,6,7,10,11 Pin 3,4,6,7,10,11 Low High V i=Low V i=High Io=1A Io=2A 5 17 Pin 6 (See fig. 1) ” ” ” ” 0.5 1 1 1 1 2 60 0.8 Vss 0.6 10 1.8 1.8 Typ Max 20 mA mA V V mA µA V V A kHz µs µs µs µs µs Unit Ii Input Current Vsat Vsat IoL fc tclk ts th tr trclk Pin Source/Sink Saturation Voltage(GS-D200) 14,15,16,17 Source/Sink Saturation Voltage(GS-D200S) Pin 14,15,16,17 Current Limit Intervention Chopper Frequency Stepckl Width Set Up Time Hold Time Reset Width Reset to Clock Set Up Time GS-D200S Figure 1: Signals Timing 2/17 GS-D200/GS-D200S Figure 2: GS-D200 and GS-D200S Block Diagram 3/17 GS-D200/GS-D200S Figure 3: GS-D Modules Typical Application Figure 4: GS-D200 and GS-D200S Connection Diagram (Top view) 4/17 GS-D200/GS-D200S PIN DESCRIPTION Pin 1 2 3 4 5 6 7 8 Function GND1 Sync Reset Half/Full Home Stepclk CW/CCW Oscillator Description Return path for the logic signals and 5V supply. Chopper oscillator output. Several modules can be synchronized by connecting together all Sync pins. This pin can be used as the input for an external clock source. Asynchronous reset input. An active low pulse on this input preset the internal logic to the initial state (ABCD=0101). Half/Full step selection input. When high or unconnected the half step operation is selected. When high, this output indicates that the internal counter is in its initial state (ABCD=0101). This signal may be used in conjunction with a mechanical switch to ground or with open collector output of an optical detector to be used as a system home detector. The motor is moved one step on the rising edge of this signal. Direction control input. When high or unconnected clockwise rotation is selected. Physical direction of motor rotation depends also on windings connection. The chopper oscillator timing, internally fixed at 17kHz, can be modified by connecting a resistor between this pin and Vss or a capacitor between this pin and Gnd1. The oscillator input must be grounded when the unit is externally synchronized. Phase current setting input. A resistor connected between this pin and Gnd1 or Vss, allows the factory setted phase current value (1A for GS-D200 and 2A for GS-D200S) to be changed. Logic input that allows the phase current decay mode selection. When high or unconnected the slow decay is selected. Module enable input. When low this input floats the outputs enabling the manual positioning of the motor. Must be LOW during power-up and down sequence, HIGH during normal operation. 5V supply input. Maximum voltage must not exceed 7V. Return path for the power section. D output. C output. B output. A output. Module and motor supply voltage. Maximum voltage must not exceed the specified values. 9 10 11 12 13 14 15 16 17 18 Ioset Control Enable V ss GND2 D C B A Vs 5/17 GS-D200/GS-D200S BIPOLAR STEPPER MOTOR BASICS Simplified to the bare essentials, a bipolar permanent magnet motor consists of a rotating-permanent magnet surrounded by stator poles carrying the windings (fig. 5). One-Phase-on or Wave Drive Only one winding is energized at any given time according to the sequence : AB - CD - BA - DC (BA means that the current is flowing from B to A). Figure 5: Simplified Bipolar Two Phase Motor Fig. 6 shows the sequence for a clockwise rotation and the corresponding rotor position. Two-Phase-on or Normal Drive This mode gives the highest tor.


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