ATA6830-PKH Atmel, ATA6830-PKH Datasheet
ATA6830-PKH
Specifications of ATA6830-PKH
Related parts for ATA6830-PKH
ATA6830-PKH Summary of contents
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... This allows automatically accelerated and slowed down. The stepping motor is operated in compensated half-step operation. The maximum clock frequency at which the stepping motor is operated depends on the supply voltage, the chip temperature, the operating mode, and position difference. Intelligent Stepper Motor Driver ATA6830 Rev. 4575C–BCD–05/03 1 ...
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... Figure 2. Pinning QFN 28 ATA6830 2 Voltage Regulator UART Command Interpreter Test Logic VBAT1A 1 n.c. 2 SM1A 3 MLP 7x7mm 0.8mm pitch SRA ATA6830 4 28 lead SM2A 5 n.c. 6 VBAT2A BUS VBAT1B SM1B SRB SM2B VBAT2B ATA6830 VBAT1B 21 n.c. 20 SM1B 19 SRB 18 SM2B 17 n.c. 16 VBAT2B 15 4575C–BCD–05/03 ...
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... Reference current setting. Connected externally with a resistor to AGND. The value of the resistor 26 RSET determines all internal current sources and sinks. Oscillator pin, connected externally with a capacitor to AGND. The value of the capacitance determines 27 COS the chopper frequency and the baud rate for data reception. 28 n.c. Not connected 4575C–BCD–05/03 ATA6830 3 ...
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... Functional Description Analog Part ATA6830 4 Figure 3. Analog Blocks VBAT Bias Oscillator Bandgap Generator COS RSET AGND The circuit contains an integrated 5 V regulator to supply the internal logic and analog circuit blocks. The regulator uses an adjusted bandgap as voltage reference. Also all other parts that require an excellent voltage reference, such as the voltage monitoring block refer to the bandgap ...
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... Exception handling is integrated to interpret and react on the temperature, supply volt- age, and coil-current signals from the analog part. Step Time Memory Maximum Step Time Voltage Levels New Step Time Actual Step Time reference run Stepper Motor Control new position Cruise Control Desired Position Instantaneous Position ATA6830 Temperature Signals Error Signals 5 ...
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... Stepping Motor Driver Figure 5. H-bridge Driver Stage Stepper Motor Control Clk Reset Data Communication ATA6830 6 Driver Logic VBAT SM1x SM2x SRx Vref Shunt Figure 5 shows the diagram of one H-bridge driver stage. It consists of two NMOS and two PMOS power transistors. An external shunt is used for measuring the current flow- ing through the motor coil ...
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... Figure 8. Command Bits HIGH BYTE START 8 DATA BIT BITS SYNCHRONIZATION PATTERN PARITY START BIT BIT STOP BIT SPACE MESSAGE FRAME LOW BYTE PARITY START BIT BIT STOP 8 DATA BIT BITS ATA6830 PARITY BIT STOP BIT PARITY BIT 1 0 STOP BIT 7 ...
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... New position (testmode full extension) New position (testmode full retraction) ATA6830 8 There are different commands for controlling the stepping motor. Table 1 shows a list of all implemented commands and their meanings. The first command, the synchronization sequence, is described above. The second group of commands are the reference com- mands ...
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... After the reference run the circuit will switch to normal operation. To perform a reference run during normal operation, the command has to be sent only once. Figure 10 shows the state diagram for the implemented sequence processor. ATA6830 REFERENCE RUN POSITION 1 SEQUENCE ...
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... Figure 10. Flow Diagram for the Power-up Sequence cruise control ATA6830 10 reset state N synchronization Y idle state N 3 successive reference run commands Y reference run Y new position? N idle state 4575C–BCD–05/03 ...
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... Hz) before the direction can turn. The cruise control is shown in Figure 11. The possible stepping frequencies for velocity control are shown in Table 3. ATA6830 Int. Counter Steptime Drive 704 3300 µ ...
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... ATA6830 12 Figure 11. Dynamic Frequency Adaption frequency present frequency minimum frequency (300 Hz) present position Table 3. Frequency Ramp Number Step Frequency (Hz addition to the actual step frequency there is a maximum step frequency up to which the actual step frequency can rise. To secure a correct operation at low supply voltages the maximum value for the stepping frequency is smaller at low voltages ...
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... Figure 14a. After a blanking time of 2.5 µs to suppress turn-on peaks the current is measured via the shunt voltage. As soon as the current has reached its nominal value it is turned off again. The current flow in this state is shown in Figure 14b. ATA6830 Maximum Step Frequency (V once > ...
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... Exception Handling ATA6830 14 Figure 13. Chopper Current Control turn on signal I max coil current flyback comparator shunt resistor voltage blanking time Figure 14. Current Flow in Halfbridge ON OFF ON OFF a) During operation, different exceptional states or errors can arise to which the circuit must correspondingly react. These are described below: • ...
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... The error signal timing is shown in Figure 15. Figure 15. Error Signal Timing MESSAGE FRAME ca. 9 Buslevel 0 Symbol V BAT V BAT I OUT V BUS ESD ESD T Stg jmax ATA6830 BAT ERROR RESPONSE 3 s Value -0.3 to +45 -0.3 to +28 ±1.1 -0 +0.3 BAT 2 500 -55 to +150 -40 to +105 +150 Unit °C ° ...
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... COS = 100 pF ±5% 3 Reference 4.1 Reference voltage R 4.2 Reference voltage V 5 Full Bridges R R DSON 5.1 *) Type means 100% tested 100% correlation tested Characterized on samples Design parameter Note: 1. cmd = command ATA6830 16 Symbol R thJC R thJA Symbol V BAT T op Symbol Pin = BAT I_total 15 ...
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... V 9_DOWN 15 9_HYS 15 9_5_UP 15 9_5_DOWN 15 9_5_HYS 15 10_UP 15 10_DOWN 15 10_HYS 15 10_5_UP 15 10_5_DOWN 15, 21 ATA6830 Min. Typ. Max. Unit 10 µ 200 mA 240 300 360 mA 500 550 600 mA 600 660 720 mA 700 780 860 mA 840 936 1040 mA 1.6 A 1.6 A 1/16 fcos 8.8 9.1 9.4 V 8.6 8 ...
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... Distance 10 comparator falling edges 6.28 Distance 10.5 V comparator rising edges 6.29 Distance 10.5 V comparator falling edges *) Type means 100% tested 100% correlation tested Characterized on samples Design parameter Note: 1. cmd = command ATA6830 18 Symbol Min. Typ. Pin 200 10_5_HYS 15 10.8 11.1 11_UP 15, 21 ...
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... Min. Typ. Max. 2350 2400 2450 150 10 HYS 160 0 10 Symbol Value 100 to 140 PH t minimum 10 MP maximum 75 T 220 to 225 Peak Peak ATA6830 Unit Type* Baud µ (1) cmd D (1) cmd D °C B °C B °C B °C B °C B Unit °C/s °C s °C °C/s 19 ...
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... Figure 16. Application Circuit ATA6830 20 GND IGN MLP 7x7mm 0.8mm pitch ATA6830 4 28 lead BUS 4575C–BCD–05/03 ...
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... Table 5. Bill of Material Reference Component C1 Oscillator capacitor C2 Bus input capacitor C3 Ceramic capacitor C4 Capacitor C5 Capacitor C6 Capacitor D1 Rectifier R1 Reference resistor R2 Bus input resistor R3 Shunt resistor side A R4 Shunt resistor side A ATA6830 Value 100 pF 100 nF 10 µF 100 µF 100 nF – kW ...
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... Ordering Information Extended Type Number ATA6830-PKH Package Information The package is a thermal power package MLF 7 ´ 7 with a soldered leadframe and 28 pins. The overall size is 7 ´ ATA6830 22 Package Remarks 7 mm ´ QFN 4575C–BCD–05/03 ...
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