Anterwell Technology Ltd.
| Payment Terms | T/T, Western Union, Paypal |
| Supply Ability | 8000pcs |
| Delivery Time | 1 day |
| Packaging Details | Please contact me for details |
| Motor supply voltage | 46 V |
| Control supply voltage | 46 V |
| FET Drain-Source voltage | 100 V |
| TTL input voltage | −0.3 to +7 V |
| SYNC terminal voltage | −0.3 to +7 V |
| Storage temperature | −40 to +150°C |
| Brand Name | Anterwell |
| Model Number | SLA7033M |
| Certification | new & original |
| Place of Origin | original factory |
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Product Specification
| Payment Terms | T/T, Western Union, Paypal | Supply Ability | 8000pcs |
| Delivery Time | 1 day | Packaging Details | Please contact me for details |
| Motor supply voltage | 46 V | Control supply voltage | 46 V |
| FET Drain-Source voltage | 100 V | TTL input voltage | −0.3 to +7 V |
| SYNC terminal voltage | −0.3 to +7 V | Storage temperature | −40 to +150°C |
| Brand Name | Anterwell | Model Number | SLA7033M |
| Certification | new & original | Place of Origin | original factory |
| High Light | electronic integrated circuit ，linear integrated circuits | ||
SLA7032M/SLA7033M
2-Phase Stepper Motor Unipolar Driver ICs
Absolute Maximum Ratings
| Parameter | Symbol | Ratings | Units | |
| SLA7032M | SLA7033M | |||
| Motor supply voltage | VCC | 46 | V | |
| Control supply voltage | VS | 46 | V | |
| FET Drain-Source voltage | VDSS | 100 | V | |
| TTL input voltage | VIN | −0.3 to +7 | V | |
| SYNC terminal voltage | VSYNC | −0.3 to +7 | V | |
| Reference voltage | VREF | −0.3 to +7 | V | |
| Sense voltage | VRS | −5 to +7 | V | |
| Output current | IO | 1.5 | 3 | A |
| Power dissipation | PD1 | 4.5 (Without Heatsink) | W | |
| PD2 | 35 (Tc = 25°C) | W | ||
| Channel temperature | Tch | +150 | °C | |
| Storage temperature | Tstg | −40 to +150 | °C | |
Application Notes
■ Outline
SLA7032M (SLA7033M) is a stepper motor driver IC developed to reduce the number of external parts required by the conventional SLA7024M (SLA7026M). This IC successfully eliminates the need for some external parts without sacrificing the features of SLA7024M (SLA7026M). The basic function pins are compatible with those of SLA7024M (SLA7026M).
■ Notes on Replacing SLA7024M (SLA7026M)
SLA7032M (SLA7033M) is pin-compatible with SLA7024M (SLA7026M). When using the IC on an existing board, the following preparations are necessary:
(1) Remove the resistors and capacitors attached for setting the chopping OFF time. (r3, r4, C1, and C2 in the catalog)
(2) Remove the resistors and capacitors attached for preventing noise in the detection voltage VRS from causing malfunctioning and short the sections from which the resistors were removed using jumper wires. (r5, r6, C3, and C4 in the catalog)
(3) Normally, keep pins 2 and 13 grounded because their functions have changed to synchronous and asynchronous switching (SYNC terminals). For details, see "Circuit for Preventing Abnormal Noise When the Motor Is Not Running (Synchronous circuit)." (Low: asynchronous, High: synchronous)
■ Circuit for Preventing Abnormal Noise When the Motor Is Not Running (Synchronous Circuit)
A motor may generate abnormal noise when it is not running. This phenomenon is attributable to asynchronous chopping between phases A and B. To prevent the phenomenon, SLA7032M (SLA7033M) contains a synchronous chopping circuit. Do not leave the SYNC terminals open because they are for CMOS input. Connect TTL or similar to the SYNC terminals and switch the SYNC terminal level high or low.
When the motor is not running, set the TTL signal high (SYNC terminal voltage: 4 V or more) to make chopping synchronous. When the motor is running, set the TTL signal low (SYNC terminal voltage: 0.8 V or less) to make chopping asynchronous. If chopping is set to synchronous at when the motor is running, the motor torque deteriorates before the coil current reaches the set value. If no abnormal noise occurs when the motor is not running, ground the SYNC terminals (TTL not necessary).
The built-in synchronous chopping circuit superimposes a trigger signal on the REF terminal for synchronization between the two phases. The figure below shows the internal circuit of the REF terminal. Since the ∆VREF varies depending on the values of R1 and R2, determine these values for when the motor is not running within the range where the two phases are synchronized.
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Company Details
Business Type:
Distributor/Wholesaler,Trading Company
Year Established:
2004
Total Annual:
500000-1000000
Employee Number:
20~30
Ecer Certification：
Site Member
King--- Originator of ANTERWELL, engaged in the IC electronics industry in 1998 and establish ANTERWELL in 2004. The company is located in Shenzhen Huaqiang North, the largest electronic center in Asia. Our main business is the technical development and ... King--- Originator of ANTERWELL, engaged in the IC electronics industry in 1998 and establish ANTERWELL in 2004. The company is located in Shenzhen Huaqiang North, the largest electronic center in Asia. Our main business is the technical development and ...
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