E-L9935 STMicroelectronics, E-L9935 Datasheet - Page 22

• Manufacturer Part Number: E-L9935
• Description: IC STEPPER MOTOR DVR 2PH 20PWRSO
• Manufacturer: STMicroelectronics
• Type: 2 Phase Stepper Motor Driverr

Specifications of E-L9935

• Applications: Stepper Motor Driver, 2 Phase
• Number Of Outputs: 1
• Current - Output: ±1.2A
• Voltage - Supply: 8 V ~ 24 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: PowerSO-20 Exposed Bottom Pad
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 14.4 V
• Supply Current: 4.5 mA
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Functional description
5.15
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Cascading several devices
Cascading several devices can be done using the SDO output to pass data to the next
device. The whole frame now consists of n byte. n is the number of devices used.
Figure 10. Cascading several stepper motor drivers
Figure 11. Control sequence for 3 Stepper motor drivers
Figure 12. Paralleling several devices
Here usually only one stepper motor driver is selected at a time while all others are
deselected.
Doc ID 5198 Rev 9
L9935