L6470H STMicroelectronics, L6470H Datasheet - Page 20

• Manufacturer Part Number: L6470H
• Description: Motor / Motion / Ignition Controllers & Drivers 8 - 45V 7.0A 1/128 Microstepping SPI
• Manufacturer: STMicroelectronics
• Type: Micro Stepping Motor Driverr
• Series: -r

Specifications of L6470H

• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 8 V to 45 V
• Supply Current: 0.5 mA
• Mounting Style: SMD/SMT
• Package / Case: HTSSOP-28
• Operating Temperature: - 40 C to + 125 C
• Applications: Stepper Motor Driver, 2 Phase
• Evaluation Tools: *
• Number Of Outputs: 1
• Current - Output: 3A
• Voltage - Load: 8 V ~ 45 V
• Voltage - Supply: 3.3V, 5V
• Mounting Type: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Functional description
6.4
20/64
Figure 4.
Microstepping
The driver is able to divide the single step into up to 128 microsteps. Stepping mode can be
programmed by STEP_SEL parameter in STEP_MODE register (see
Step mode can be only changed when motor is stopped. Every time the step mode is
changed the electrical position (i.e. the point of microstepping sinewave that is generated) is
reset to first microstep and the absolute position counter value (see
meaningless.
Figure 5.
Charge pump circuitry
Normal mode and microstepping (128 microsteps)
Doc ID 16737 Rev 2
Section
Table
17).
6.5) becomes
L6470