L6470PD STMicroelectronics, L6470PD Datasheet - Page 47

• Manufacturer Part Number: L6470PD
• Description: Motor / Motion / Ignition Controllers & Drivers dSPIN 7.0A 8 - 45 V DMOS Motor Driver
• Manufacturer: STMicroelectronics
• Type: 2 Phase Stepper Motor Driverr

Specifications of L6470PD

• Rohs: yes
• Product: Stepper Motor Controllers / Drivers
• Operating Temperature: - 40 C to + 150 C
• Mounting Style: SMD/SMT
• Package / Case: POWERSO-36
• Number Of Outputs: 4
• Output Current: 3 A
• Output Voltage: 3.2 V
• Power Dissipation: 5 W

L6470
9.1.19
Table 16.
STEP_MODE
The STEP_MODE register has the following structure:
Table 17.
1. When the register is written, this bit should be set to 0.
The STEP_SEL parameter selects one of eight possible stepping modes:
Table 18.
Every time the step mode is changed, the electrical position (i.e. the point of microstepping
sinewave that is generated) is reset to the first microstep.
Any attempt to write the register when the motor is running causes the command to be
ignored and the NOTPERF_CMD flag to rise (see
SYNC_EN
…
0
0
1
1
Bit 7
Warning:
0
0
0
0
1
1
1
1
…
0
0
1
1
Stall detection threshold
STEP_MODE register
Step mode selection
STALL_th [6..0]
…
STEP_SEL[2..0]
0
0
1
1
Bit 6
Every time STEP_SEL is changed, the value in the ABS_POS
register loses meaning and should be reset.
…
0
0
1
1
0
0
1
1
0
0
1
1
SYNC_SEL
…
Bit 5
0
0
1
1
Doc ID16737 Rev 5
…
0
0
1
1
0
1
0
1
0
1
0
1
Bit 4
…
0
1
0
1
Full-step
Half-step
1/4 microstep
1/8 microstep
1/16 microstep
1/32 microstep
1/64 microstep
1/128 microstep
Bit 3
0
Section
(1)
Stall detection threshold
9.1.22).
Bit 2
Step mode
31.25 mA
62.5 mA
3.969 A
4 A
…
Programming manual
STEP_SEL
Bit 1
Bit 0
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