L6470H STMicroelectronics, L6470H Datasheet - Page 43

• 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

L6470
9.1.17
9.1.18
9.1.19
OCD_TH
The OCD_TH register contains the overcurrent threshold value (see paragraph
details). The available range is from 375 mA to 6 A, steps of 375 mA as shown in
Table 14.
STALL_TH
The STALL_TH register contains the stall detection threshold value (see paragraph
details). The available range is from 31.25 mA to 4 A with a resolution of 31.25 mA.
Table 15.
STEP_MODE
The STEP_MODE register has the following structure:
Table 16.
The STEP_SEL parameter selects one of eight possible stepping modes:
SYNC_EN
…
0
0
1
1
…
0
0
1
1
Bit 7
…
OCD_TH [3..0]
0
0
1
1
…
0
0
1
1
Overcurrent detection threshold
Stall detection threshold
STEP_MODE register
STALL_th [6..0]
…
0
0
1
1
Bit 6
…
0
0
1
1
…
0
0
1
1
SYNC_SEL
…
0
1
0
1
…
Bit 5
0
0
1
1
Doc ID 16737 Rev 2
…
0
0
1
1
Bit 4
…
0
1
0
1
Overcurrent detection threshold
Bit 3
0
Stall detection threshold
375 mA
750 mA
5.625 A
6 A
…
Bit 2
31.25 mA
62.5 mA
3.969 A
4 A
…
Programming manual
STEP_SEL
Bit 1
6.9
Table 14
for
7.2
Bit 0
43/64
for
.