L6470H STMicroelectronics, L6470H Datasheet - Page 25

• 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
Note:
6.9
Table 7.
1. First harmonic resonance frequency.
2. Lower ESR value allows driving greater load capacitors.
If a direct clock source is used, it must be connected to OSCIN pin and OSCOUT pin
supplies the inverted OSCIN signal (see
Figure 10. OSCIN and OSCOUT pins configurations
When OSCIN is UNUSED, it should be connected to ground.
When OSCOUT is UNUSED it should be left floating.
Overcurrent detection
When the current in any of the power MOSFETs exceeds a programmed overcurrent
threshold, STATUS register OCD flag is forced low until the overcurrent event is expired and
a GetStatus command is sent to the IC (see paragraphs
event expires when all the power MOSFET currents fall below the programmed overcurrent
threshold.
Crystal/resonator freq.
CL values according to external oscillator frequency
16MHz
24MHz
32MHz
8MHz
Doc ID 16737 Rev 2
(1)
Figure
10).
25pF (ESR
18pF (ESR
15pF (ESR
10pF (ESR
9.1.22
C
and 9.1.17). Overcurrent
L
max
max
max
max
(2)
Functional description
= 80Ω)
= 50Ω)
= 40Ω)
= 40Ω)
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