L6470H STMicroelectronics, L6470H Datasheet - Page 8

• 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

Block diagram
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Block diagram
Figure 1.
BUSY/SYNC
STBY/RST
FLAG
STCK
SDO
SDI
SW
CK
CS
V
DD
Oscillator
DGND
V
VDD
Block diagram
16MHz
DD
OSCIN
Ext. Osc. driver
Clock gen.
&
OSCOUT ADCIN
Temperature
Control
sensing
Logic
Doc ID 16737 Rev 2
ADC
Current DACs
Comparators
&
Voltage Reg.
VREG
HS
HS
HS
HS
LS
LS
LS
LS
3 V
A1
A2
B1
B2
A1
A2
B1
B2
HS
LS
HS
LS
Charge
A1
B1
A1
B1
pump
CP
V
V
boot
boot
VBOOT
Current
sensing
V
V
boot
boot
HS
HS
LS
LS
AGND
A2
B2
A2
B2
AM02377v1
L6470
OUT1A
OUT2A
OUT1B
OUT2B
VSA
VSA
PGND
VSB
VSB
PGND