L6470H STMicroelectronics, L6470H Datasheet - Page 17

• 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
Table 5.
EPAD Exposed pad
12
16
27
13
28
14
15
21
22
18
20
19
23
24
25
N.
1
9
4
3
BUSY\SYNC Open drain output
STBY\RST
OUT1A
OUT2A
OUT1B
OUT2B
DGND
PGND
AGND
Name
STCK
FLAG
SDO
VSB
SW
SDI
CK
CS
Pin description (continued)
Open drain output
Power supply
Power output
Power output
Power output
Power output
Logical input
Logic output
Logic input
Logic input
Logic input
Logic input
Logic input
Ground
Ground
Ground
Ground
Type
Doc ID 16737 Rev 2
Full bridge B power supply pin. must be connected to
V
Power ground pin
Full bridge A output 1
Full bridge A output 2
Full bridge B output 1
Full bridge B output 2
Analog ground.
External switch input pin. If not used the pin should be
connected to VDD.
Digital ground
By default this BUSY pin is forced low when the device is
performing a command. Otherwise the pin can be
configured to generate a synchronization signal.
Data output pin for serial interface
Data input pin for serial interface
Serial interface clock
Chip Select input pin for serial interface
Status Flag pin. An internal open drain transistor can pull
the pin to GND when a programmed alarm condition
occurs (step loss, OCD, thermal pre-warning or
shutdown, UVLO, wrong command, non performable
command)
Standby and reset pin. LOW logic level reset the logic
and puts the device in standby mode. If not used, should
be connected to VDD
Step clock input
Internally connected to PGND, AGND and DGND pins
SA
Function
Pin connection
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