L6470
Pin connection
Doc ID 16737 Rev 2
17/64
12
VSB
Power supply
Full bridge B power supply pin. must be connected to
V
SA
16
27
PGND
Ground
Power ground pin
13
1
OUT1A
Power output
Full bridge A output 1
28
OUT2A
Power output
Full bridge A output 2
14
OUT1B
Power output
Full bridge B output 1
15
OUT2B
Power output
Full bridge B output 2
9
AGND
Ground
Analog ground.
4
SW
Logical input
External switch input pin. If not used the pin should be
connected to VDD.
21
DGND
Ground
Digital ground
22
BUSY\SYNC
Open drain output
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.
18
SDO
Logic output
Data output pin for serial interface
20
SDI
Logic input
Data input pin for serial interface
19
CK
Logic input
Serial interface clock
23
CS
Logic input
Chip Select input pin for serial interface
24
FLAG
Open drain output
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)
3
STBY\RST
Logic input
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
25
STCK
Logic input
Step clock input
EPAD Exposed pad
Ground
Internally connected to PGND, AGND and DGND pins
Table 5.
Pin description (continued)
N.
Name
Type
Function
