STMicroelectronics FlexSPIN: SPI configurable stepper and DC multi motor driver evaluation board EVAL6460 EVAL6460 Data Sheet
Product codes
EVAL6460
Power bridges
L6460
62/139
Doc ID 17713 Rev 1
Figure 17.
Half bridge configuration
In this case each half bridge will behave according to the following truth table.
Note:
When “low power mode” bit is active the bridges will reduce its biasing thus contributing to
the power saving.
the power saving.
When a current limit event occurs this event will be latched and the bridges will remain in
high impedance state for the off time.
high impedance state for the off time.
Table 19.
Half bridge truth table
TSD
nReset
Low
power
mode
Enable
Current
limit
MtrXCtrl
SideA/B
PWM
OUT
1
X
X
X
X
X
X
Z
0
0
X
X
X
X
X
Z
0
1
1
X
X
X
X
Z
0
1
0
0
X
X
X
Z
0
1
0
1
0
0
0
Z
0
1
0
1
0
0
1
0
0
1
0
1
0
1
0
Z
0
1
0
1
0
1
1
1
0
1
0
1
1
X
X
Z
High side
Driver
Low side
Driver
Control
Logic
DCX Phase output
V
Supply
V
pump
Control Signals
From SPI
Fau
lt
Sig
n
als