EVAL-IBU-STR7 STMicroelectronics, EVAL-IBU-STR7 Datasheet - Page 19

• Manufacturer Part Number: EVAL-IBU-STR7
• Description: Power Management Modules & Development Tools L640 SPI DC Driver Multi-Motor Eval BRD
• Manufacturer: STMicroelectronics
• Type: Motor / Motion Controllers & Driversr

Specifications of EVAL-IBU-STR7

• Interface Type: RS-232, Ethernet
• Operating Supply Voltage: 4.4 V to 36 V
• Product: Power Management Modules
• For Use With/related Products: L6460
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AN3097
3.2.3
By ticking the auto-check boxes, you can configure the operation mode of the single half
bridge outputs. The options available are:
●
●
●
●
●
●
In the right-hand side of the window you can set other bridge parameters (see
1.
2.
3.
4.
Figure 19. Bridge 1 and 2 configuration
Finally to enable the bridges, click on "Enable motors 1 and 2" and move the PWM sliders to
a percentage different to the 0 default value.
To put the bridges in parallel it is necessary to tick the "motors 1 and 2 paralleled" auto-
check box: Output DC1+ and DC2+ is shorted together and so DC1- and DC2- also. The
resulting bridge uses the driving logic of bridge 1 as mentioned above.
How to enable the DC3 and DC4 output bridges
During the startup procedure the bridges are in high impedance status and after they can be
enabled through the SPI.
In the first software window click the L6460 device and then the "Bridge 3" or "Bridge 4"
button, the following window appears
'0': Hold the output low (low side power on)
'1': Hold the output high (high side power on)
HiZ: high impedance status (high and low side off)
PWM_1-0: the output is alternatively in status '0' or '1'
PWM_HiZ-0: the output is alternatively in status 'HiZ' or '0'
PWM_1-HiZ: the output is alternatively in status '1' or 'HiZ'
PWM source selection (internal or external)
PWM duty cycle
Overcurrent protection threshold
Overcurrent offtime selection
Doc ID 16599 Rev 2
(Figure
The EVAL6460 controlled by the EVAL_IBU-STR7
20).
Figure
19):
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