Datasheet
Table Of Contents
- Figure 1. EVAL6460 demonstration board
- 1 The L6460 main features
- 2 EVAL6460 board description
- 3 The EVAL6460 controlled by the EVAL_IBU-STR7
- Figure 5. EVAL_IBU-STR7 board
- Figure 6. EVAL_IBU-STR7 schematic board
- 3.1 Board connection and configuration
- 3.2 Starting flexSPIN evaluation software
- Figure 13. FlexSPIN evaluation software - start window
- 3.2.1 How to turn-on the VswDrv regulator
- 3.2.2 How to enable the DC1 and DC2 output bridges
- 3.2.3 How to enable the DC3 and DC4 output bridges
- 3.2.4 How to assign and read a GPIO
- 3.2.5 How to read and clear an undervoltage event
- 3.2.6 How to manage the interrupt controller
- 3.2.7 How to put the device into "low power" condition and awaken it
- 3.2.8 How to generate a PWM
- 3.2.9 How to close the low voltage power switch
- 3.2.10 How to measure an input voltage using A-D converter
- 3.2.11 How to use the digital comparator
- 3.2.12 How to configure and program the device via the SPI sequencer
- 3.2.13 How to read the device temperature
- 3.2.14 How to work in master - slave configuration
- 4 Revision history
AN3097 The EVAL6460 controlled by the EVAL_IBU-STR7
Doc ID 16599 Rev 2 17/34
Click the "Switching Reg. controller" button, the "Switching Regulator controller" window
then appears (Figure 15).
Figure 15. Switching regulator controller
To obtain the output voltage of 12 V as prearranged (VSupply = 24 V), do the following (see
Figure 16):
1. Raise the duty cycle of the generated pulse to 58% by clicking the "+" button close to
the value
2. Tick the "Enable" auto-check box, the VswDrv then turns-on.
Figure 16. Enable switching regulator controller
If you want to increase the output voltage you can act on the reference voltage of the
feedback, for example if you raise it to 1 V by clicking the "+" button close to the value, the
output voltage rises by about 25%.
In this demonstration board, it is possible to change the VswDrv voltage using the internal
multiple range 6-bit current sink DAC.
The DAC output is connected to GPIO8, and then in order to use it to change the VswDrv
voltage, the JP8 must be closed (VSWDRV_FB connected to GPIO8).
In the first software window click the L6460 device and then the "Current DAC" button, the
following window appears (Figure 17).
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