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
The L6460 main features AN3097
4/34 Doc ID 16599 Rev 2
1 The L6460 main features
Four widely configurable full bridges:
● Bridges 1 and 2:
– Diagonal Ron: 0.6 Ω typ.
– Max. operative current = 2.5 A
● Bridges 3 and 4:
– Diagonal Ron: 0.85 Ω typ.
– Max. operative current = 1.5 A
Possible configurations for each bridge:
● Bridge 1:
– DC motor driver
– Super DC (bridge 1and 2 parallel to form super-bridge 1).
– 2 independent half bridges
– 1 super half bridge (bridge 1 side A and bridge 1 side B parallel to form super-half
bridge1)
– 2 independent switches (high or low side)
– 1 super-switch (high or low side)
● Bridge 2 has the same configurations as bridge 1
● Bridge 3 has the same configurations as bridge 1 (bridge 3 and 4 paralleled to form
super-bridge 2) plus the following:
– ½ stepper motor driver
– 2 buck regulators (VAUX1_SW, VAUX2_SW)
– Super-buck regulator (VAUX1//2_SW)
● Bridge 4 has the same configurations as bridge 1 plus the following:
– ½ stepper motor driver
– 1 super buck regulator (VAUX3_SW)
– Battery charger.
The L6460 is intended to maximize the use of its components, so when an internal circuit is
not in use it can be used for other applications.
Bridge 3, for example, can be used as a full bridge or to implement two switching regulators
with synchronous rectification. To obtain this flexibility the L6460 includes two independent
regulation loops that can be used for these regulators; when the bridge is used as a motor
driver, the two regulation loops can be redirected on general purpose I/Os to allow the
possibility of assembling a switching regulator by just adding an external FET.