EVAL6393FB Datasheet, PDF (3/9 Pages) STMicroelectronics – Carefully optimized layout

EVAL6393FB
Board description
Table 2.
Name
J1
J2
J3
JP1
JP2
JP3
Jumper and connector description
Type
Function
Control signal connector Optional control signal and external V_CC connector
Power output
Load connector
Power supply
BUS power supply connector
Configuration jumper
Configuration jumper
To pull-up SD and/or BRAKE signal to V_CC /3
To pull-up SD and/or BRAKE signal to CPOUT
Configuration jumper
To connect the on-board generated V_CC to the supply pins
of the drivers
Table 3.
Pin
1
2
3
4
5
6
Control signal connector pinout (J1)
Type
Description
Power supply
Power supply
Driver power supply V_CC, open JP3 to provide externally
generated V_CC
GND
Digital input
Driver SD signal
Digital input
Driver BRAKE signal
Analog PWM input
Digital input
V_ctrl signal; used to change current limit threshold
DIR signal; sets current direction
Table 4.
Pin
TR1
TR2
Current peak detection settings
Type
Description
Variable resistor
Variable resistor
Used to adjust constant off-time duration after overcurrent
detection
Used to adjust overcurrent detection threshold I_pk
I_pk = V(CP-)/[R10//R11//R12//R13]
Table 5. Control scheme configuration
Description
Jumper configuration
Constant off-time peak current control with slow-
decay
JP1 closed on !SD and JP2 closed on !BRAKE
Constant off-time peak current control with fast-
decay
JP1 closed on !SD and JP2 closed on !SD
PWM voltage control with slow-decay overcurrent JP1 open, JP2 closed on !BRAKE and !SD
protection
externally provided through J1
PWM voltage control with fast-decay overcurrent JP1 open, JP2 closed on !SD and !BRAKE
protection
externally provided through J1
Doc ID 023821 Rev 1
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