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EVAL6393FB

P1-P3P4-P6P7-P9
For further information contact your local STMicroelectronics sales office.
October 2012 Doc ID 023821 Rev 1 1/9
9
EVAL6393FB
Low voltage full-bridge demonstration board based on the L6393
advanced high voltage gate driver
Data brief
Features
■ ~150 W drive capability (50 V - 3.0 A
r.m.s.
)
■ Very low area occupation, all devices and
power switches in SMD package (no heatsink)
■ Fast-decay or slow-decay on-board constant
off-time peak current control
■ PWM voltage mode control with overcurrent
protection possible via external logic signals
■ Driver supply voltage on-board generation
directly from BUS voltage
■ Carefully optimized layout
Description
The EVAL6393FB demonstrates how to use two
L6393 drivers to drive a single-phase load
through a full-bridge topology. This allows both
the direction and the value of the current flowing
into the load to be controlled. Typical loads, which
can be effectively driven by using this topology,
are single-phase BLDC motors, fans and HID
lamps. Thanks to the integrated features of the
L6393, the board has a very small footprint and
an optimized layout, and can be simply run by
applying the BUS voltage and a direction signal.
EVAL6393FB
www.st.com
Board description EVAL6393FB
2/9 Doc ID 023821 Rev 1
1 Board description
Figure 1. Jumper and connector location
Table 1. EVAL6393FB electrical specifications
Parameter Value
Supply voltage range (VS)
(1)
(2)
1. Minimum VS voltage restriction is due to biasing current of the Zener diode used to generate V
cc
. This limit
can be decreased by changing R29 value or by opening JP3 and providing an externally generated V
cc
through connector J1.
2. Maximum VS voltage limit can be increased up to 580 V by replacing the power switches and bulk
capacitor C15 with components with adequate voltage ratings. Resistor R29 should be removed and an
externally generated V
cc
should be provided through connector J1.
32 V to 52 V
DC
RMS output current rating (OUT x) Up to 3.0 A
Driver supply voltage (V
CC
)
(3)
3. When externally supplied through J1 with JP3 opened, otherwise V
cc
= 12 V.
10 to 20 V
Logic control signals 0 to + 15 V
Operating temperature range -40 to +125 °C
Load connector
Slow/Fast Decay
selection jumpers
BUS voltage
connector
Control signals and
optional external Vcc
connector
On-board Vcc
generation jumper
Off-time setting
trimmer
Peak current
setting trimmer
AM12618v1
EVAL6393FB Board description
Doc ID 023821 Rev 1 3/9
Table 2. Jumper and connector description
Name Type Function
J1 Control signal connector Optional control signal and external V
CC
connector
J2 Power output Load connector
J3 Power supply BUS power supply connector
JP1 Configuration jumper To pull-up SD and/or BRAKE signal to V
CC
/3
JP2 Configuration jumper To pull-up SD and/or BRAKE signal to CPOUT
JP3 Configuration jumper
To connect the on-board generated V
CC
to the supply pins
of the drivers
Table 3. Control signal connector pinout (J1)
Pin Type Description
1 Power supply
Driver power supply V
CC
, open JP3 to provide externally
generated V
CC
2 Power supply GND
3 Digital input Driver SD signal
4 Digital input Driver BRAKE signal
5 Analog PWM input V
ctrl
signal; used to change current limit threshold
6 Digital input DIR signal; sets current direction
Table 4. Current peak detection settings
Pin Type Description
TR1 Variable resistor
Used to adjust constant off-time duration after overcurrent
detection
TR2 Variable resistor
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
protection
JP1 open, JP2 closed on !BRAKE and !SD
externally provided through J1
PWM voltage control with fast-decay overcurrent
protection
JP1 open, JP2 closed on !SD and !BRAKE
externally provided through J1
P1-P3P4-P6P7-P9

EVAL6393FB

Mfr. #:
Buy EVAL6393FB
Manufacturer:
STMicroelectronics
Description:
Power Management IC Development Tools L6393 Half-Bridge Gate Driver Board
Lifecycle:
New from this manufacturer.
Delivery:
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