Texas Instruments DRV8412 Integrated Motor Driver for Brushed and Stepper Motors with Piccolo F28035 controlCARD DRV8412 DRV8412-C2-KIT 数据表
产品代码
DRV8412-C2-KIT
GVDD
GVDD
PVDD
PVDD
M
M
Controller
RESET_AB
PWM_B
OC_ADJ
GND
GND_A
GND_B
OUT_B
PVDD_B
AGND
VREG
M3
M2
BST_B
BST_C
PVDD_C
OUT_C
RESET_CD
PWM_D
VDD
GVDD_C
OUT_D
PVDD_D
BST_D
GVDD_D
PWM_C
GND_D
M1
GND_C
GVDD_B
OTW
FAULT
PWM_A
GVDD_A
BST_A
PVDD_A
OUT_A
www.ti.com
SLES242C – DECEMBER 2009 – REVISED MAY 2010
Dual Full Bridge PWM Motor Driver
Check for Samples:
The DRV8412/32 require two power supplies, one at
1
FEATURES
12 V for GVDD and VDD, and another up to 50 V for
•
High-Efficiency Power Stage (up to 97%) with
PVDD. The DRV8412/32 can operate at up to
Low R
DS(on)
MOSFETs (80 m
Ω
at T
J
= 25°C)
500-kHz switching frequency while still maintain
•
Operating Supply Voltage up to 50 V
precise control and high efficiency. They also have an
(70 V Absolute Maximum)
innovative protection system safeguarding the device
against a wide range of fault conditions that could
against a wide range of fault conditions that could
•
DRV8412 (power pad down): up to 2 x 3 A
damage
the
system.
These
safeguards
are
Continuous Output Current (2 x 6 A Peak) in
short-circuit
protection,
overcurrent
protection,
Dual Full Bridge Mode or 6 A Continuous
undervoltage
protection,
and
two-stage
thermal
Current in Parallel Mode (12 A Peak)
protection. The DRV8412/32 have a current-limiting
•
DRV8432 (power pad up): up to 2 x 7 A
circuit that prevents device shutdown during load
Continuous Output Current ( 2 x 12 A Peak) in
transients such as motor start-up. A programmable
Dual Full Bridge Mode or 14 A Continuous
overcurrent detector allows adjustable current limit
and
and
protection
level
to
meet
different
motor
Current in Parallel Mode (24 A Peak)
requirements.
•
PWM Operating Frequency up to 500 kHz
The DRV8412/32 have unique independent supply
•
Integrated Self-Protection Circuits Including
and ground pins for each half bridge, which makes it
Undervoltage, Overtemperature, Overload, and
possible to provide current measurement through
Short Circuit
external shunt resistor and support multiple motors
•
Programmable Cycle-by-Cycle Current Limit
with different power supply voltage requirements.
Protection
Simplified Application Diagram
•
Independent Supply and Ground Pins for Each
Half Bridge
Half Bridge
•
Intelligent Gate Drive and Cross Conduction
Prevention
Prevention
•
No External Snubber or Schottky Diode is
Required
Required
APPLICATIONS
•
Brushed DC and Stepper Motors
•
Three Phase Permanent Magnet Synchronous
Motors
Motors
•
Robotic and Haptic Control System
•
Actuators and Pumps
•
Precision Instruments
•
TEC Drivers
DESCRIPTION
The DRV8412/32 are high performance, integrated
dual full bridge motor drivers with an advanced
protection system.
dual full bridge motor drivers with an advanced
protection system.
Because of the low R
DS(on)
of the H-Bridge MOSFETs
and intelligent gate drive design, the efficiency of
these motor drivers can be up to 97%, which enables
the use of smaller power supplies and heatsinks, and
are good candidates for energy efficient applications.
these motor drivers can be up to 97%, which enables
the use of smaller power supplies and heatsinks, and
are good candidates for energy efficient applications.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2009–2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.