DRV8402 Motor Driver Datasheet

DRV8402 Datasheet, PDF, Equivalent


Part Number

DRV8402

Description

Dual Full Bridge PWM Motor Driver

Manufacture

etcTI

Total Page 19 Pages
Datasheet
Download DRV8402 Datasheet


DRV8402
Not Recommended for New Designs
DRV8402
www.ti.com
Dual Full Bridge PWM Motor Driver
Check for Samples: DRV8402
SLES222 FEBRUARY 2009
FEATURES
1
High-Efficiency Power Stage (up to 96%) with
Low RDS(on) MOSFETs (80 mat TJ = 25°C)
Operating Supply Voltage up to 50 V
(65 V Absolute Maximum)
10 A Continuous Output Current and 24 A
Peak Current per Device
PWM Operating Frequency up to 500 kHz
Integrated Self-Protection Circuits
Programmable Cycle-by-Cycle Current Limit
Protection
Independent Supply and Ground Pins for Each
Half Bridge
Intelligent Gate Drive and Cross Conduction
Prevention
No External Snubber or Schottky Diode is
Required
Thermally Enhanced DKD (36-pin PSOP3)
Package
The DRV8402 can operate at up to 500 kHz
switching frequency while still maintaining precise
control and high efficiency. It also has an innovative
protection system integrated on-chip, safeguarding
the device against a wide range of fault conditions
that could damage the system. These safeguards are
short-circuit protection, overcurrent protection,
undervoltage protection, and two-stage thermal
protection. The DRV8402 has a current-limiting circuit
that prevents device shutdown during load transients
such as motor start-up. A programmable overcurrent
detector allows adjustable current limit and protection
level to meet different motor requirements.
The DRV8402 has unique independent supply and
ground pins for each half bridge, which makes it
possible to provide current measurement through
external shunt resistor and support multiple motors
with different power supply voltage requirements.
Simplified Application Diagram
APPLICATIONS
Brushed DC, Brushless DC, and Stepper
Motors
Three Phase Permanent Magnet Synchronous
Motors
Robotic and Haptic Control System
Actuators and Pumps
Precision Instruments
TEC Drivers
DESCRIPTION
The DRV8402 is a high performance, integrated dual
full bridge motor driver with an advanced protection
system. Because of the low RDS(on) and intelligent
gate drive design, the efficiency of this motor driver
can be up to 96%, which enables the use of smaller
power supplies and heatsinks, and is a good
candidate for energy efficient applications. This
device requires two power supplies, one at 12V for
GVDD and VDD, and one up to 50V for PVDD. The
DRV8402 is capable of driving 5 A continuous RMS
current and 12 A peak current per full bridge with low
idle power dissipation. It can also be used for up to
10 A continuous current and 24 A peak current in
parallel full bridge operation.
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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2009, Texas Instruments Incorporated

DRV8402
DRV8402
Not Recommended for New Designs
SLES222 FEBRUARY 2009
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ABSOLUTE MAXIMUM RATINGS
Over operating free-air temperature range unless otherwise noted (1)
VDD to AGND
GVDD_X to AGND
PVDD_X to GND_X (2)
OUT_X to GND_X (2)
BST_X to GND_X (2)
PARAMETER
VALUE
0.3 V to 13.2 V
0.3 V to 13.2 V
0.3 V to 65 V
0.3 V to 65V
0.3 V to 75 V
Transient peak output current (per pin), pulse width limited by internal over-current
protection circuit.
VREG to AGND
GND_X to GND
GND_X to AGND
GND to AGND
PWM_X, OC_ADJ, M1, M2, M3 to AGND
RESET_X, FAULT, OTW to AGND
15 A
0.3 V to 4.2 V
0.3 V to 0.3 V
0.3 V to 0.3 V
0.3 V to 0.3 V
0.3 V to 4.2 V
0.3 V to 7 V
Maximum continuous sink current (FAULT, OTW)
Maximum operating junction temperature range, TJ
Storage temperature, Tstg
9 mA
40°C to 150°C
55°C to 150°C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating
Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) These voltages represent the dc voltage + peak ac waveform measured at the terminal of the device in all conditions.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
DESCRIPTION
PVDD_X
Half bridge X (A, B, C, or D) DC supply voltage
GVDD_X
Supply for logic regulators and gate-drive circuitry
VDD
Digital regulator input
IO_pulse
IO
FSw
LO
Pulsed peak current per output pin
Continuous current per output pin
PWM switching frequency
Minimum output inductance under short-circuit condition and
parallel mode
ROCP_CBC
OC programming resistor range in cycle by cycle current limit
modes, Resistor tolerance = 5%
ROCP_OCL
OC programming resistor range in OC latching shutdown modes,
Resistor tolerance = 5%
TA Operating ambient temperature
MIN
NOM
MAX
UNIT
0 50 52.5 V
11.4 12.3 13.2 V
11.4 12.3 13.2 V
12 A
5A
500 kHz
4 μH
27 39 k
22 39 k
-40 85 °C
Package Heat Dissipation Ratings
PARAMETER
RθJC, junction-to-case (heat slug) thermal resistance (all bridges
running)
RθJA, junction-to-ambient thermal resistance
Exposed heat slug area
VALUE
1°C/W
This device is not intended to be used without a heatsink. Therefore,
RθJA is not specified. See the Thermal Information section.
80 mm2
2 Submit Documentation Feedback
Product Folder Link(s): DRV8402
Copyright © 2009, Texas Instruments Incorporated


Features Not Recommended for New Designs DRV8402 www.ti.com Dual Full Bridge PWM Moto r Driver Check for Samples: DRV8402 SL ES222 – FEBRUARY 2009 FEATURES 1 • High-Efficiency Power Stage (up to 96% ) with Low RDS(on) MOSFETs (80 mΩ at TJ = 25°C) • Operating Supply Voltag e up to 50 V (65 V Absolute Maximum) 10 A Continuous Output Current and 24 A Peak Current per Device • PWM Oper ating Frequency up to 500 kHz • Integ rated Self-Protection Circuits • Prog rammable Cycle-by-Cycle Current Limit P rotection • Independent Supply and Gr ound Pins for Each Half Bridge • Inte lligent Gate Drive and Cross Conduction Prevention • No External Snubber or Schottky Diode is Required • Thermall y Enhanced DKD (36-pin PSOP3) Package The DRV8402 can operate at up to 500 kH z switching frequency while still maint aining precise control and high efficie ncy. It also has an innovative protecti on system integrated on-chip, safeguard ing the device against a wide range of fault conditions that could damage the system. Th.
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