Issue: Jul 2013


TI introduces motor driver family with integrated power management and CAN interface for use in auto



by James Hilton

Texas Instruments (TI) (NASDAQ: TXN) expanded the industry's first automotive motor driver family intended to help TI customers design automotive applications to meet the functional safety requirements of ISO 26262. With three new devices added today, the DRV32xx-Q1 family now comprises four 3-phase, brushless, pre-FET motor drivers equipped with built-in diagnostic capabilities. The DRV3202-Q1 offers automotive system designers integrated power management and CAN interface to help reduce board space and design complexity in their safety-critical applications. The DRV3203-Q1 and DRV3204-Q1 help TI customers design safety-critical applications to meet ASIL-B, while the DRV3201-Q1, previously introduced in October, 2012 helps TI customers design safety-critical applications to meet ASIL-D requirements.

The three new motor drivers added to the family provide designers with highly reliable and space-saving options intended to help them address the challenges of space constraints and harsh conditions such as high-temperature, low-voltage start-stop and cold crank situations. Applications in which these devices may be used include power steering, hybrid electric vehicles/electric vehicles (HEV/EV), power train, oil pump, water pump and electric braking systems. For more information or to order samples, visit www.ti.com/automotordriver-pr.




Key features and benefits of the DRV32xx-Q1 family:


-- Optimized component count and board space for cost- and space-sensitive
applications: The DRV3202-Q1 integrates a voltage regulator and CAN
interface to reduce component count and minimize system cost and board
space.

-- Built-in diagnostics: The DRV32xx-Q1 family integrates hard-wired
diagnostic circuits including a pre-FET driver short, over/under voltage
and over temperature. The system's microcontroller can quickly
communicate with the DRV32xx-Q1 family and monitor internal status
through serial peripheral interface (SPI).

-- Devices help TI customers design applications to meet the functional
safety requirements of ISO 26262: The DRV3201-Q1 can help TI customers
design critical-safety applications, such as electric power steering and
electric braking systems, to meet ASIL-D requirements, and the
DRV3204-Q1 and DRV3203-Q1 can help customers design safety applications,
such as oil pump and water pump, to meet ASIL-B requirements.

-- Design simplicity for start-stop and cold crank applications: With an
integrated boost regulator, the DRV3201-Q1 eliminates the need for a
large capacitor to hold battery voltage. With an integrated low drop-out
linear regulator controller (LDO) and an external FET, the DRV3203-Q1
and DRV3204-Q1 also eliminate the need for a large capacitor or external
boost regulator. This integration simplifies design and speeds up
development time.

Highly integrated motor drivers for non-safety critical automotive applications

TI has also expanded its portfolio of DRV8x motor drivers to include new devices for automotive applications that span a complete range of motors including brushed DC (BDC), stepper, and brushless DC (BLDC). The highly integrated DRV8801-Q1, DRV8823-Q1, DRV8832-Q1 and DRV8301-Q1 can reduce board space by as much as 60% compared to the competition enabling smaller, more cost effective designs. All four devices support an operating ambient temperature range of -40 to 125C, targeting non-safety critical automotive applications such as retractable navigation screens; adjustable side mirrors; adaptive front lighting; fuel pumps; and seat, door, and window control. The new devices include the following:


-- DRV8801-Q1 brushed DC motor driver, featuring 8-V to 38-V operating
range and up to 2.8-A peak output.
-- DRV8823-Q1 quad brushed, dual stepper motor driver, featuring 8-V to
32-V operating range and up to 1.5-A peak output current.
-- DRV8832-Q1 brushed DC motor driver, featuring 2.75-V to 6.8-V operating
range and up to 1-A peak output current.
-- DRV8301-Q1 3-phase brushless motor pre-driver, featuring 6-V to 60-V
operating range and integrating a gate drive up to 1.7-A, 1.5-A
step-down voltage regulator, and dual low side current sense amplifiers.


Tools and support:

Simulation models and evaluation modules (EVMs) are available for the DRV3203-Q1 and DRV3204-Q1 at www.ti.com/automotordriver-pr.

Evaluation modules (EVMs) are also available today for the DRV8801-Q1, DRV8823-Q1, DRV8832-Q1 and DRV8301-Q1.

Availability, packaging and pricing

3-phase, brushless, pre-FET motor drivers for safety-critical automotive applications:


-- DRV3202-Q1: Available in an HTQFP 80-pin package priced at US$3.80 in
1,000-unit quantities.
-- DRV3201-Q1: Available in an HTQFP 64-pin package priced at US$2.63 in
1,000-unit quantities.
-- DRV3204-Q1 and DRV3203-Q1: Grade 1 (Ta=125C) devices are available
immediately for ordering and Grade-0 (Ta=150C) devices will be available
in October 2013. Both Grade 1 and Grade 0 devices will be available in
an HTQFP 48-pin package. The DRV3204-Q1 is priced at US$2.63 for
100-unit quantities and the DRV3203-Q1 is available upon request.

These devices are available for immediate ordering at www.ti.com/automotordriver-pr.

Motor drivers for non-safety critical automotive applications:

-- DRV8801-Q1 brushed DC motor driver: Available now in a thin-profile
16-pin QFN package for enhanced thermal dissipation, priced at US$1.50.
-- DRV8823-Q1 quad brushed, dual stepper motor driver: Available now in a
48-pin HTSSOP package, priced at US$2.34.
-- DRV8832-Q1 brushed DC motor driver: Available now in a 10-pin MSOP
package, priced at US$1.00.
-- DRV8301-Q1 3-phase brushless motor pre-driver: Available in the fourth
quarter, 2013, the DRV8301-Q1 will come in a 56-pin HTSSOP package
priced at US$3.00.

SafeTI design packages and components


-- TI's SafeTI(TM) design packages help designers build safety-critical
systems that meet industry-standard safety requirements and also better
manage both systematic and random failures. Using SafeTI components
helps make it easier for customers to achieve safety certification and
get to market more quickly with their safety-critical systems
www.ti.com/safeti.

-- Hercules(TM) MCU platform consists of three ARM® Cortex(TM)-based
microcontroller families: TMS470M, TMS570 and RM4x, intended to help TI
customers design applications that meet IEC 61508 and ISO 26262
functional safety standards. The Hercules platform provides advanced
integrated safety features while delivering scalable performance,
connectivity and memory options: www.ti.com/hercules.

-- The TPS65381-Q1 is a multi-rail power supply designed to supply power to
microcontrollers in automotive safety-critical applications. This device
supports TI's TMS570LS series 16/32-bit RISC flash MCU and other
microcontrollers with dual-core lockstep (LS) or loosely coupled
architectures (LC), integrating multiple supply rails to power the MCU,
CAN or FlexRay, and an external sensor. TPS65381-Q1 helps TI customers
design automotive applications that meet IEC 61508 and ISO 26262
functional safety standards: www.ti.com/product/tps65381-q1.


Texas Instruments drives automotive innovation

TI's state-of-the-art semiconductor products allow manufacturers and system suppliers to deliver world-class features to the automotive market. Our extensive automotive portfolio includes analog power management, interface and signal chain solutions, along with DLP(®) displays, ADAS and infotainment processors, Hercules(TM) TMS570 microcontrollers and wireless connectivity solutions. TI offers SafeTI(TM) devices designed to help facilitate OEMs' compliance with the requirements of ISO 26262, as well as parts specifically designated as compliant with the AEC-Q100 and TS16949 standards, all with product documentation. Click here to learn more.

Find out more about TI's automotive and transportation portfolio by visiting the links below:


-- View TI's complete automotive and transportation portfolio:
www.ti.com/automotive-pr.
-- Download TI's Automotive and Transportation Selection Guide:
www.ti.com/automotiveguide-pr.
-- Join the TI E2E(TM) Automotive Community: www.ti.com/e2eautomotive-pr.
-- Keep up with the latest automotive happenings at TI:
www.ti.com/behindthewheel-pr.

Learn more about TI's motor control solutions by visiting the links below:


-- Ask questions, help solve problems in the Motor Drivers Forum in the TI
E2E(TM) Community: www.ti.com/e2emotor-pr.
-- Follow TI's motor experts in the Motor Solutions blog in the TI E2E
Community: www.ti.com/motorblog-pr.
-- Check out motor drive and control selection guides, training, videos,
application notes and block diagrams: www.ti.com/motor-pr.

About Texas Instruments

Texas Instruments Incorporated (TI) is a global semiconductor design and manufacturing company that develops analog ICs and embedded processors. By employing the world's brightest minds,

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