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DRV8889-Q1 Datasheet(PDF) 1 Page - Texas Instruments

Part No. DRV8889-Q1
Description  DRV8889-Q1, DRV8889A-Q1 Automotive Stepper Driver with Integrated Current Sense, 1/256 Micro-Stepping, and Stall Detection
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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DRV8889-Q1 Datasheet(HTML) 1 Page - Texas Instruments

 
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DRV8889-Q1, DRV8889A-Q1 Automotive Stepper Driver with Integrated Current
Sense, 1/256 Micro-Stepping, and Stall Detection
1 Features
• AEC-Q100 Qualified for Automotive
• Up to 1/256 microstepping
• Integrated current sense functionality
– No sense resistors required
• Smart tune decay technology,
Fixed slow, and mixed decay options
• 4.5 to 45-V Operating supply voltage range
• Pin to pin RDS(ON) variants:
- DRV8889/A-Q1: 900 mΩ HS + LS at 25°C
- DRV8899-Q1: 1200 mΩ HS + LS at 25°C
• High current capacity per bridge
– DRV8889/A-Q1: 2.4-A peak, 1.5-A full-scale
– DRV8899-Q1: 1.7-A peak, 1-A full-scale
• TRQ_DAC bits to scale full-scale current
• Configurable off-time PWM chopping
– 7-μs, 16-μs, 24-μs, or 32-μs.
• Simple STEP/DIR interface
• SPI with daisy chain support
• Low-current sleep mode (2 μA)
• Programmable output slew rate
• Programmable open load detection time with
DRV8889A-Q1
• Spread spectrum clocking to minimize EMI
• Protection features
– VM undervoltage lockout
– Overcurrent protection
– Stall detection
– Open load detection
– Overtemperature warning and shutdown
– Undertemperature warning
– Fault condition indication pin (nFAULT)
2 Applications
• Automotive bipolar stepper motors
• Headlight position adjustment
• Head-up display (HUD)
• HVAC stepper motors
• Electronic fuel injection (EFI)
3 Description
The DRV8889-Q1 and DRV8889A-Q1 are fully
integrated stepper motor drivers, supporting up to 1.5
A full scale current with an internal microstepping
indexer, smart tune decay technology, advanced stall
detection algorithm, and integrated current sensing.
With a simple step/dir interface, the device supports
up to 1/256 levels of microstepping to enable a
smooth motion profile. Integrated current sensing
eliminates the need for two external resistors, saving
board space and cost. With advanced stall detection
algorithm, designers can detect if the motor stopped
and take action as needed which can improve
efficiency and reduce noise. The device provides 8
decay mode options including: smart tune, slow, and
mixed decay options. Smart tune automatically
adjusts for optimal current regulation performance.
The device also includes an integrated torque DAC
which allows for the controller to scale the output
current through SPI without needing to scale the
VREF voltage reference. A low-power sleep mode is
provided using an nSLEEP pin. The device features
full duplex, 4-wire synchronous SPI communication,
with daisy chain support for up to 63 devices
connected in series, for configurability and detailed
fault reporting.
View our full portfolio of stepper motor drivers on
ti.com
Device Information
PART NUMBER (1)
PACKAGE
BODY SIZE (NOM)
DRV8889QPWPRQ1
HTSSOP (24)
7.80 mm × 4.40 mm
DRV8889QWRGERQ1
VQFN (24)
(Wettable Flank)
4.00 mm × 4.00 mm
DRV8889AQPWPRQ1
HTSSOP (24)
7.80 mm × 4.40 mm
DRV8889AQWRGERQ1
VQFN (24)
(Wettable Flank)
4.00 mm × 4.00 mm
(1)
For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
www.ti.com
DRV8889-Q1
SLVSEE9C – APRIL 2020 – REVISED AUGUST 2020
Copyright © 2020 Texas Instruments Incorporated
Submit Document Feedback
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Product Folder Links: DRV8889-Q1
DRV8889-Q1
SLVSEE9C – APRIL 2020 – REVISED AUGUST 2020
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


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