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DRV8824

www.ti.com

SLVSA06G –OCTOBER 2009–REVISED AUGUST 2013

STEPPER MOTOR CONTROLLER IC

Check for Samples: DRV8824

FEATURES

APPLICATIONS

• PWM Microstepping Motor Driver

• Automatic Teller Machines

– Built-In Microstepping Indexer • Money Handling Machines

– Five-Bit Winding Current Control Allows Up • Video Security Cameras

to 32 Current Levels

• Printers

– Low MOSFET On-Resistance

• Scanners

• 1.6-A Maximum Drive Current at 24 V, 25°C

• Office Automation Machines

• Built-In 3.3-V Reference Output

• Gaming Machines

• 8.2-V to 45-V Operating Supply Voltage Range

• Factory Automation

• Thermally Enhanced HTSSOP and QFN

• Robotics

Surface Mount Packages

DESCRIPTION

The DRV8824 provides an integrated motor driver solution for printers, scanners, and other automated

equipment applications. The device has two H-bridge drivers and a microstepping indexer, and is intended to

drive a bipolar stepper motor. The output driver block for each consists of N-channel power MOSFET’s

configured as full H-bridges to drive the motor windings. The DRV8824 is capable of driving up to 1.6-A of output

current (with proper heatsinking, at 24 V and 25°C).

A simple step/direction interface allows easy interfacing to controller circuits. Pins allow configuration of the

motor in full-step up to 1/32-step modes. Decay mode is programmable.

Internal shutdown functions are provided for overcurrent protection, short circuit protection, undervoltage lockout

and overtemperature.

The DRV8824 is available in a 28-pin HTSSOP package with PowerPAD™ and in a 28-pin QFN package

PowerPAD™ (Eco-friendly: RoHS & no Sb/Br).

ORDERING INFORMATION

(1)

ORDERABLE PART TOP-SIDE

PACKAGE

(2)

NUMBER MARKING

Reel of 2000 DRV8824PWPR

PowerPAD™ (HTSSOP) - PWP

Tube of 50 DRV8824PWP

–40°C to 85°C DRV8824

Reel of 3000 DRV8824RHDR

PowerPAD™ (QFN) - RHD

Reel of 250 DRV8824RHDT

(1) For the most current packaging and ordering information, see the Package Option Addendum at the end of this document, or see the TI

web site at www.ti.com.

(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

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.

2PowerPAD is a trademark of Texas Instruments.

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.

Summary of content (26 pages)

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DRV8824 www.ti.com SLVSA06G – OCTOBER 2009 – REVISED AUGUST 2013 STEPPER MOTOR CONTROLLER IC Check for Samples: DRV8824 FEATURES APPLICATIONS • • • • • • • • • • 1 2 • • • • PWM Microstepping Motor Driver – Built-In Microstepping Indexer – Five-Bit Winding Current Control Allows Up to 32 Current Levels – Low MOSFET On-Resistance 1.6-A Maximum Drive Current at 24 V, 25°C Built-In 3.3-V Reference Output 8.
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DRV8824 SLVSA06G – OCTOBER 2009 – REVISED AUGUST 2013 www.ti.com DEVICE INFORMATION Functional Block Diagram VM VM CP1 Int. VCC Internal Reference & LS Gate Regs Drive 0.01mF CP2 VM Charge Pump V3P3OUT 3.3V VCP 0.1mF 3.
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DRV8824 www.ti.com SLVSA06G – OCTOBER 2009 – REVISED AUGUST 2013 Table 1. TERMINAL FUNCTIONS NAME PIN PWP RHD I/O (1) EXTERNAL COMPONENTS OR CONNECTIONS DESCRIPTION POWER AND GROUND GND 14, 28 3, 17 - Device ground VMA 4 7 - Bridge A power supply VMB 11 14 - Bridge B power supply V3P3OUT 15 18 O 3.3-V regulator output CP1 1 4 IO Charge pump flying capacitor CP2 2 5 IO Charge pump flying capacitor VCP 3 6 IO High-side gate drive voltage Connect a 0.
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DRV8824 SLVSA06G – OCTOBER 2009 – REVISED AUGUST 2013 www.ti.
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DRV8824 www.ti.com SLVSA06G – OCTOBER 2009 – REVISED AUGUST 2013 ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) VMx VREF (1) (2) VALUE UNIT Power supply voltage range –0.3 to 47 V Digital pin voltage range –0.5 to 7 V Input voltage –0.3 to 4 V –0.3 to 0.8 V Peak motor drive output current, t < 1 μS Internally limited A Continuous motor drive output current (3) 1.
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DRV8824 SLVSA06G – OCTOBER 2009 – REVISED AUGUST 2013 www.ti.com ELECTRICAL CHARACTERISTICS over operating free-air temperature range of -40°C to 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT POWER SUPPLIES IVM VM operating supply current VM = 24 V, fPWM < 50 kHz 5 8 mA IVMQ VM sleep mode supply current VM = 24 V 10 20 μA VUVLO VM undervoltage lockout voltage VM rising 7.8 8.
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DRV8824 www.ti.com SLVSA06G – OCTOBER 2009 – REVISED AUGUST 2013 ELECTRICAL CHARACTERISTICS (continued) over operating free-air temperature range of -40°C to 85°C (unless otherwise noted) PARAMETER ΔITRIP AISENSE Current trip accuracy (relative to programmed value) Current sense amplifier gain TEST CONDITIONS MIN TYP MAX xVREF = 3.3 V , 5% current setting –25 25 xVREF = 3.3 V , 10% - 34% current setting –15 15 xVREF = 3.3 V, 38% - 67% current setting –10 10 xVREF = 3.
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DRV8824 SLVSA06G – OCTOBER 2009 – REVISED AUGUST 2013 www.ti.com FUNCTIONAL DESCRIPTION PWM Motor Drivers The DRV8824 contains two H-bridge motor drivers with current-control PWM circuitry. A block diagram of the motor control circuitry is shown in Figure 2. Figure 2. Motor Control Circuitry Note that there are multiple VM motor power supply pins. All VM pins must be connected together to the motor supply voltage.
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DRV8824 www.ti.com SLVSA06G – OCTOBER 2009 – REVISED AUGUST 2013 Current Regulation The current through the motor windings is regulated by a fixed-frequency PWM current regulation, or current chopping. When an H-bridge is enabled, current rises through the winding at a rate dependent on the DC voltage and inductance of the winding. Once the current hits the current chopping threshold, the bridge disables the current until the beginning of the next PWM cycle.
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DRV8824 SLVSA06G – OCTOBER 2009 – REVISED AUGUST 2013 www.ti.com The DRV8824 supports fast decay, slow decay and a mixed decay mode. Slow, fast, or mixed decay mode is selected by the state of the DECAY pin - logic low selects slow decay, open selects mixed decay operation, and logic high sets fast decay mode. The DECAY pin has both an internal pullup resistor of approximately 130 kΩ and an internal pulldown resistor of approximately 80 kΩ.
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DRV8824 www.ti.com SLVSA06G – OCTOBER 2009 – REVISED AUGUST 2013 Table 3.
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DRV8824 SLVSA06G – OCTOBER 2009 – REVISED AUGUST 2013 www.ti.com Table 3.
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DRV8824 www.ti.com SLVSA06G – OCTOBER 2009 – REVISED AUGUST 2013 Table 3.
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DRV8824 SLVSA06G – OCTOBER 2009 – REVISED AUGUST 2013 www.ti.com Overcurrent Protection (OCP) An analog current limit circuit on each FET limits the current through the FET by removing the gate drive. If this analog current limit persists for longer than the OCP time, all FETs in the H-bridge will be disabled and the nFAULT pin will be driven low. The device will remain disabled until either nRESET pin is applied, or VM is removed and re-applied.
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DRV8824 www.ti.com SLVSA06G – OCTOBER 2009 – REVISED AUGUST 2013 THERMAL INFORMATION Thermal Protection The DRV8824 has thermal shutdown (TSD) as described above. If the die temperature exceeds approximately 150°C, the device will be disabled until the temperature drops to a safe level. Any tendency of the device to enter TSD is an indication of either excessive power dissipation, insufficient heatsinking, or too high an ambient temperature.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 13-Aug-2013 continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
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PACKAGE MATERIALS INFORMATION www.ti.com 13-Aug-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant DRV8824PWPR HTSSOP PWP 28 2000 330.0 16.4 6.9 10.2 1.8 12.0 16.0 Q1 DRV8824RHDR VQFN RHD 28 3000 330.0 DRV8824RHDT VQFN RHD 28 250 180.0 12.4 5.3 5.3 1.5 8.0 12.0 Q2 12.4 5.3 5.3 1.5 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 13-Aug-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) DRV8824PWPR HTSSOP PWP 28 2000 367.0 367.0 38.0 DRV8824RHDR VQFN RHD 28 3000 367.0 367.0 35.0 DRV8824RHDT VQFN RHD 28 250 552.0 154.0 36.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.