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DRV8844

www.ti.com

SLVSBA2A –JULY 2012–REVISED OCTOBER 2012

QUAD 1/2-H-BRIDGE DRIVER IC

Check for Samples: DRV8844

FEATURES

• Quad 1/2-H-Bridge DC Motor Driver

• 8-V to 60-V Operating Supply Voltage Range

– Can Drive Four Solenoids, Two DC Motors, • Thermally Enhanced Surface Mount Package

One Stepper Motor, or Other Loads

APPLICATIONS

– Full Individual Half Bridge Control

• Textile Machines

– Low MOSFET On-Resistance

• Office Automation Machines

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

• Gaming Machines

• Floating Input Buffers Allow Dual (Bipolar)

Supplies (up to ±30 V)

• Factory Automation

• Built-In 3.3-V, 10-mA LDO Regulator

• Robotics

• Industry Standard IN/IN Digital Control

Interface

DESCRIPTION

The DRV8844 provides four individually controllable 1/2-H-bridge drivers. It can be used to drive two DC motors,

one stepper motor, four solenoids, or other loads. The output driver channel for each channel consists of N-

channel power MOSFET’s configured in a 1/2-H-bridge configuration.

The DRV8844 can supply up to 2.5-A peak or 1.75-A RMS output current per channel (with proper PCB

heatsinking at 24 V and 25°C) per H-bridge.

Separate inputs to independently control each 1/2-H-bridge are provided. To allow operation with split supplies,

the logic inputs and nFAULT output are referenced to a separate floating ground pin.

Internal shutdown functions are provided for over current protection, short circuit protection, under voltage

lockout and overtemperature.

The DRV8844 is available in a 28-pin HTSSOP package with PowerPAD™ (Eco-friendly: RoHS & no Sb/Br).

ORDERING INFORMATION

(1)

ORDERABLE PART TOP-SIDE

PACKAGE

(2)

NUMBER MARKING

Reel of 2000 DRV8844PWPR

–40°C to 85°C PowerPAD™ (HTSSOP) - PWP DRV8844

Tube of 50 DRV8844PWP

(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 (17 pages)

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DRV8844 www.ti.com SLVSBA2A – JULY 2012 – REVISED OCTOBER 2012 QUAD 1/2-H-BRIDGE DRIVER IC Check for Samples: DRV8844 FEATURES 1 • 2 • • • • Quad 1/2-H-Bridge DC Motor Driver – Can Drive Four Solenoids, Two DC Motors, One Stepper Motor, or Other Loads – Full Individual Half Bridge Control – Low MOSFET On-Resistance 2.5-A Maximum Drive Current at 24 V, 25°C Floating Input Buffers Allow Dual (Bipolar) Supplies (up to ±30 V) Built-In 3.
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DRV8844 SLVSBA2A – JULY 2012 – REVISED OCTOBER 2012 www.ti.com DEVICE INFORMATION Functional Block Diagram VM Internal Reference & Regs VM Int. VCC CP1 LS Gate Drive 0.01uF Charge Pump V3P3OUT CP2 VM VCP Thermal Shut down 0.
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DRV8844 www.ti.com SLVSBA2A – JULY 2012 – REVISED OCTOBER 2012 Table 1. TERMINAL FUNCTIONS NAME PIN I/O (1) EXTERNAL COMPONENTS OR CONNECTIONS DESCRIPTION POWER AND GROUND VNEG 6, 9, 14, 28, PPAD - Negative power supply (dual supplies) or ground (single supply) LGND 19 I Logic input reference ground Connect to logic ground. This may be any voltage between VNEG and VM - 8 V. 4, 11 - Main power supply Connect to motor supply (8 V - 60 V). Both pins must be connected to same supply.
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DRV8844 SLVSBA2A – JULY 2012 – REVISED OCTOBER 2012 CP1 CP2 VCP VM OUT1 VNEG OUT2 OUT3 VNEG OUT4 VM NC NC VNEG www.ti.com 1 2 3 4 5 6 7 GND (PPAD) 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 VNEG IN1 EN1 IN2 EN2 IN3 EN3 IN4 EN4 LGND nFAULT nSLEEP nRESET V3P3OUT ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range, all voltages relative to VNEG terminal (unless otherwise noted) VM Power supply voltage range (1) (2) VALUE UNIT –0.3 to 65 V –0.
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DRV8844 www.ti.com SLVSBA2A – JULY 2012 – REVISED OCTOBER 2012 RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range, all voltages relative to VNEG terminal (unless otherwise noted) MIN VM Motor power supply voltage range IV3P3 V3P3OUT load current (1) (1) NOM MAX UNIT 8 60 V 0 10 mA All VM pins must be connected to the same supply voltage.
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DRV8844 SLVSBA2A – JULY 2012 – REVISED OCTOBER 2012 www.ti.
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DRV8844 www.ti.com SLVSBA2A – JULY 2012 – REVISED OCTOBER 2012 FUNCTIONAL DESCRIPTION Output Stage The DRV8844 contains four 1/2-H-bridge drivers using N-channel MOSFETs. A block diagram of the output circuitry is shown in Figure 2. VM VM VM Predrive IN1 EN1 OUT 1 OCP IN2 EN2 IN3 EN3 Predrive IN4 EN4 OUT2 OCP Logic Predrive OUT 3 OCP Predrive OUT4 OCP Figure 2. Motor Control Circuitry The output pins are driven between VM and VNEG.
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DRV8844 SLVSBA2A – JULY 2012 – REVISED OCTOBER 2012 www.ti.com Table 2. H-Bridge Logic INx ENx OUTx X 0 Z 0 1 L 1 1 H The inputs can also be used for PWM control of, for example, the speed of a DC motor. When controlling a winding with PWM, when the drive current is interrupted, the inductive nature of the motor requires that the current must continue to flow. This is called recirculation current.
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DRV8844 www.ti.com SLVSBA2A – JULY 2012 – REVISED OCTOBER 2012 VM VM 10uF CP1 0.01uF 100V CP2 Charge Pump VCP 0.1uF 16V To pre-drivers Figure 4. Charge Pump nRESET and nSLEEP Operation The nRESET pin, when driven active low, resets the internal logic. It also disables the H-bridge drivers. All inputs are ignored while nRESET is active. Driving nSLEEP low will put the device into a low power sleep state.
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DRV8844 SLVSBA2A – JULY 2012 – REVISED OCTOBER 2012 www.ti.com THERMAL INFORMATION Thermal Protection The SDRV8844 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 MATERIALS INFORMATION www.ti.com 26-Jan-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device DRV8844PWPR Package Package Pins Type Drawing SPQ HTSSOP 2000 PWP 28 Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 330.0 16.4 Pack Materials-Page 1 6.9 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 10.2 1.8 12.0 16.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) DRV8844PWPR HTSSOP PWP 28 2000 367.0 367.0 38.
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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.