Data Sheet

ManualsBrandsPololu Manuals<10A DC ControllersDRV8835 Dual Motor Driver Carrier

PWM

VCC = 2 V to 7 V

VM = 0 V to 11 V

Controller

DRV8835

Stepper or

Brushed DC

Motor Driver

1.5 A

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

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.

DRV8835

SLVSB18G –MARCH 2012–REVISED MAY 2016

DRV8835 Dual Low-Voltage H-Bridge IC

1 Features

• Dual-H-Bridge Motor Driver

– Capable of Driving Two DC Motors or One

Stepper Motor

– Low-MOSFET ON-Resistance:

HS + LS 305 mΩ

• 1.5-A Maximum Drive Current Per H-Bridge

• Configure Bridges Parallel for 3-A Drive Current

• Separate Motor and Logic-Supply Pins:

– 0-V to 11-V Motor-Operating Supply-Voltage

– 2-V to 7-V Logic Supply-Voltage

• Separate Logic and Motor Power Supply Pins

• Flexible PWM or PHASE/ENABLE Interface

• Low-Power Sleep Mode With 95-nA Maximum

Supply Current

• Tiny 2.00-mm × 3.00-mm WSON Package

2 Applications

• Battery-Powered:

– Cameras

– DSLR Lenses

– Consumer Products

– Toys

– Robotics

– Medical Devices

3 Description

The DRV8835 provides an integrated motor driver

solution for cameras, consumer products, toys, and

other low-voltage or battery-powered motion control

applications. The device has two H-bridge drivers,

and drives two DC motors or one stepper motor, as

well as other devices like solenoids. The output driver

block for each consists of N-channel power

MOSFETs configured as an H-bridge to drive the

motor winding. An internal charge pump generates

gate drive voltages.

The DRV8835 supplies up to 1.5-A of output current

per H-bridge and operates on a motor power supply

voltage from 0 V to 11 V, and a device power supply

voltage of 2 V to 7 V.

PHASE/ENABLE and IN/IN interfaces are compatible

with industry-standard devices.

Internal shutdown functions are provided for

overcurrent protection, short circuit protection,

undervoltage lockout, and overtemperature.

The DRV8835 is packaged in a tiny 12-pin WSON

package (Eco-friendly: RoHS and no Sb/Br).

Device Information

(1)

PART NUMBER PACKAGE BODY SIZE (NOM)

DRV8835 WSON (12) 2.00 mm × 3.00 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Simplified Schematic

Summary of content (24 pages)

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Product Folder Sample & Buy Support & Community Tools & Software Technical Documents DRV8835 SLVSB18G – MARCH 2012 – REVISED MAY 2016 DRV8835 Dual Low-Voltage H-Bridge IC 1 Features 3 Description • The DRV8835 provides an integrated motor driver solution for cameras, consumer products, toys, and other low-voltage or battery-powered motion control applications. The device has two H-bridge drivers, and drives two DC motors or one stepper motor, as well as other devices like solenoids.
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DRV8835 SLVSB18G – MARCH 2012 – REVISED MAY 2016 www.ti.com Table of Contents 1 2 3 4 5 6 7 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Pin Configuration and Functions ......................... Specifications...................................................
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DRV8835 www.ti.com SLVSB18G – MARCH 2012 – REVISED MAY 2016 5 Pin Configuration and Functions DSS Package 12-Pin WSON Top View VM AOUT1 AOUT2 BOUT1 BOUT2 GND 1 12 2 11 3 GND Thermal pad 4 10 9 5 8 6 7 VCC MODE AIN1 / APHASE AIN2 / AENBL BIN1 / BPHASE BIN2 / BENBL Pin Functions PIN NAME NO. I/O (1) DESCRIPTION EXTERNAL COMPONENTS OR CONNECTIONS POWER AND GROUND GND, Thermal pad 6 — Device ground VM 1 — Motor supply Bypass to GND with a 0.
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DRV8835 SLVSB18G – MARCH 2012 – REVISED MAY 2016 www.ti.com 6 Specifications 6.1 Absolute Maximum Ratings (1) (2) See MIN MAX UNIT Power supply voltage, VM –0.3 12 V Power supply voltage, VCC –0.3 7 V Digital input pin voltage –0.5 VCC + 0.5 V Peak motor drive output current Internally limited Continuous motor drive output current per H-bridge (3) A –1.5 1.
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DRV8835 www.ti.com SLVSB18G – MARCH 2012 – REVISED MAY 2016 6.
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DRV8835 SLVSB18G – MARCH 2012 – REVISED MAY 2016 www.ti.com 6.6 Timing Requirements TA = 25°C, VM = 5 V, VCC = 3 V, RL = 20 Ω NO.
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DRV8835 www.ti.com SLVSB18G – MARCH 2012 – REVISED MAY 2016 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 -40 0.5 VCC = 0 V -40qC 25qC 85qC 0.45 Sleep Current, IVMQ (uA) VM Operating Current (IVMX) (mA) 6.7 Typical Characteristics 50 kHz, no load VCC = 2, VM = 2 VCC = 3, VM = 5 VCC = 7, VM = 11 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 -20 0 20 40 Temperautre (qC) 60 80 2 100 3 4 0.46 800 0.
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DRV8835 SLVSB18G – MARCH 2012 – REVISED MAY 2016 www.ti.com 7 Detailed Description 7.1 Overview The DRV8835 is an integrated motor-driver solution used for brushed motor control. The device integrates two H-bridges, and drives two DC motor or one stepper motor. The output driver block for each H-bridge consists of N-channel power MOSFETs. An internal charge pump generates the gate drive voltages.
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DRV8835 www.ti.com SLVSB18G – MARCH 2012 – REVISED MAY 2016 7.3 Feature Description 7.3.1 Protection Circuits The DRV8835 is fully protected against undervoltage, overcurrent, and overtemperature events. 7.3.1.1 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 disable.
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DRV8835 SLVSB18G – MARCH 2012 – REVISED MAY 2016 www.ti.com 7.4.1 Bridge Control Two control modes are available in the DRV8835: IN/IN mode, and PHASE/ENABLE mode. IN/IN mode is selected if the MODE pin is driven low or left unconnected; PHASE/ENABLE mode is selected if the MODE pin is driven to logic high. Table 3 and Table 4 show the logic for these modes. Table 3.
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DRV8835 www.ti.com SLVSB18G – MARCH 2012 – REVISED MAY 2016 8 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 8.
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DRV8835 SLVSB18G – MARCH 2012 – REVISED MAY 2016 www.ti.com 8.2.2 Detailed Design Procedure 8.2.2.1 Motor Voltage The appropriate motor voltage depends on the ratings of the motor selected and the desired RPM. A higher voltage spins a brushed DC motor faster with the same PWM duty cycle applied to the power FETs. A higher voltage also increases the rate of current change through the inductive motor windings. 8.2.2.
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DRV8835 www.ti.com SLVSB18G – MARCH 2012 – REVISED MAY 2016 9 Power Supply Recommendations 9.1 Bulk Capacitance The appropriate local bulk capacitance is an important factor in motor drive system design. More bulk capacitance is generally beneficial, but may increase costs and physical size.
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DRV8835 SLVSB18G – MARCH 2012 – REVISED MAY 2016 www.ti.com 10 Layout 10.1 Layout Guidelines The VCC pin should be bypassed to GND using low-ESR ceramic bypass capacitors with a recommended value of 0.1 μF rated for VCC. This capacitor should be placed as close to the VCC pin as possible with a thick trace. The VM pin should be bypassed to GND using low-ESR ceramic bypass capacitors with a recommended value of 0.1 μF rated for VM.
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DRV8835 www.ti.com SLVSB18G – MARCH 2012 – REVISED MAY 2016 Thermal Considerations (continued) NOTE RDS(on) increases with temperature, so as the device heats, the power dissipation increases. Consider this increase when sizing the heatsink. The power dissipation of the DRV8835 is a function of RMS motor current and the resistance of each FET (RDS(ON)), see Equation 2.
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DRV8835 SLVSB18G – MARCH 2012 – REVISED MAY 2016 www.ti.com 11 Device and Documentation Support 11.1 Documentation Support 11.1.1 Related Documentation For related documentation see the following: • Calculating Motor Driver Power Dissipation, SLVA504 • DRV8835/DRV8836 Evaluation Module, SLVU694 • Understanding Motor Driver Current Ratings, SLVA505 11.2 Community Resources The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors.
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PACKAGE OPTION ADDENDUM www.ti.com 22-Apr-2016 PACKAGING INFORMATION Orderable Device Status (1) DRV8835DSSR ACTIVE Package Type Package Pins Package Drawing Qty WSON DSS 12 3000 Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Op Temp (°C) Device Marking (4/5) -40 to 85 835 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 22-Apr-2016 TAPE AND REEL INFORMATION *All dimensions are nominal Device DRV8835DSSR Package Package Pins Type Drawing WSON DSS 12 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 3000 180.0 8.4 Pack Materials-Page 1 2.25 B0 (mm) K0 (mm) P1 (mm) 3.25 1.05 4.0 W Pin1 (mm) Quadrant 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 22-Apr-2016 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) DRV8835DSSR WSON DSS 12 3000 210.0 185.0 35.
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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.