Motor Driver. DRV8814 Datasheet

DRV8814 Driver. Datasheet pdf. Equivalent

Part DRV8814
Description DC Motor Driver
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DRV8814
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Sample &
Buy
Technical
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DRV8814
SLVSAB9E – MAY 2010 – REVISED NOVEMBER 2015
DRV8814 DC Motor Driver IC
1 Features
1 8 V to 45 V Operating Supply Voltage Range
• 2.5 A Maximum Drive Current at 24 V and TA =
25°C
• Dual H-Bridge Current-Control Motor Driver
– Drives Two DC Motors
– Four Level Winding Current Control
• Multiple Decay Modes
– Slow Decay
– Fast Decay
• Industry Standard Parallel Digital Control Interface
• Low Current Sleep Mode
• Built-In 3.3-V Reference Output
• Small Package and Footprint
• Protection Features
– Overcurrent Protection (OCP)
– Thermal Shutdown (TSD)
– VM Undervoltage Lockout (UVLO)
– Fault Condition Indication Pin (nFAULT)
2 Applications
• Printers
• Scanners
• Office Automation Machines
• Gaming Machines
• Factory Automation
• Robotics
3 Description
The DRV8814 provides an integrated motor driver
solution for printers, scanners, and other automated
equipment applications. The device has two H-bridge
drivers, and is intended to drive DC motors. The
output driver block for each consists of N-channel
power MOSFET’s configured as H-bridges to drive
the motor windings. The DRV8814 can supply up to
2.5-A peak or 1.75-A RMS output current (with proper
heatsinking at 24 V and 25°C) per H-bridge.
A simple parallel digital control interface is compatible
with industry-standard devices. Decay mode is
programmable to allow braking or coasting of the
motor when disabled.
Internal shutdown functions are provided for over
current protection, short circuit protection, under
voltage lockout, and over temperature.
The DRV8814 is available in a 28-pin HTSSOP
package with PowerPAD™ (Eco-friendly: RoHS & no
Sb/Br).
PART NUMBER
DRV8814
Device Information(1)
PACKAGE
BODY SIZE (NOM)
HTSSOP (28)
9.70 mm x 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Simplified Schematic
8 V to 45 V
PHASE
DRV8814
ENBL
2.5 A M
Decay Mode Stepper
Current Lvl
Motor
nFAULT
Driver
2.5 A M
Current
Control
1
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.



DRV8814
DRV8814
SLVSAB9E – MAY 2010 – REVISED NOVEMBER 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 5
6.1 Absolute Maximum Ratings ...................................... 5
6.2 ESD Ratings.............................................................. 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics........................................... 6
6.6 Typical Characteristics .............................................. 7
7 Detailed Description .............................................. 8
7.1 Overview ................................................................... 8
7.2 Functional Block Diagram ......................................... 8
7.3 Feature Description................................................... 9
7.4 Device Functional Modes........................................ 10
8 Application and Implementation ........................ 13
8.1 Application Information............................................ 13
8.2 Typical Application .................................................. 13
9 Power Supply Recommendations...................... 15
9.1 Bulk Capacitance .................................................... 15
9.2 Power Supply and Logic Sequencing ..................... 15
10 Layout................................................................... 16
10.1 Layout Guidelines ................................................. 16
10.2 Layout Example .................................................... 16
10.3 Thermal Considerations ........................................ 16
11 Device and Documentation Support ................. 18
11.1 Documentation Support ........................................ 18
11.2 Community Resources.......................................... 18
11.3 Trademarks ........................................................... 18
11.4 Electrostatic Discharge Caution ............................ 18
11.5 Glossary ................................................................ 18
12 Mechanical, Packaging, and Orderable
Information ........................................................... 18
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision D (August 2013) to Revision E
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section ................................................................................................. 1
2
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