DRV8881 Driver Datasheet

DRV8881 Datasheet, PDF, Equivalent


Part Number

DRV8881

Description

2.5-A Dual H-Bridge Motor Driver

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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DRV8881
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DRV8881
SLVSD19A – JUNE 2015 – REVISED JULY 2015
DRV8881 2.5-A Dual H-Bridge Motor Driver
1 Features
1 Dual H-Bridge Motor Driver
– Bipolar Stepper Motor Driver
– Single or Dual Brushed-DC Motor Driver
• 6.5- to 45-V Operating Supply Voltage Range
• Two Control Interface Options
– PHASE/ENABLE (DRV8881E)
PWM (DRV8881P)
• Multiple Decay Modes to Support Any Motor
– AutoTune™ (DRV8881E Only)
– Mixed Decay
– Slow Decay
– Fast Decay
• Adaptive Blanking Time for Smooth Motion
• Parallel Mode Operation (DRV8881P Only)
• Configurable Off-Time PWM Chopping
– 10, 20, or 30 μs Off-Time
• 3.3-V, 10-mA LDO Regulator
• Low-Current Sleep Mode (28 µA)
• Small Package and Footprint
– 28 HTSSOP (PowerPAD)
– 28 WQFN (PowerPAD)
SPACE
Protection Features
– VM Undervoltage Lockout (UVLO)
– Charge Pump Undervoltage (CPUV)
– Overcurrent Protection (OCP)
– Automatic OCP Retry
– Thermal Shutdown (TSD)
– Fault Condition Indication Pin (nFAULT)
2 Applications
• Automatic Teller and Money Handling Machines
• Video Security Cameras
• Multi-Function Printers and Document Scanners
• Factory Automation and Robotics
• Stage Lighting Equipment
3 Description
The DRV8881 is a bipolar stepper or brushed-DC
motor driver for industrial applications. The device
output stage consists of two N-channel power
MOSFET H-bridge drivers. The DRV8881 is capable
of driving up to 2.5-A peak current or 1.4-A rms
current per H-bridge (with proper PCB ground plane
for thermal dissipation and at 24 V and TA = 25°C).
AutoTune™ automatically tunes motors for optimal
current regulation performance and compensates for
motor variation and aging effects. AutoTune is
available on the DRV8881E. Additionally, slow, fast,
and mixed decay modes are available.
The PH/EN (DRV8881E) or PWM (DRV8881P) pins
provide a simple control interface. An internal sense
amplifier allows for adjustable current control. A low-
power sleep mode is provided for very-low quiescent
current standby using a dedicated nSLEEP pin.
Internal protection functions are provided for
undervoltage, charge pump faults, overcurrent, short-
circuits, and overtemperature. Fault conditions are
indicated by a nFAULT pin.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DRV8881
HTSSOP (28)
WQFN (28)
9.70 mm × 6.40 mm
5.50 mm × 3.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
DRV8881E Simplified System Diagram
6.5 to 45 V
DRV8881P Simplified System Diagram
6.5 to 45 V
APH/AEN
BPH/BEN
Current scalar
Decay mode
DRV8881E
2.5 A BBDDCC
Dual
H-Bridge
Motor Driver
µš}dµv ¡
2.5 A BBDDCC
STEPPER
+-
AIN1/AIN2
BIN1/BIN2
Current scalar
Decay mode
DRV8881P
2.5 A BBDDCC
Dual
H-Bridge
Motor Driver
Parallel Mode
2.5 A BBDDCC
STEPPER
+-
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.

DRV8881
DRV8881
SLVSD19A – JUNE 2015 – REVISED JULY 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....................... 6
6.4 Thermal Information .................................................. 6
6.5 Electrical Characteristics........................................... 7
6.6 Typical Characteristics .............................................. 9
7 Detailed Description ............................................ 11
7.1 Overview ................................................................. 11
7.2 Functional Block Diagrams ..................................... 12
7.3 Feature Description................................................. 14
7.4 Device Functional Modes........................................ 26
8 Application and Implementation ........................ 27
8.1 Application Information............................................ 27
8.2 Typical Applications ................................................ 27
9 Power Supply Recommendations...................... 33
9.1 Bulk Capacitance Sizing ......................................... 33
10 Layout................................................................... 34
10.1 Layout Guidelines ................................................. 34
10.2 Layout Example .................................................... 34
11 Device and Documentation Support ................. 35
11.1 Documentation Support ........................................ 35
11.2 Community Resources.......................................... 35
11.3 Trademarks ........................................................... 35
11.4 Electrostatic Discharge Caution ............................ 35
11.5 Glossary ................................................................ 35
12 Mechanical, Packaging, and Orderable
Information ........................................................... 35
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (June 2015) to Revision A
Page
• Updated device status to production data ............................................................................................................................. 1
• Updated from "PowerPAD" to "thermal pad" ......................................................................................................................... 4
• Corrected ATE pin number for RHR package to 23............................................................................................................... 4
2 Submit Documentation Feedback
Product Folder Links: DRV8881
Copyright © 2015, Texas Instruments Incorporated


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity DRV8881 SLVSD19A – JUNE 2015 – REVISED JULY 2015 DRV8881 2.5-A Dua l H-Bridge Motor Driver 1 Features • 1 Dual H-Bridge Motor Driver – Bipola r Stepper Motor Driver – Single or Du al Brushed-DC Motor Driver • 6.5- to 45-V Operating Supply Voltage Range • Two Control Interface Options – PHAS E/ENABLE (DRV8881E) – PWM (DRV8881P) • Multiple Decay Modes to Support Any Motor – AutoTune™ (DRV8881E Only) – Mixed Decay – Slow Decay – Fast Decay • Adaptive Blanking Time for S mooth Motion • Parallel Mode Operatio n (DRV8881P Only) • Configurable Off- Time PWM Chopping – 10, 20, or 30 μs Off-Time • 3.3-V, 10-mA LDO Regulato r • Low-Current Sleep Mode (28 µA) Small Package and Footprint – 28 H TSSOP (PowerPAD) – 28 WQFN (PowerPAD) SPACE • Protection Features – VM U ndervoltage Lockout (UVLO) – Charge P ump Undervoltage (CPUV) – Overcurrent Protection (OCP) – Automatic OCP Retry – Thermal Shutdown (TSD) – Fault Condition.
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