SLVSD19A
June 2015 – July 2015
DRV8881
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
DRV8881E Simplified System Diagram
DRV8881P Simplified System Diagram
4
Revision History
5
Pin Configuration and Functions
Pin Functions
DRV8881E PH/EN Pin Functions
DRV8881P PWM Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagrams
7.3
Feature Description
7.3.1
Motor Driver Current Ratings
7.3.1.1
Peak Current Rating
7.3.1.2
RMS Current Rating
7.3.1.3
Full-Scale Current Rating
7.3.2
PWM Motor Drivers
7.3.3
Bridge Control
7.3.4
Current Regulation
7.3.5
Decay Modes
7.3.5.1
Mode 1: Slow Decay
7.3.5.2
Mode 2: Fast Decay
7.3.5.3
Mode 3: 30%/70% Mixed Decay
7.3.6
Smart tune
7.3.7
Adaptive Blanking Time
7.3.8
Parallel Mode
7.3.9
Charge Pump
7.3.10
LDO Voltage Regulator
7.3.11
Logic and Tri-Level Pin Diagrams
7.3.12
Protection Circuits
7.3.12.1
VM Undervoltage Lockout (UVLO)
7.3.12.2
VCP UVLO (CPUV)
7.3.12.3
Overcurrent Protection (OCP)
7.3.12.4
Thermal Shutdown (TSD)
7.4
Device Functional Modes
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
DRV8881P Typical Application
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Current Regulation
8.2.1.2.2
Stepper Motor Speed
8.2.1.2.3
Decay Modes
8.2.1.2.4
Sense Resistor
8.2.1.3
Application Curve
8.2.2
Alternate Application
8.2.2.1
Design Requirements
8.2.2.2
Detailed Design Procedure
8.2.2.2.1
Current Regulation
8.2.2.3
Application Curves
9
Power Supply Recommendations
9.1
Bulk Capacitance Sizing
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
Community Resources
11.3
Trademarks
11.4
Electrostatic Discharge Caution
11.5
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
PWP|28
MPDS373B
RHR|28
MPQF243A
Thermal pad, mechanical data (Package|Pins)
PWP|28
PPTD124Q
RHR|28
QFND246D
Orderable Information
slvsd19a_oa
slvsd19a_pm
Device Images
DRV8881E Simplified System Diagram
DRV8881P Simplified System Diagram