SLLSEK2A
June 2014 – March 2017
DRV8846
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Schematic
4
Revision History
5
Pin Configuration and Functions
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
Timing Requirements
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
PWM Motor Drivers
7.3.2
Micro-Stepping Indexer
7.3.3
Current Regulation
7.3.4
Decay Mode
7.3.5
Blanking Time
7.3.6
Protection Circuits
7.3.6.1
Overcurrent Protection (OCP)
7.3.6.2
Thermal Shutdown (TSD)
7.3.6.3
Undervoltage Lockout (UVLO)
7.4
Device Functional Modes
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Stepper Motor Speed
8.2.2.2
Current Regulation
8.2.2.3
Decay Modes
8.2.3
Application Curves
9
Power Supply Recommendations
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
Receiving Notification of Documentation Updates
11.3
Community Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RGE|24
MPQF124G
Thermal pad, mechanical data (Package|Pins)
RGE|24
QFND008AA
Orderable Information
sllsek2a_oa
sllsek2a_pm
1
Features
PWM Microstepping Motor Driver
Built-In Microstepping Indexer
Up to 1/32 Microstepping
Step/Direction Control
Multiple Decay Modes
Smart tune Technology
Mixed Decay
Slow Decay
Fast Decay
Configurable Off-Time PWM Chopping
10-, 20-, or 30-μs Off-Time
Adaptive Blanking Time for Smooth Stepping
4- to 18-V Operating Supply Voltage Range
1.4-A (Full Scale (Max Drive) Current per H-Bridge (at 25°C)
Low-Current Sleep Mode
3-Bit Torque DAC to Scale Motor Current
Thermally Enhanced Surface Mount Package
Protection Features
VM Undervoltage Lockout (UVLO)
Overcurrent Protection (OCP)
Thermal Shutdown (TSD)
Fault Condition Indication Pin (nFAULT)