SLES242G
December 2009 – December 2014
DRV8412
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Simplified Application Diagram
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
Package Heat Dissipation Ratings
6.6
Package Power Deratings (DRV8412)
6.7
Electrical Characteristics
6.8
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Error Reporting
7.3.2
Device Protection System
7.3.2.1
Bootstrap Capacitor Undervoltage Protection
7.3.2.2
Overcurrent (OC) Protection
7.3.2.3
Overtemperature Protection
7.3.2.4
Undervoltage Protection (UVP) and Power-On Reset (POR)
7.3.3
Device Reset
7.4
Device Functional Modes
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Full Bridge Mode Operation
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Motor Voltage
8.2.1.2.2
Current Requirement of 12-V Power Supply
8.2.1.2.3
Voltage of Decoupling Capacitor
8.2.1.2.4
Overcurrent Threshold
8.2.1.2.5
Sense Resistor
8.2.1.3
Application Curves
8.2.2
Parallel Full Bridge Mode Operation
8.2.3
Stepper Motor Operation
8.2.4
TEC Driver
8.2.5
LED Lighting Driver
9
Power Supply Recommendations
9.1
Bulk Capacitance
9.2
Power Supplies
9.3
System Power-Up and Power-Down Sequence
9.3.1
Powering Up
9.3.2
Powering Down
9.4
System Design Recommendations
9.4.1
VREG Pin
9.4.2
VDD Pin
9.4.3
OTW Pin
9.4.4
Mode Select Pin
9.4.5
Parallel Mode Operation
9.4.6
TEC Driver Application
10
Layout
10.1
Layout Guidelines
10.1.1
PCB Material Recommendation
10.1.2
Ground Plane
10.1.3
Decoupling Capacitor
10.1.4
AGND
10.2
Layout Example
10.2.1
Current Shunt Resistor
10.3
Thermal Considerations
10.3.1
DRV8412 Thermal Via Design Recommendation
11
Device and Documentation Support
11.1
Related Links
11.2
Trademarks
11.3
Electrostatic Discharge Caution
11.4
Glossary
12
Mechanical, Packaging, and Orderable Information
8.2.4
TEC Driver
Figure 17.
Application Diagram Example for TEC Driver Schematic