SLES256F
May 2010 – May 2022
DRV8312
,
DRV8332
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Dissipation Ratings
6.6
Power Deratings (DRV8312)
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
7.3.2.1.1
Overcurrent (OC) Protection
7.3.2.2
Overtemperature Protection
7.3.2.3
Undervoltage Protection (UVP) and Power-On Reset (POR)
7.3.2.4
Device Reset
7.4
Device Functional Modes
7.4.1
Different Operational Modes
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Three-Phase 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
8.2.1.2.6
Output Inductor Selection
8.2.1.3
Application Curves
8.2.2
DRV8312 Application Diagram for Three-Phase Operation
8.2.3
Control Signal Logic With Conventional 6 PWM Input Scheme
8.2.4
Hall Sensor Control With 6 Steps Trapezoidal Scheme
8.2.5
Sensorless Control With 6 Steps Trapezoidal Scheme
9
Power Supply Recommendations
9.1
Bulk Capacitance
9.2
System Power-Up and Power-Down Sequence
9.2.1
Powering Up
9.2.2
Powering Down
9.3
System Design Recommendations
9.3.1
VREG Pin
9.3.2
VDD Pin
9.3.3
OTW Pin
9.3.4
FAULT Pin
9.3.5
OC_ADJ Pin
9.3.6
PWM_X and RESET_X Pins
9.3.7
Mode Select Pins
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
10.2.1.1
66
10.3
Thermal Considerations
10.3.1
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
Package Options
Mechanical Data (Package|Pins)
DKD|36
MPDS126L
Thermal pad, mechanical data (Package|Pins)
DKD|36
PPTD185D
Orderable Information
sles256f_oa
sles256f_pm
7.3
Feature Description