SLVSGF5A
May 2023 – December 2023
DRV8845
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Device Comparison
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
Electrical Characteristics
6.6
Typical Operating Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Motor Configurations
7.3.2
Stepper Control Logic
7.3.3
DC Motor Control
7.3.4
PWM Current Control
7.3.5
Current Regulation and Decay Mode
7.3.6
Blanking Time
7.3.7
Charge Pump
7.3.8
Logic-Level Pin Diagram
7.3.9
Protection Circuits
7.3.9.1
VM Undervoltage Lockout (UVLO)
7.3.9.2
VCP Undervoltage Lockout (CPUV)
7.3.9.3
Overcurrent Protection (OCP)
7.3.9.4
Thermal Shutdown (OTSD)
7.3.9.5
Fault Condition Summary
7.4
Device Functional Modes
7.4.1
Sleep Mode (nSLEEP = 0)
7.4.2
Operating Mode (nSLEEP = 1)
7.4.3
nSLEEP Reset Pulse
7.4.4
Functional Modes Summary
8
Application and Implementation
8.1
Application Information
8.2
Application Schematics
8.3
Application Curves
9
Layout
9.1
Layout Guidelines
9.2
Bulk Capacitance
10
Revision History
11
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RHH|36
MPQF144E
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvsgf5a_oa
Data Sheet
DRV8845: 38 V, 1.5 A Quad H-Bridge Motor Driver with Smart Tune Technology