SLOSE49
November 2020
DRV8434E
PRODUCTION DATA
1
Features
2
Applications
3
Description
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
6.5.1
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagrams
7.3
Feature Description
7.3.1
Bridge Control
7.3.2
Current Regulation
7.3.3
Decay Modes
7.3.3.1
Mixed Decay
7.3.3.2
Fast Decay
7.3.3.3
Smart tune Dynamic Decay
7.3.3.4
Smart tune Ripple Control
7.3.3.5
Blanking time
7.3.4
Charge Pump
7.3.5
Linear Voltage Regulators
7.3.6
Logic and Quad-Level Pin Diagrams
7.3.6.1
nFAULT Pin
7.3.7
Protection Circuits
7.3.7.1
VM Undervoltage Lockout (UVLO)
7.3.7.2
VCP Undervoltage Lockout (CPUV)
7.3.7.3
Overcurrent Protection (OCP)
7.3.7.4
Thermal Shutdown (OTSD)
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
Functional Modes Summary
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
Current Regulation
8.2.2.2
Power Dissipation and Thermal Calculation
8.2.3
Application Curves
8.3
Alternate Application
8.3.1
Design Requirements
8.3.2
Detailed Design Procedure
8.3.2.1
Current Regulation
8.3.2.2
Stepper Motor Speed
8.3.2.3
Decay Modes
9
Power Supply Recommendations
9.1
Bulk Capacitance
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RGE|24
MPQF124G
PWP|28
MPDS373B
Thermal pad, mechanical data (Package|Pins)
RGE|24
QFND008AA
Orderable Information
slose49_oa
2
Applications
Printers
and
scanners
ATMs
and
Textile Machines
Office and home automation
Factory automation
and
robotics
Major home appliances
Vacuum
,
humanoid
, and
robotics